第一次提交
This commit is contained in:
yuyu lao
3
.gitignore
vendored
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3
.gitignore
vendored
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@ -0,0 +1,3 @@
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/build
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gradle.properties
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downloadutil.iml
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51
build.gradle
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51
build.gradle
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@ -0,0 +1,51 @@
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apply plugin: 'com.android.library'
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apply plugin: 'com.jfrog.bintray'
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android {
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compileSdkVersion 23
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buildToolsVersion "23.0.2"
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defaultConfig {
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minSdkVersion 9
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targetSdkVersion 23
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versionCode 1
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versionName "1.0"
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}
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buildTypes {
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release {
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minifyEnabled false
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proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
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}
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}
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}
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dependencies {
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compile fileTree(dir: 'libs', include: ['*.jar'])
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testCompile 'junit:junit:4.12'
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compile 'com.android.support:appcompat-v7:23.1.1'
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}
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bintray {
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user = project.hasProperty('bintrayUser') ? project.property('bintrayUser') : System.getenv('BINTRAY_USER')
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key = project.hasProperty('bintrayApiKey') ? project.property('bintrayApiKey') : System.getenv('BINTRAY_API_KEY')
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configurations = ['archives']
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pkg {
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repo = 'generic'
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name = 'gradle-bintray-plugin-example'
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userOrg = user
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licenses = ['Apache-2.0']
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vcsUrl = 'https://github.com/bintray/gradle-bintray-plugin.git'
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labels = ['gear', 'gore', 'gorilla']
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publicDownloadNumbers = true
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attributes= ['a': ['ay1', 'ay2'], 'b': ['bee'], c: 'cee'] //Optional package-level attributes
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version {
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name = '1.0-Final-Modules'
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desc = 'Gradle Bintray Plugin 1.0 final'
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vcsTag = '1.3.0'
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attributes = ['gradle-plugin': 'com.use.less:com.use.less.gradle:gradle-useless-plugin']
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}
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}
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}
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task wrapper(type: Wrapper) {
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gradleVersion = '2.4'
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}
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158
jcenter.gradle
Normal file
158
jcenter.gradle
Normal file
@ -0,0 +1,158 @@
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group = PROJ_GROUP
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version = PROJ_VERSION
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project.archivesBaseName = PROJ_ARTIFACTID
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apply plugin: 'com.jfrog.bintray'
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apply plugin: "com.jfrog.artifactory"
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apply plugin: 'maven-publish'
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task sourcesJar(type: Jar) {
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from android.sourceSets.main.java.srcDirs
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classifier = 'sources'
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}
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task javadoc(type: Javadoc) {
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options.encoding = "utf-8"
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source = android.sourceSets.main.java.srcDirs
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classpath += configurations.compile
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classpath += project.files(android.getBootClasspath().join(File.pathSeparator))
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}
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task javadocJar(type: Jar, dependsOn: javadoc) {
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classifier = 'javadoc'
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from javadoc.destinationDir
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}
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javadoc {
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options {
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encoding "UTF-8"
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charSet 'UTF-8'
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author true
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version true
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links "http://docs.oracle.com/javase/7/docs/api"
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title PROJ_ARTIFACTID
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}
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}
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//添加以下信息避免JAVADOC打包时引用其它类库而出现问题，比如出现以下错误
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// xxxx.java:20: 错误: 找不到符号
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// public static <T> T create(JsonElement json, Class<T> classOfModel) {
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// ^
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// 符号: 类 JsonElement
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// 位置: 类 xxxx
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android.libraryVariants.all { variant ->
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println variant.javaCompile.classpath.files
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if (variant.name == 'release') { //我们只需 release 的 javadoc
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task("generate${variant.name.capitalize()}Javadoc", type: Javadoc) {
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// title = ''
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// description = ''
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source = variant.javaCompile.source
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classpath = files(variant.javaCompile.classpath.files, project.android.getBootClasspath())
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options {
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encoding "utf-8"
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links "http://docs.oracle.com/javase/7/docs/api/"
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linksOffline "http://d.android.com/reference", "${android.sdkDirectory}/docs/reference"
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}
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exclude '**/BuildConfig.java'
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exclude '**/R.java'
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}
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task("javadoc${variant.name.capitalize()}Jar", type: Jar, dependsOn: "generate${variant.name.capitalize()}Javadoc") {
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classifier = 'javadoc'
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from tasks.getByName("generate${variant.name.capitalize()}Javadoc").destinationDir
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}
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artifacts {
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archives tasks.getByName("javadoc${variant.name.capitalize()}Jar")
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}
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}
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}
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artifacts {
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archives javadocJar
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archives sourcesJar
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}
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def pomConfig = {
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scm {
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connection PROJ_VCSURL
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developerConnection PROJ_VCSURL
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url PROJ_WEBSITEURL
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}
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licenses {
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license {
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name "The Apache Software License, Version 2.0"
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url "http://www.apache.org/licenses/LICENSE-2.0.txt"
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distribution "repo"
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}
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}
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developers {
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developer {
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id DEVELOPER_ID
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name DEVELOPER_NAME
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email DEVELOPER_EMAIL
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}
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}
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}
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publishing {
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publications {
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mavenJava(MavenPublication) {
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artifactId PROJ_ARTIFACTID
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artifact javadocJar
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artifact sourcesJar
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pom {
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packaging 'aar'
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}
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pom.withXml {
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def root = asNode()
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root.appendNode('description', PROJ_DESCRIPTION)
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root.children().last() + pomConfig
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}
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}
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}
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}
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afterEvaluate {
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publishing.publications.mavenJava.artifact(bundleRelease)
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}
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bintray {
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user = hasProperty("bintrayUser") ? getProperty("bintrayUser") : getProperty("BINTRAY_USER")
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key = hasProperty("bintrayKey") ? getProperty("bintrayKey") : getProperty("BINTRAY_KEY")
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// configurations = ['archives']
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publications = ['mavenJava']
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publish = true
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pkg {
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repo = 'maven'
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name = PROJ_NAME
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desc = PROJ_DESCRIPTION
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websiteUrl = PROJ_WEBSITEURL
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issueTrackerUrl = PROJ_ISSUETRACKERURL
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vcsUrl = PROJ_VCSURL
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licenses = ['Apache-2.0']
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publicDownloadNumbers = true
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}
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}
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artifactory {
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contextUrl = 'http://oss.jfrog.org/artifactory'
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resolve {
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repository {
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repoKey = 'libs-release'
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}
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}
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publish {
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repository {
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repoKey = 'oss-snapshot-local' //The Artifactory repository key to publish to
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username = bintray.user
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password = bintray.key
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maven = true
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}
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defaults {
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publications('mavenJava')
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publishArtifacts = true
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}
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}
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}
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17
proguard-rules.pro
vendored
Normal file
17
proguard-rules.pro
vendored
Normal file
@ -0,0 +1,17 @@
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# Add project specific ProGuard rules here.
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# By default, the flags in this file are appended to flags specified
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# in D:\sdk/tools/proguard/proguard-android.txt
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# You can edit the include path and order by changing the proguardFiles
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# directive in build.gradle.
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#
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# For more details, see
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# http://developer.android.com/guide/developing/tools/proguard.html
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# Add any project specific keep options here:
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# If your project uses WebView with JS, uncomment the following
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# and specify the fully qualified class name to the JavaScript interface
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# class:
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#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
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# public *;
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#}
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@ -0,0 +1,13 @@
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package com.arialyy.downloadutil;
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import android.app.Application;
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import android.test.ApplicationTestCase;
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/**
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* <a href="http://d.android.com/tools/testing/testing_android.html">Testing Fundamentals</a>
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*/
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public class ApplicationTest extends ApplicationTestCase<Application> {
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public ApplicationTest() {
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super(Application.class);
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}
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}
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11
src/main/AndroidManifest.xml
Normal file
11
src/main/AndroidManifest.xml
Normal file
@ -0,0 +1,11 @@
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<manifest xmlns:android="http://schemas.android.com/apk/res/android"
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package="com.arialyy.downloadutil">
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<application
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android:allowBackup="true"
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android:label="@string/app_name"
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android:supportsRtl="true">
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</application>
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</manifest>
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360
src/main/java/com/arialyy/downloadutil/DownLoadUtil.java
Normal file
360
src/main/java/com/arialyy/downloadutil/DownLoadUtil.java
Normal file
@ -0,0 +1,360 @@
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package com.arialyy.downloadutil;
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import android.content.Context;
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import android.support.annotation.NonNull;
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import android.util.Log;
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import android.util.SparseArray;
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import com.arialyy.downloadutil.inf.IDownloadListener;
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import java.io.File;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.RandomAccessFile;
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import java.net.HttpURLConnection;
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import java.net.MalformedURLException;
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import java.net.URL;
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import java.util.Properties;
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/**
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* Created by lyy on 2015/8/25.
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* 下载工具类
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*/
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public class DownLoadUtil {
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private static final String TAG = "DownLoadUtil";
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//下载监听
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private IDownloadListener mListener;
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/**
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* 线程数
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*/
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private static final int THREAD_NUM = 3;
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/**
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* 已经完成下载任务的线程数量
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*/
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private int mCompleteThreadNum = 0;
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private long mCurrentLocation;
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private boolean isDownloading = false;
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private boolean isStop = false;
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private boolean isCancel = false;
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private static final int TIME_OUT = 5000; //超时时间
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boolean newTask = true;
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private int mCancelNum = 0;
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private int mStopNum = 0;
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public DownLoadUtil() {
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}
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/**
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* 获取当前下载位置
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*
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* @return
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*/
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public long getCurrentLocation() {
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return mCurrentLocation;
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}
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public boolean isDownloading() {
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return isDownloading;
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}
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/**
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* 取消下载
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*/
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public void cancelDownload() {
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isCancel = true;
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}
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/**
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* 停止下载
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*/
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public void stopDownload() {
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isStop = true;
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}
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/**
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* 多线程断点续传下载文件，暂停和继续
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*
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* @param context 必须添加该参数，不能使用全局变量的context
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* @param downloadUrl 下载路径
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* @param filePath 保存路径
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* @param downloadListener 下载进度监听 {@link DownloadListener}
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*/
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public void download(final Context context, @NonNull final String downloadUrl, @NonNull final String filePath,
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@NonNull final DownloadListener downloadListener) {
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isDownloading = true;
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mCurrentLocation = 0;
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isStop = false;
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isCancel = false;
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mCancelNum = 0;
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mStopNum = 0;
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final File dFile = new File(filePath);
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//读取已完成的线程数
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final File configFile = new File(context.getFilesDir().getPath() + "/temp/" + dFile.getName() + ".properties");
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try {
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if (!configFile.exists()) { //记录文件被删除，则重新下载
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newTask = true;
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Util.createFile(configFile.getPath());
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} else {
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newTask = false;
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}
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} catch (Exception e) {
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e.printStackTrace();
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mListener.onFail();
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return;
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}
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newTask = !dFile.exists();
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||||
new Thread(new Runnable() {
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@Override
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public void run() {
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try {
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mListener = downloadListener;
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URL url = new URL(downloadUrl);
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HttpURLConnection conn = (HttpURLConnection) url.openConnection();
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conn.setRequestMethod("GET");
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||||
conn.setRequestProperty("Charset", "UTF-8");
|
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conn.setConnectTimeout(TIME_OUT);
|
||||
conn.setRequestProperty("User-Agent", "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.2; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)");
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conn.setRequestProperty("Accept", "image/gif, image/jpeg, image/pjpeg, image/pjpeg, application/x-shockwave-flash, application/xaml+xml, application/vnd.ms-xpsdocument, application/x-ms-xbap, application/x-ms-application, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, */*");
|
||||
conn.connect();
|
||||
int len = conn.getContentLength();
|
||||
if (len < 0) { //网络被劫持时会出现这个问题
|
||||
mListener.onFail();
|
||||
return;
|
||||
}
|
||||
int code = conn.getResponseCode();
|
||||
if (code == 200) {
|
||||
int fileLength = conn.getContentLength();
|
||||
//必须建一个文件
|
||||
Util.createFile(filePath);
|
||||
RandomAccessFile file = new RandomAccessFile(filePath, "rwd");
|
||||
//设置文件长度
|
||||
file.setLength(fileLength);
|
||||
mListener.onPreDownload(conn);
|
||||
//分配每条线程的下载区间
|
||||
Properties pro = null;
|
||||
pro = Util.loadConfig(configFile);
|
||||
int blockSize = fileLength / THREAD_NUM;
|
||||
SparseArray<Thread> tasks = new SparseArray<>();
|
||||
for (int i = 0; i < THREAD_NUM; i++) {
|
||||
long startL = i * blockSize, endL = (i + 1) * blockSize;
|
||||
Object state = pro.getProperty(dFile.getName() + "_state_" + i);
|
||||
if (state != null && Integer.parseInt(state + "") == 1) { //该线程已经完成
|
||||
mCurrentLocation += endL - startL;
|
||||
Log.d(TAG, "++++++++++ 线程_" + i + "_已经下载完成 ++++++++++");
|
||||
mCompleteThreadNum++;
|
||||
if (mCompleteThreadNum == THREAD_NUM) {
|
||||
if (configFile.exists()) {
|
||||
configFile.delete();
|
||||
}
|
||||
mListener.onComplete();
|
||||
isDownloading = false;
|
||||
System.gc();
|
||||
return;
|
||||
}
|
||||
continue;
|
||||
}
|
||||
//分配下载位置
|
||||
Object record = pro.getProperty(dFile.getName() + "_record_" + i);
|
||||
if (!newTask && record != null && Long.parseLong(record + "") > 0) { //如果有记录，则恢复下载
|
||||
Long r = Long.parseLong(record + "");
|
||||
mCurrentLocation += r - startL;
|
||||
Log.d(TAG, "++++++++++ 线程_" + i + "_恢复下载 ++++++++++");
|
||||
mListener.onChildResume(r);
|
||||
startL = r;
|
||||
}
|
||||
if (i == (THREAD_NUM - 1)) {
|
||||
endL = fileLength;//如果整个文件的大小不为线程个数的整数倍，则最后一个线程的结束位置即为文件的总长度
|
||||
}
|
||||
DownloadEntity entity = new DownloadEntity(context, fileLength, downloadUrl, dFile, i, startL, endL);
|
||||
DownLoadTask task = new DownLoadTask(entity);
|
||||
tasks.put(i, new Thread(task));
|
||||
}
|
||||
if (mCurrentLocation > 0) {
|
||||
mListener.onResume(mCurrentLocation);
|
||||
} else {
|
||||
mListener.onStart(mCurrentLocation);
|
||||
}
|
||||
for (int i = 0, count = tasks.size(); i < count; i++) {
|
||||
Thread task = tasks.get(i);
|
||||
if (task != null) {
|
||||
task.start();
|
||||
}
|
||||
}
|
||||
} else {
|
||||
Log.e(TAG, "下载失败，返回码：" + code);
|
||||
isDownloading = false;
|
||||
System.gc();
|
||||
mListener.onFail();
|
||||
}
|
||||
} catch (IOException e) {
|
||||
Log.e(TAG, "下载失败【downloadUrl:" + downloadUrl + "】\n【filePath:" + filePath + "】" + Util.getPrintException(e));
|
||||
isDownloading = false;
|
||||
mListener.onFail();
|
||||
}
|
||||
}
|
||||
}).start();
|
||||
}
|
||||
|
||||
/**
|
||||
* 多线程下载任务类,不能使用AsyncTask来进行多线程下载，因为AsyncTask是串行执行的，这种方式下载速度太慢了
|
||||
*/
|
||||
private class DownLoadTask implements Runnable {
|
||||
private static final String TAG = "DownLoadTask";
|
||||
private DownloadEntity dEntity;
|
||||
private String configFPath;
|
||||
|
||||
public DownLoadTask(DownloadEntity downloadInfo) {
|
||||
this.dEntity = downloadInfo;
|
||||
configFPath = dEntity.context.getFilesDir().getPath() + "/temp/" + dEntity.tempFile.getName() + ".properties";
|
||||
}
|
||||
|
||||
@Override
|
||||
public void run() {
|
||||
try {
|
||||
Log.d(TAG, "线程_" + dEntity.threadId + "_正在下载【" + "开始位置 : " + dEntity.startLocation + "，结束位置：" + dEntity.endLocation + "】");
|
||||
URL url = new URL(dEntity.downloadUrl);
|
||||
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
|
||||
//在头里面请求下载开始位置和结束位置
|
||||
conn.setRequestProperty("Range", "bytes=" + dEntity.startLocation + "-" + dEntity.endLocation);
|
||||
conn.setRequestMethod("GET");
|
||||
conn.setRequestProperty("Charset", "UTF-8");
|
||||
conn.setConnectTimeout(TIME_OUT);
|
||||
conn.setRequestProperty("User-Agent", "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.2; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)");
|
||||
conn.setRequestProperty("Accept", "image/gif, image/jpeg, image/pjpeg, image/pjpeg, application/x-shockwave-flash, application/xaml+xml, application/vnd.ms-xpsdocument, application/x-ms-xbap, application/x-ms-application, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, */*");
|
||||
conn.setReadTimeout(2000); //设置读取流的等待时间,必须设置该参数
|
||||
InputStream is = conn.getInputStream();
|
||||
//创建可设置位置的文件
|
||||
RandomAccessFile file = new RandomAccessFile(dEntity.tempFile, "rwd");
|
||||
//设置每条线程写入文件的位置
|
||||
file.seek(dEntity.startLocation);
|
||||
byte[] buffer = new byte[1024];
|
||||
int len;
|
||||
//当前子线程的下载位置
|
||||
long currentLocation = dEntity.startLocation;
|
||||
while ((len = is.read(buffer)) != -1) {
|
||||
if (isCancel) {
|
||||
Log.d(TAG, "++++++++++ thread_" + dEntity.threadId + "_cancel ++++++++++");
|
||||
break;
|
||||
}
|
||||
|
||||
if (isStop) {
|
||||
break;
|
||||
}
|
||||
|
||||
//把下载数据数据写入文件
|
||||
file.write(buffer, 0, len);
|
||||
synchronized (DownLoadUtil.this) {
|
||||
mCurrentLocation += len;
|
||||
mListener.onProgress(mCurrentLocation);
|
||||
}
|
||||
currentLocation += len;
|
||||
}
|
||||
file.close();
|
||||
is.close();
|
||||
|
||||
if (isCancel) {
|
||||
synchronized (DownLoadUtil.this) {
|
||||
mCancelNum++;
|
||||
if (mCancelNum == THREAD_NUM) {
|
||||
File configFile = new File(configFPath);
|
||||
if (configFile.exists()) {
|
||||
configFile.delete();
|
||||
}
|
||||
|
||||
if (dEntity.tempFile.exists()) {
|
||||
dEntity.tempFile.delete();
|
||||
}
|
||||
Log.d(TAG, "++++++++++++++++ onCancel +++++++++++++++++");
|
||||
isDownloading = false;
|
||||
mListener.onCancel();
|
||||
System.gc();
|
||||
}
|
||||
}
|
||||
return;
|
||||
}
|
||||
|
||||
//停止状态不需要删除记录文件
|
||||
if (isStop) {
|
||||
synchronized (DownLoadUtil.this) {
|
||||
mStopNum++;
|
||||
String location = String.valueOf(currentLocation);
|
||||
Log.i(TAG, "thread_" + dEntity.threadId + "_stop, stop location ==> " + currentLocation);
|
||||
writeConfig(dEntity.tempFile.getName() + "_record_" + dEntity.threadId, location);
|
||||
if (mStopNum == THREAD_NUM) {
|
||||
Log.d(TAG, "++++++++++++++++ onStop +++++++++++++++++");
|
||||
isDownloading = false;
|
||||
mListener.onStop(mCurrentLocation);
|
||||
System.gc();
|
||||
}
|
||||
}
|
||||
return;
|
||||
}
|
||||
|
||||
Log.i(TAG, "线程【" + dEntity.threadId + "】下载完毕");
|
||||
writeConfig(dEntity.tempFile.getName() + "_state_" + dEntity.threadId, 1 + "");
|
||||
mListener.onChildComplete(dEntity.endLocation);
|
||||
mCompleteThreadNum++;
|
||||
if (mCompleteThreadNum == THREAD_NUM) {
|
||||
File configFile = new File(configFPath);
|
||||
if (configFile.exists()) {
|
||||
configFile.delete();
|
||||
}
|
||||
mListener.onComplete();
|
||||
isDownloading = false;
|
||||
System.gc();
|
||||
}
|
||||
} catch (MalformedURLException e) {
|
||||
e.printStackTrace();
|
||||
isDownloading = false;
|
||||
mListener.onFail();
|
||||
} catch (IOException e) {
|
||||
Log.e(TAG, "下载失败【" + dEntity.downloadUrl + "】" + Util.getPrintException(e));
|
||||
isDownloading = false;
|
||||
mListener.onFail();
|
||||
} catch (Exception e) {
|
||||
Log.e(TAG, "获取流失败" + Util.getPrintException(e));
|
||||
isDownloading = false;
|
||||
mListener.onFail();
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* 将记录写入到配置文件
|
||||
*
|
||||
* @param record
|
||||
*/
|
||||
private void writeConfig(String key, String record) throws IOException {
|
||||
File configFile = new File(configFPath);
|
||||
Properties pro = Util.loadConfig(configFile);
|
||||
pro.setProperty(key, record);
|
||||
Util.saveConfig(configFile, pro);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* 子线程下载信息类
|
||||
*/
|
||||
private class DownloadEntity {
|
||||
//文件大小
|
||||
long fileSize;
|
||||
String downloadUrl;
|
||||
int threadId;
|
||||
long startLocation;
|
||||
long endLocation;
|
||||
File tempFile;
|
||||
Context context;
|
||||
|
||||
public DownloadEntity(Context context, long fileSize, String downloadUrl, File file, int threadId, long startLocation, long endLocation) {
|
||||
this.fileSize = fileSize;
|
||||
this.downloadUrl = downloadUrl;
|
||||
this.tempFile = file;
|
||||
this.threadId = threadId;
|
||||
this.startLocation = startLocation;
|
||||
this.endLocation = endLocation;
|
||||
this.context = context;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
}
|
||||
61
src/main/java/com/arialyy/downloadutil/DownloadListener.java
Normal file
61
src/main/java/com/arialyy/downloadutil/DownloadListener.java
Normal file
@ -0,0 +1,61 @@
|
||||
package com.arialyy.downloadutil;
|
||||
|
||||
import com.arialyy.downloadutil.inf.IDownloadListener;
|
||||
|
||||
import java.net.HttpURLConnection;
|
||||
|
||||
/**
|
||||
* 下载监听
|
||||
*/
|
||||
public class DownloadListener implements IDownloadListener {
|
||||
|
||||
@Override
|
||||
public void onResume(long resumeLocation) {
|
||||
|
||||
}
|
||||
|
||||
@Override
|
||||
public void onCancel() {
|
||||
|
||||
}
|
||||
|
||||
@Override
|
||||
public void onFail() {
|
||||
|
||||
}
|
||||
|
||||
@Override
|
||||
public void onPreDownload(HttpURLConnection connection) {
|
||||
|
||||
}
|
||||
|
||||
@Override
|
||||
public void onProgress(long currentLocation) {
|
||||
|
||||
}
|
||||
|
||||
@Override
|
||||
public void onChildComplete(long finishLocation) {
|
||||
|
||||
}
|
||||
|
||||
@Override
|
||||
public void onStart(long startLocation) {
|
||||
|
||||
}
|
||||
|
||||
@Override
|
||||
public void onChildResume(long resumeLocation) {
|
||||
|
||||
}
|
||||
|
||||
@Override
|
||||
public void onStop(long stopLocation) {
|
||||
|
||||
}
|
||||
|
||||
@Override
|
||||
public void onComplete() {
|
||||
|
||||
}
|
||||
}
|
||||
175
src/main/java/com/arialyy/downloadutil/Util.java
Normal file
175
src/main/java/com/arialyy/downloadutil/Util.java
Normal file
@ -0,0 +1,175 @@
|
||||
package com.arialyy.downloadutil;
|
||||
|
||||
import android.util.Log;
|
||||
|
||||
import java.io.File;
|
||||
import java.io.FileInputStream;
|
||||
import java.io.FileNotFoundException;
|
||||
import java.io.FileOutputStream;
|
||||
import java.io.IOException;
|
||||
import java.io.InputStream;
|
||||
import java.math.BigDecimal;
|
||||
import java.util.Properties;
|
||||
|
||||
/**
|
||||
* Created by lyy on 2016/1/22.
|
||||
*/
|
||||
public class Util {
|
||||
private static final String TAG = "util";
|
||||
|
||||
/**
|
||||
* 格式化文件大小
|
||||
*
|
||||
* @param size file.length() 获取文件大小
|
||||
* @return
|
||||
*/
|
||||
public static String formatFileSize(double size) {
|
||||
double kiloByte = size / 1024;
|
||||
if (kiloByte < 1) {
|
||||
return size + "Byte(s)";
|
||||
}
|
||||
|
||||
double megaByte = kiloByte / 1024;
|
||||
if (megaByte < 1) {
|
||||
BigDecimal result1 = new BigDecimal(Double.toString(kiloByte));
|
||||
return result1.setScale(2, BigDecimal.ROUND_HALF_UP).toPlainString() + "KB";
|
||||
}
|
||||
|
||||
double gigaByte = megaByte / 1024;
|
||||
if (gigaByte < 1) {
|
||||
BigDecimal result2 = new BigDecimal(Double.toString(megaByte));
|
||||
return result2.setScale(2, BigDecimal.ROUND_HALF_UP).toPlainString() + "MB";
|
||||
}
|
||||
|
||||
double teraBytes = gigaByte / 1024;
|
||||
if (teraBytes < 1) {
|
||||
BigDecimal result3 = new BigDecimal(Double.toString(gigaByte));
|
||||
return result3.setScale(2, BigDecimal.ROUND_HALF_UP).toPlainString() + "GB";
|
||||
}
|
||||
BigDecimal result4 = new BigDecimal(teraBytes);
|
||||
return result4.setScale(2, BigDecimal.ROUND_HALF_UP).toPlainString() + "TB";
|
||||
}
|
||||
/**
|
||||
* 创建目录 当目录不存在的时候创建文件，否则返回false
|
||||
*
|
||||
* @param path
|
||||
* @return
|
||||
*/
|
||||
public static boolean createDir(String path) {
|
||||
File file = new File(path);
|
||||
if (!file.exists()) {
|
||||
if (!file.mkdirs()) {
|
||||
Log.d(TAG, "创建失败，请检查路径和是否配置文件权限！");
|
||||
return false;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
/**
|
||||
* 创建文件 当文件不存在的时候就创建一个文件，否则直接返回文件
|
||||
*
|
||||
* @param path
|
||||
* @return
|
||||
*/
|
||||
public static File createFile(String path) {
|
||||
File file = new File(path);
|
||||
if (!file.getParentFile().exists()) {
|
||||
Log.d(TAG, "目标文件所在路径不存在，准备创建……");
|
||||
if (!createDir(file.getParent())) {
|
||||
Log.d(TAG, "创建目录文件所在的目录失败！文件路径【" + path + "】");
|
||||
}
|
||||
}
|
||||
// 创建目标文件
|
||||
try {
|
||||
if (!file.exists()) {
|
||||
if (file.createNewFile()) {
|
||||
Log.d(TAG, "创建文件成功:" + file.getAbsolutePath());
|
||||
}
|
||||
return file;
|
||||
} else {
|
||||
return file;
|
||||
}
|
||||
} catch (IOException e) {
|
||||
e.printStackTrace();
|
||||
}
|
||||
return null;
|
||||
}
|
||||
/**
|
||||
* 设置打印的异常格式
|
||||
*/
|
||||
public static String getPrintException(Throwable ex) {
|
||||
StringBuilder err = new StringBuilder();
|
||||
err.append("ExceptionDetailed:\n");
|
||||
err.append("====================Exception Info====================\n");
|
||||
err.append(ex.toString());
|
||||
err.append("\n");
|
||||
StackTraceElement[] stack = ex.getStackTrace();
|
||||
for (StackTraceElement stackTraceElement : stack) {
|
||||
err.append(stackTraceElement.toString()).append("\n");
|
||||
}
|
||||
Throwable cause = ex.getCause();
|
||||
if (cause != null) {
|
||||
err.append("【Caused by】: ");
|
||||
err.append(cause.toString());
|
||||
err.append("\n");
|
||||
StackTraceElement[] stackTrace = cause.getStackTrace();
|
||||
for (StackTraceElement stackTraceElement : stackTrace) {
|
||||
err.append(stackTraceElement.toString()).append("\n");
|
||||
}
|
||||
}
|
||||
err.append("===================================================");
|
||||
return err.toString();
|
||||
}
|
||||
/**
|
||||
* 读取下载配置文件
|
||||
*
|
||||
* @param file
|
||||
* @return
|
||||
*/
|
||||
public static Properties loadConfig(File file) {
|
||||
Properties properties = new Properties();
|
||||
FileInputStream fis = null;
|
||||
try {
|
||||
fis = new FileInputStream(file);
|
||||
properties.load(fis);
|
||||
} catch (Exception e) {
|
||||
e.printStackTrace();
|
||||
} finally {
|
||||
try {
|
||||
if (fis != null) {
|
||||
fis.close();
|
||||
}
|
||||
} catch (IOException e) {
|
||||
e.printStackTrace();
|
||||
}
|
||||
}
|
||||
return properties;
|
||||
}
|
||||
|
||||
/**
|
||||
* 保存配置文件
|
||||
*
|
||||
* @param file
|
||||
* @param properties
|
||||
*/
|
||||
public static void saveConfig(File file, Properties properties) {
|
||||
FileOutputStream fos = null;
|
||||
try {
|
||||
fos = new FileOutputStream(file, false);
|
||||
properties.store(fos, null);
|
||||
} catch (Exception e) {
|
||||
e.printStackTrace();
|
||||
} finally {
|
||||
try {
|
||||
if (fos != null) {
|
||||
fos.flush();
|
||||
fos.close();
|
||||
}
|
||||
} catch (IOException e) {
|
||||
e.printStackTrace();
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,59 @@
|
||||
package com.arialyy.downloadutil.inf;
|
||||
|
||||
import java.net.HttpURLConnection;
|
||||
|
||||
/**
|
||||
* 下载监听
|
||||
*/
|
||||
public interface IDownloadListener {
|
||||
/**
|
||||
* 取消下载
|
||||
*/
|
||||
public void onCancel();
|
||||
|
||||
/**
|
||||
* 下载失败
|
||||
*/
|
||||
public void onFail();
|
||||
|
||||
/**
|
||||
* 下载预处理,可通过HttpURLConnection获取文件长度
|
||||
*/
|
||||
public void onPreDownload(HttpURLConnection connection);
|
||||
|
||||
/**
|
||||
* 下载监听
|
||||
*/
|
||||
public void onProgress(long currentLocation);
|
||||
|
||||
/**
|
||||
* 单一线程的结束位置
|
||||
*/
|
||||
public void onChildComplete(long finishLocation);
|
||||
|
||||
/**
|
||||
* 开始
|
||||
*/
|
||||
public void onStart(long startLocation);
|
||||
|
||||
/**
|
||||
* 子程恢复下载的位置
|
||||
*/
|
||||
public void onChildResume(long resumeLocation);
|
||||
|
||||
/**
|
||||
* 恢复位置
|
||||
*/
|
||||
public void onResume(long resumeLocation);
|
||||
|
||||
/**
|
||||
* 停止
|
||||
*/
|
||||
public void onStop(long stopLocation);
|
||||
|
||||
/**
|
||||
* 下载完成
|
||||
*/
|
||||
public void onComplete();
|
||||
|
||||
}
|
||||
3
src/main/res/values/strings.xml
Normal file
3
src/main/res/values/strings.xml
Normal file
@ -0,0 +1,3 @@
|
||||
<resources>
|
||||
<string name="app_name">DownloadUtil</string>
|
||||
</resources>
|
||||
15
src/test/java/com/arialyy/downloadutil/ExampleUnitTest.java
Normal file
15
src/test/java/com/arialyy/downloadutil/ExampleUnitTest.java
Normal file
@ -0,0 +1,15 @@
|
||||
package com.arialyy.downloadutil;
|
||||
|
||||
import org.junit.Test;
|
||||
|
||||
import static org.junit.Assert.*;
|
||||
|
||||
/**
|
||||
* To work on unit tests, switch the Test Artifact in the Build Variants view.
|
||||
*/
|
||||
public class ExampleUnitTest {
|
||||
@Test
|
||||
public void addition_isCorrect() throws Exception {
|
||||
assertEquals(4, 2 + 2);
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user