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2016-02-20 00:21:45 +08:00
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+# DownloadUtil
+这是android 文件下载工具类，实现了多线程断点续传功能
+
+#使用
+```java
+DownloadUtil mUtil;
+
+/**
+ * 初始化下载工具类
+ */
+ private void init(){
+ 	mUtil = new DownloadUtile();
+ }
+ 
+private void download(){
+	mUtil.download(this, mDownloadUrl, Environment.getExternalStorageDirectory().getPath() + "/test.apk"
+                , new DownloadListener() {
+                    long fileSize = 1;
+
+                    @Override
+                    public void onPreDownload(HttpURLConnection connection) {
+                        super.onPreDownload(connection);
+                        mPb.setMax(100);
+                        fileSize = connection.getContentLength();
+                        mUpdateHandler.obtainMessage(DOWNLOAD_PRE, fileSize).sendToTarget();
+                    }
+
+                    @Override
+                    public void onStart(long startLocation) {
+                        super.onStart(startLocation);
+                    }
+
+                    @Override
+                    public void onChildResume(long resumeLocation) {
+                        super.onChildResume(resumeLocation);
+                    }
+
+                    @Override
+                    public void onChildComplete(long finishLocation) {
+                        super.onChildComplete(finishLocation);
+                    }
+
+                    @Override
+                    public void onProgress(long currentLocation) {
+                        super.onProgress(currentLocation);
+                        mPb.setProgress((int) (currentLocation * 100 / fileSize));
+                    }
+
+                    @Override
+                    public void onStop(long stopLocation) {
+                        super.onStop(stopLocation);
+                        mUpdateHandler.obtainMessage(DOWNLOAD_STOP).sendToTarget();
+                    }
+
+                    @Override
+                    public void onCancel() {
+                        super.onCancel();
+                        mUpdateHandler.obtainMessage(DOWNLOAD_CANCEL).sendToTarget();
+                    }
+
+                    @Override
+                    public void onResume(long resumeLocation) {
+                        super.onResume(resumeLocation);
+                        mUpdateHandler.obtainMessage(DOWNLOAD_RESUME, resumeLocation).sendToTarget();
+                    }
+
+                    @Override
+                    public void onFail() {
+                        super.onFail();
+                        mUpdateHandler.obtainMessage(DOWNLOAD_FAILE).sendToTarget();
+                    }
+
+                    @Override
+                    public void onComplete() {
+                        super.onComplete();
+                        mUpdateHandler.obtainMessage(DOWNLOAD_COMPLETE).sendToTarget();
+                    }
+                });
+}
+```
+
+
+#示例
+![例子图](https://github.com/AriaLyy/DownloadUtil/blob/master/img/11.gif "")
+
+#下载