大量bug修复，单任务下载例子编写

app/src/main/java/com/arialyy/simple/activity/SimpleTestActivity.java

@@ -1,6 +1,5 @@
 package com.arialyy.simple.activity;
 
-import android.Manifest;
 import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
@@ -19,10 +18,8 @@ import com.arialyy.downloadutil.core.DownloadManager;
 import com.arialyy.downloadutil.core.command.CommandFactory;
 import com.arialyy.downloadutil.core.command.IDownloadCommand;
 import com.arialyy.downloadutil.entity.DownloadEntity;
-import com.arialyy.downloadutil.util.DownLoadUtil;
+import com.arialyy.downloadutil.orm.DbEntity;
 import com.arialyy.downloadutil.util.Util;
-import com.arialyy.frame.permission.OnPermissionCallback;
-import com.arialyy.frame.permission.PermissionManager;
 import com.arialyy.frame.util.show.L;
 import com.arialyy.simple.R;
 import com.arialyy.simple.base.BaseActivity;
@@ -43,10 +40,12 @@ public class SimpleTestActivity extends BaseActivity<ActivitySimpleBinding> {
     private static final int DOWNLOAD_COMPLETE = 0x06;
     private ProgressBar mPb;
     private String mDownloadUrl = "http://static.gaoshouyou.com/d/12/0d/7f120f50c80d2e7b8c4ba24ece4f9cdd.apk";
-    private DownLoadUtil mUtil;
+    private Button mStart, mStop, mCancel;
-    private Button       mStart, mStop, mCancel;
+    private             TextView        mSize;
-    private             TextView mSize;
+    @Bind(R.id.toolbar) Toolbar         toolbar;
-    @Bind(R.id.toolbar) Toolbar  toolbar;
+    private             CommandFactory  mFactory;
+    private             DownloadManager mManager;
+    private             DownloadEntity  mEntity;
 
     private Handler mUpdateHandler = new Handler() {
         @Override public void handleMessage(Message msg) {
@@ -72,12 +71,13 @@ public class SimpleTestActivity extends BaseActivity<ActivitySimpleBinding> {
                     break;
                 case DOWNLOAD_RESUME:
                     Toast.makeText(SimpleTestActivity.this,
-                            "恢复下载，恢复位置 ==> " + Util.formatFileSize((Long) msg.obj),
+                                   "恢复下载，恢复位置 ==> " + Util.formatFileSize((Long) msg.obj),
-                            Toast.LENGTH_SHORT).show();
+                                   Toast.LENGTH_SHORT).show();
                     mStart.setEnabled(false);
                     break;
                 case DOWNLOAD_COMPLETE:
                     Toast.makeText(SimpleTestActivity.this, "下载完成", Toast.LENGTH_SHORT).show();
+                    mStart.setText("重新开始");
                     mStart.setEnabled(true);
                     mCancel.setEnabled(false);
                     mStop.setEnabled(false);
@@ -96,12 +96,15 @@ public class SimpleTestActivity extends BaseActivity<ActivitySimpleBinding> {
                     DownloadEntity entity = intent.getParcelableExtra(DownloadManager.ACTION_PRE);
                     len = entity.getFileSize();
                     L.d(TAG, "download pre");
+                    mUpdateHandler.obtainMessage(DOWNLOAD_PRE, len).sendToTarget();
                     break;
                 case DownloadManager.ACTION_START:
                     L.d(TAG, "download start");
                     break;
                 case DownloadManager.ACTION_RESUME:
                     L.d(TAG, "download resume");
+                    long location = intent.getLongExtra(DownloadManager.CURRENT_LOCATION, 1);
+                    mUpdateHandler.obtainMessage(DOWNLOAD_RESUME, location).sendToTarget();
                     break;
                 case DownloadManager.ACTION_RUNNING:
                     long current = intent.getLongExtra(DownloadManager.ACTION_RUNNING, 0);
@@ -113,6 +116,16 @@ public class SimpleTestActivity extends BaseActivity<ActivitySimpleBinding> {
                     break;
                 case DownloadManager.ACTION_STOP:
                     L.d(TAG, "download stop");
+                    mUpdateHandler.sendEmptyMessage(DOWNLOAD_STOP);
+                    break;
+                case DownloadManager.ACTION_COMPLETE:
+                    mUpdateHandler.sendEmptyMessage(DOWNLOAD_COMPLETE);
+                    break;
+                case DownloadManager.ACTION_CANCEL:
+                    mUpdateHandler.sendEmptyMessage(DOWNLOAD_CANCEL);
+                    break;
+                case DownloadManager.ACTION_FAIL:
+                    mUpdateHandler.sendEmptyMessage(DOWNLOAD_FAILE);
                     break;
             }
         }
@@ -141,6 +154,7 @@ public class SimpleTestActivity extends BaseActivity<ActivitySimpleBinding> {
         super.init(savedInstanceState);
         setSupportActionBar(toolbar);
         init();
+
     }
 
     private void init() {
@@ -149,7 +163,16 @@ public class SimpleTestActivity extends BaseActivity<ActivitySimpleBinding> {
         mStop = (Button) findViewById(R.id.stop);
         mCancel = (Button) findViewById(R.id.cancel);
         mSize = (TextView) findViewById(R.id.size);
-        mUtil = new DownLoadUtil();
+        mFactory = CommandFactory.getInstance();
+        mManager = DownloadManager.getInstance();
+        mEntity = DbEntity.findData(DownloadEntity.class, new String[]{"downloadUrl"},
+                                    new String[]{mDownloadUrl});
+        if (mEntity != null) {
+            mPb.setProgress((int) ((mEntity.getCurrentProgress() * 100) / mEntity.getFileSize()));
+            mSize.setText(Util.formatFileSize(mEntity.getFileSize()));
+        } else {
+            mEntity = new DownloadEntity();
+        }
     }
 
     public void onClick(View view) {
@@ -181,30 +204,29 @@ public class SimpleTestActivity extends BaseActivity<ActivitySimpleBinding> {
         }
     }
 
-    DownloadEntity entity = new DownloadEntity();
-
     private void start() {
-        entity.setFileName("test.apk");
+        mEntity.setFileName("test.apk");
-        entity.setDownloadUrl(mDownloadUrl);
+        mEntity.setDownloadUrl(mDownloadUrl);
-        entity.setDownloadPath(Environment.getExternalStorageDirectory().getPath() + "/test.apk");
+        mEntity.setDownloadPath(Environment.getExternalStorageDirectory().getPath() + "/test.apk");
         List<IDownloadCommand> commands = new ArrayList<>();
-        IDownloadCommand addCommand = CommandFactory.getInstance()
+        IDownloadCommand addCommand = mFactory.createCommand(this, mEntity,
-                .createCommand(this, entity, CommandFactory.TASK_CREATE);
+                                                             CommandFactory.TASK_CREATE);
-        IDownloadCommand startCommand = CommandFactory.getInstance()
+        IDownloadCommand startCommand = mFactory.createCommand(this, mEntity,
-                .createCommand(this, entity, CommandFactory.TASK_START);
+                                                               CommandFactory.TASK_START);
         commands.add(addCommand);
         commands.add(startCommand);
-        DownloadManager.getInstance().setCommands(commands).exe();
+        mManager.setCommands(commands).exe();
     }
 
     private void stop() {
-//        mUtil.stopDownload();
+        IDownloadCommand stopCommand = mFactory.createCommand(this, mEntity,
-        IDownloadCommand stopCommand = CommandFactory.getInstance()
+                                                              CommandFactory.TASK_STOP);
-                .createCommand(this, entity, CommandFactory.TASK_STOP);
+        mManager.setCommand(stopCommand).exe();
-        DownloadManager.getInstance().setCommand(stopCommand).exe();
     }
 
     private void cancel() {
-        mUtil.cancelDownload();
+        IDownloadCommand cancelCommand = mFactory.createCommand(this, mEntity,
+                                                                CommandFactory.TASK_CANCEL);
+        mManager.setCommand(cancelCommand).exe();
     }
 }

downloadutil/src/main/java/com/arialyy/downloadutil/core/DownloadManager.java

@@ -5,6 +5,8 @@ import android.content.Context;
 import android.util.Log;
 
 import com.arialyy.downloadutil.core.command.IDownloadCommand;
+import com.arialyy.downloadutil.entity.DownloadEntity;
+import com.arialyy.downloadutil.orm.DbEntity;
 import com.arialyy.downloadutil.orm.DbUtil;
 
 import java.util.ArrayList;
@@ -102,6 +104,10 @@ public class DownloadManager {
         return INSTANCE;
     }
 
+    public List<DownloadEntity> getAllDownloadEntity(){
+        return DbEntity.findAllData(DownloadEntity.class);
+    }
+
     /**
      * 设置命令
      */

downloadutil/src/main/java/com/arialyy/downloadutil/core/DownloadTarget.java

@@ -4,6 +4,7 @@ import android.content.Context;
 import android.util.Log;
 
 import com.arialyy.downloadutil.entity.DownloadEntity;
+import com.arialyy.downloadutil.util.Task;
 
 /**
  * Created by lyy on 2016/8/17.
@@ -53,13 +54,13 @@ public class DownloadTarget extends IDownloadTarget {
     }
 
     @Override public void cancelTask(Task task) {
-        if (mExecutePool.removeTask(task)) {
+        if (mExecutePool.removeTask(task) || mCachePool.removeTask(task)) {
             task.cancel();
         }
     }
 
     @Override public void reTryStart(Task task) {
-        if (!task.getDownloadUtil().isDownloading()) {
+        if (!task.isDownloading()) {
             task.start();
         } else {
             Log.w(TAG, "任务没有完全停止，重试下载失败");
@@ -77,9 +78,6 @@ public class DownloadTarget extends IDownloadTarget {
         if (task == null) {
             task = mCachePool.getTask(entity.getDownloadUrl());
         }
-        if (task == null) {
-            task = createTask(entity);
-        }
         return task;
     }
 

downloadutil/src/main/java/com/arialyy/downloadutil/core/IDownloadTarget.java

@@ -9,6 +9,7 @@ import com.arialyy.downloadutil.core.inf.ITask;
 import com.arialyy.downloadutil.core.pool.CachePool;
 import com.arialyy.downloadutil.core.pool.ExecutePool;
 import com.arialyy.downloadutil.entity.DownloadEntity;
+import com.arialyy.downloadutil.util.Task;
 
 /**
  * Created by lyy on 2016/8/16.
@@ -210,7 +211,7 @@ public abstract class IDownloadTarget implements IDownloader, ITask {
             target.removeTask(entity);
             Task newTask = target.getNextTask();
             if (newTask == null) {
-                Log.e(TAG, "没有下一任务");
+                Log.w(TAG, "没有下一任务");
                 return;
             }
             target.startTask(newTask);

downloadutil/src/main/java/com/arialyy/downloadutil/core/TaskFactory.java

@@ -4,6 +4,7 @@ import android.content.Context;
 import android.os.Handler;
 
 import com.arialyy.downloadutil.entity.DownloadEntity;
+import com.arialyy.downloadutil.util.Task;
 
 /**
  * Created by lyy on 2016/8/18.
@@ -37,6 +38,6 @@ public class TaskFactory {
     public Task createTask(Context context, DownloadEntity entity, Handler handler) {
         Task.Builder builder = new Task.Builder(context, entity);
         builder.setOutHandler(handler);
-        return builder.builder();
+        return builder.build();
     }
 }

downloadutil/src/main/java/com/arialyy/downloadutil/core/command/AddCommand.java

@@ -1,7 +1,9 @@
 package com.arialyy.downloadutil.core.command;
 
 import android.content.Context;
+import android.util.Log;
 
+import com.arialyy.downloadutil.util.Task;
 import com.arialyy.downloadutil.entity.DownloadEntity;
 
 /**
@@ -15,6 +17,11 @@ class AddCommand extends IDownloadCommand {
     }
 
     @Override public void executeComment() {
-        target.createTask(mEntity);
+        Task task = target.getTask(mEntity);
+        if (task == null) {
+            target.createTask(mEntity);
+        }else {
+            Log.w(TAG, "添加命令执行失败，【该任务已经存在】");
+        }
     }
 }

downloadutil/src/main/java/com/arialyy/downloadutil/core/command/CancelCommand.java

@@ -2,6 +2,7 @@ package com.arialyy.downloadutil.core.command;
 
 import android.content.Context;
 
+import com.arialyy.downloadutil.util.Task;
 import com.arialyy.downloadutil.entity.DownloadEntity;
 
 /**
@@ -15,6 +16,12 @@ class CancelCommand extends IDownloadCommand {
     }
 
     @Override public void executeComment() {
-        target.cancelTask(target.getTask(mEntity));
+        Task task = target.getTask(mEntity);
+        if (task == null){
+            task = target.createTask(mEntity);
+        }
+        if (task != null) {
+            target.cancelTask(task);
+        }
     }
 }

downloadutil/src/main/java/com/arialyy/downloadutil/core/command/IDownloadCommand.java

@@ -6,6 +6,7 @@ import com.arialyy.downloadutil.core.DownloadTarget;
 import com.arialyy.downloadutil.core.IDownloadTarget;
 import com.arialyy.downloadutil.entity.DownloadEntity;
 import com.arialyy.downloadutil.help.CheckHelp;
+import com.arialyy.downloadutil.util.Util;
 
 /**
  * Created by lyy on 2016/8/22.
@@ -15,6 +16,7 @@ public abstract class IDownloadCommand {
     protected IDownloadTarget target;
     protected Context         mContext;
     protected DownloadEntity  mEntity;
+    protected String          TAG;
 
     /**
      * @param context context
@@ -27,6 +29,7 @@ public abstract class IDownloadCommand {
         target = DownloadTarget.getInstance();
         mContext = context;
         mEntity = entity;
+        TAG = Util.getClassName(this);
     }
 
     public Context getContext() {

downloadutil/src/main/java/com/arialyy/downloadutil/core/command/StartCommand.java

@@ -2,6 +2,7 @@ package com.arialyy.downloadutil.core.command;
 
 import android.content.Context;
 
+import com.arialyy.downloadutil.util.Task;
 import com.arialyy.downloadutil.entity.DownloadEntity;
 
 /**
@@ -15,6 +16,12 @@ class StartCommand extends IDownloadCommand {
     }
 
     @Override public void executeComment() {
-        target.startTask(target.getTask(mEntity));
+        Task task = target.getTask(mEntity);
+        if (task == null) {
+            task = target.createTask(mEntity);
+        }
+        if (task != null) {
+            target.startTask(task);
+        }
     }
 }

downloadutil/src/main/java/com/arialyy/downloadutil/core/command/StateCommand.java

@@ -19,6 +19,7 @@ class StateCommand extends IDownloadCommand {
     }
 
     @Override public void executeComment() {
+
         target.getTaskState(mEntity);
     }
 }

downloadutil/src/main/java/com/arialyy/downloadutil/core/command/StopCommand.java

@@ -1,7 +1,9 @@
 package com.arialyy.downloadutil.core.command;
 
 import android.content.Context;
+import android.util.Log;
 
+import com.arialyy.downloadutil.util.Task;
 import com.arialyy.downloadutil.entity.DownloadEntity;
 
 /**
@@ -19,6 +21,11 @@ class StopCommand extends IDownloadCommand {
     }
 
     @Override public void executeComment() {
-        target.stopTask(target.getTask(mEntity));
+        Task task = target.getTask(mEntity);
+        if (task != null) {
+            target.stopTask(task);
+        } else {
+            Log.w(TAG, "停止命令执行失败，【调度器中没有该任务】");
+        }
     }
 }

downloadutil/src/main/java/com/arialyy/downloadutil/core/inf/IDownloader.java

@@ -1,6 +1,6 @@
 package com.arialyy.downloadutil.core.inf;
 
-import com.arialyy.downloadutil.core.Task;
+import com.arialyy.downloadutil.util.Task;
 
 /**
  * Created by lyy on 2016/8/16.

downloadutil/src/main/java/com/arialyy/downloadutil/core/inf/IPool.java

@@ -1,6 +1,6 @@
 package com.arialyy.downloadutil.core.inf;
 
-import com.arialyy.downloadutil.core.Task;
+import com.arialyy.downloadutil.util.Task;
 
 /**
  * Created by lyy on 2016/8/14.

downloadutil/src/main/java/com/arialyy/downloadutil/core/inf/ITask.java

@@ -1,6 +1,6 @@
 package com.arialyy.downloadutil.core.inf;
 
-import com.arialyy.downloadutil.core.Task;
+import com.arialyy.downloadutil.util.Task;
 import com.arialyy.downloadutil.entity.DownloadEntity;
 
 /**

downloadutil/src/main/java/com/arialyy/downloadutil/core/pool/CachePool.java

@@ -3,7 +3,7 @@ package com.arialyy.downloadutil.core.pool;
 import android.text.TextUtils;
 import android.util.Log;
 
-import com.arialyy.downloadutil.core.Task;
+import com.arialyy.downloadutil.util.Task;
 import com.arialyy.downloadutil.core.inf.IPool;
 import com.arialyy.downloadutil.util.Util;
 
@@ -45,14 +45,11 @@ public class CachePool implements IPool {
             }
             String url = task.getDownloadEntity().getDownloadUrl();
             if (mCacheQueue.contains(task)) {
-                Log.e(TAG, "队列中已经包含了该任务，任务下载链接【" + url + "】");
+                Log.w(TAG, "队列中已经包含了该任务，任务下载链接【" + url + "】");
                 return false;
             } else {
-                boolean s = mCacheQueue.offer(task);
+                 boolean s = mCacheQueue.offer(task);
-                Log.w(TAG, "任务添加" + (s ?
+                Log.d(TAG, "任务添加" + (s ? "成功" : "失败，【" + url + "】"));
-                        "成功" :
-                        "失败，【" + url + "】"
-                ));
                 if (s) {
                     mCacheArray.put(Util.keyToHashKey(url), task);
                 }

downloadutil/src/main/java/com/arialyy/downloadutil/core/pool/ExecutePool.java

@@ -3,7 +3,7 @@ package com.arialyy.downloadutil.core.pool;
 import android.text.TextUtils;
 import android.util.Log;
 
-import com.arialyy.downloadutil.core.Task;
+import com.arialyy.downloadutil.util.Task;
 import com.arialyy.downloadutil.core.inf.IPool;
 import com.arialyy.downloadutil.util.Util;
 
@@ -70,10 +70,7 @@ public class ExecutePool implements IPool {
     private boolean putNewTask(Task newTask) {
         String  url = newTask.getDownloadEntity().getDownloadUrl();
         boolean s   = mExecuteQueue.offer(newTask);
-        Log.w(TAG, "任务添加" + (s ?
+        Log.w(TAG, "任务添加" + (s ? "成功" : "失败，【" + url + "】"));
-                "成功" :
-                "失败，【" + url + "】"
-        ));
         if (s) {
             newTask.start();
             mExecuteArray.put(Util.keyToHashKey(url), newTask);

downloadutil/src/main/java/com/arialyy/downloadutil/orm/DbEntity.java

@@ -38,14 +38,14 @@ public class DbEntity {
      * 删除当前数据
      */
     public void deleteData() {
-        mUtil.delData(this, new Object[]{"rowid"}, new Object[]{rowID});
+        mUtil.delData(getClass(), new Object[]{"rowid"}, new Object[]{rowID});
     }
 
     /**
      * 根据条件删除数据
      */
     public void deleteData(@NonNull Object[] wheres, @NonNull Object[] values) {
-        mUtil.delData(this, wheres, values);
+        mUtil.delData(getClass(), wheres, values);
     }
 
     /**
@@ -104,8 +104,9 @@ public class DbEntity {
      *
      * @return 没有数据返回null
      */
-    public <T extends DbEntity> List<T> findAllData(Class<T> clazz) {
+    public static <T extends DbEntity> List<T> findAllData(Class<T> clazz) {
-        return mUtil.findAllData(clazz, this);
+        DbUtil util = DbUtil.getInstance();
+        return util.findAllData(clazz);
     }
 
     /**
@@ -113,9 +114,10 @@ public class DbEntity {
      *
      * @return 没有数据返回null
      */
-    public <T extends DbEntity> List<T> findDatas(Class<T> clazz, @NonNull String[] wheres,
+    public static <T extends DbEntity> List<T> findDatas(Class<T> clazz, @NonNull String[] wheres,
-                                                  @NonNull String[] values) {
+            @NonNull String[] values) {
-        return mUtil.findData(clazz, this, wheres, values);
+        DbUtil util = DbUtil.getInstance();
+        return util.findData(clazz, wheres, values);
     }
 
     /**
@@ -123,9 +125,10 @@ public class DbEntity {
      *
      * @return 没有数据返回null
      */
-    public <T extends DbEntity> T findData(Class<T> clazz, @NonNull String[] wheres,
+    public static <T extends DbEntity> T findData(Class<T> clazz, @NonNull String[] wheres,
-                                           @NonNull String[] values) {
+            @NonNull String[] values) {
-        List<T> datas = mUtil.findData(clazz, this, wheres, values);
+        DbUtil  util  = DbUtil.getInstance();
+        List<T> datas = util.findData(clazz, wheres, values);
         return datas == null ? null : datas.size() > 0 ? datas.get(0) : null;
     }
 }

downloadutil/src/main/java/com/arialyy/downloadutil/orm/DbUtil.java

@@ -62,7 +62,7 @@ public class DbUtil {
     /**
      * 删除某条数据
      */
-    protected void delData(DbEntity dbEntity, @NonNull Object[] wheres, @NonNull Object[] values) {
+    protected void delData(Class clazz, @NonNull Object[] wheres, @NonNull Object[] values) {
         mDb = mHelper.getWritableDatabase();
         if (wheres.length <= 0 || values.length <= 0) {
             Log.e(TAG, "输入删除条件");
@@ -72,7 +72,7 @@ public class DbUtil {
             return;
         }
         StringBuilder sb = new StringBuilder();
-        sb.append("DELETE FROM ").append(Util.getClassName(dbEntity)).append(" WHERE ");
+        sb.append("DELETE FROM ").append(Util.getClassName(clazz)).append(" WHERE ");
         int i = 0;
         for (Object where : wheres) {
             sb.append(where).append("=").append("'").append(values[i]).append("'");
@@ -104,9 +104,9 @@ public class DbUtil {
                 sb.append(i > 0 ? ", " : "");
                 try {
                     sb.append(field.getName())
-                      .append(" = '")
+                            .append(" = '")
-                      .append(field.get(dbEntity).toString())
+                            .append(field.get(dbEntity).toString())
-                      .append("'");
+                            .append("'");
                 } catch (IllegalAccessException e) {
                     e.printStackTrace();
                 }
@@ -121,10 +121,10 @@ public class DbUtil {
     /**
      * 遍历所有数据
      */
-    protected <T extends DbEntity> List<T> findAllData(Class<T> clazz, DbEntity dbEntity) {
+    protected <T extends DbEntity> List<T> findAllData(Class<T> clazz) {
         mDb = mHelper.getReadableDatabase();
         StringBuilder sb = new StringBuilder();
-        sb.append("SELECT rowid, * FROM ").append(Util.getClassName(dbEntity));
+        sb.append("SELECT rowid, * FROM ").append(Util.getClassName(clazz));
         print(FIND_ALL_DATA, sb.toString());
         Cursor cursor = mDb.rawQuery(sb.toString(), null);
         return cursor.getCount() > 0 ? newInstanceEntity(clazz, cursor) : null;
@@ -133,8 +133,7 @@ public class DbUtil {
     /**
      * 条件查寻数据
      */
-    protected <T extends DbEntity> List<T> findData(Class<T> clazz, DbEntity dbEntity,
+    protected <T extends DbEntity> List<T> findData(Class<T> clazz, @NonNull String[] wheres,
-                                                    @NonNull String[] wheres,
                                                     @NonNull String[] values) {
         mDb = mHelper.getReadableDatabase();
         if (wheres.length <= 0 || values.length <= 0) {
@@ -145,7 +144,7 @@ public class DbUtil {
             return null;
         }
         StringBuilder sb = new StringBuilder();
-        sb.append("SELECT rowid, * FROM ").append(Util.getClassName(dbEntity)).append(" where ");
+        sb.append("SELECT rowid, * FROM ").append(Util.getClassName(clazz)).append(" where ");
         int i = 0;
         for (Object where : wheres) {
             sb.append(where).append("=").append("'").append(values[i]).append("'");
@@ -161,10 +160,10 @@ public class DbUtil {
      * 插入数据
      */
     protected void insertData(DbEntity dbEntity) {
-        mDb = mHelper.getWritableDatabase();
         if (!tableExists(dbEntity)) {
             createTable(dbEntity);
         }
+        mDb = mHelper.getWritableDatabase();
         Class<?> clazz  = dbEntity.getClass();
         Field[]  fields = Util.getFields(clazz);
         if (fields != null && fields.length > 0) {
@@ -209,6 +208,9 @@ public class DbUtil {
      * 查找某张表是否存在
      */
     public synchronized boolean tableExists(DbEntity dbEntity) {
+        if (mDb == null || !mDb.isOpen()) {
+            mDb = mHelper.getReadableDatabase();
+        }
         Cursor cursor = null;
         try {
             StringBuilder sb = new StringBuilder();
@@ -227,6 +229,7 @@ public class DbUtil {
             e.printStackTrace();
         } finally {
             if (cursor != null) cursor.close();
+            close();
         }
         return false;
     }
@@ -235,6 +238,9 @@ public class DbUtil {
      * 创建表
      */
     private void createTable(DbEntity dbEntity) {
+        if (mDb == null || !mDb.isOpen()) {
+            mDb = mHelper.getWritableDatabase();
+        }
         Field[] fields = Util.getFields(dbEntity.getClass());
         if (fields != null && fields.length > 0) {
             StringBuilder sb = new StringBuilder();
@@ -271,6 +277,7 @@ public class DbUtil {
             print(CREATE_TABLE, str);
             mDb.execSQL(str);
         }
+        close();
     }
 
     /**

downloadutil/src/main/java/com/arialyy/downloadutil/util/DownLoadUtil.java

@@ -5,6 +5,8 @@ import android.support.annotation.NonNull;
 import android.util.Log;
 import android.util.SparseArray;
 
+import com.arialyy.downloadutil.entity.DownloadEntity;
+
 import java.io.File;
 import java.io.IOException;
 import java.io.InputStream;
@@ -18,7 +20,7 @@ import java.util.Properties;
  * Created by lyy on 2015/8/25.
  * 下载工具类
  */
-public class DownLoadUtil {
+final class DownLoadUtil {
     private static final String TAG = "DownLoadUtil";
     //下载监听
     private IDownloadListener mListener;
@@ -38,8 +40,13 @@ public class DownLoadUtil {
     boolean isNewTask = true;
     private int mCancelNum = 0;
     private int mStopNum   = 0;
+    private Context        mContext;
+    private DownloadEntity mDownloadEntity;
 
-    public DownLoadUtil() {
+
+    public DownLoadUtil(Context context, DownloadEntity entity) {
+        mContext = context.getApplicationContext();
+        mDownloadEntity = entity;
     }
 
     public IDownloadListener getListener() {
@@ -71,27 +78,50 @@ public class DownLoadUtil {
         isStop = true;
     }
 
+    /**
+     * 删除下载记录文件
+     */
+    public void delConfigFile() {
+        if (mContext != null && mDownloadEntity != null) {
+            File dFile = new File(mDownloadEntity.getDownloadPath());
+            File config = new File(
+                    mContext.getFilesDir().getPath() + "/temp/" + dFile.getName() + ".properties");
+            if (config.exists()) {
+                config.delete();
+            }
+        }
+    }
+
+    /**
+     * 删除temp文件
+     */
+    public void delTempFile() {
+        if (mContext != null && mDownloadEntity != null) {
+            File dFile = new File(mDownloadEntity.getDownloadPath());
+            if (dFile.exists()) {
+                dFile.delete();
+            }
+        }
+    }
+
     /**
      * 多线程断点续传下载文件，暂停和继续
      *
-     * @param context          必须添加该参数，不能使用全局变量的context
-     * @param downloadUrl      下载路径
-     * @param filePath         保存路径
      * @param downloadListener 下载进度监听 {@link DownloadListener}
      */
-    public void download(final Context context, @NonNull final String downloadUrl,
+    public void start(@NonNull final IDownloadListener downloadListener) {
-                         @NonNull final String filePath,
-                         @NonNull final IDownloadListener downloadListener) {
         isDownloading = true;
         mCurrentLocation = 0;
         isStop = false;
         isCancel = false;
         mCancelNum = 0;
         mStopNum = 0;
-        final File dFile = new File(filePath);
+        final String filePath    = mDownloadEntity.getDownloadPath();
+        final String downloadUrl = mDownloadEntity.getDownloadUrl();
+        final File   dFile       = new File(filePath);
         //读取已完成的线程数
         final File configFile = new File(
-                context.getFilesDir().getPath() + "/temp/" + dFile.getName() + ".properties");
+                mContext.getFilesDir().getPath() + "/temp/" + dFile.getName() + ".properties");
         try {
             if (!configFile.exists()) { //记录文件被删除，则重新下载
                 isNewTask = true;
@@ -149,8 +179,8 @@ public class DownLoadUtil {
                                 }
                             }
                         }
-                        int                 blockSize = fileLength / THREAD_NUM;
                         SparseArray<Thread> tasks     = new SparseArray<>();
+                        int                 blockSize = fileLength / THREAD_NUM;
                         int[]               recordL   = new int[THREAD_NUM];
                         int                 rl        = 0;
                         for (int i = 0; i < THREAD_NUM; i++) {
@@ -194,11 +224,12 @@ public class DownLoadUtil {
                                 rl++;
                             }
                             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
+                                //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
+                                endL = fileLength;
                             }
-                            DownloadEntity entity = new DownloadEntity(context, fileLength,
+                            ConfigEntity entity = new ConfigEntity(mContext, fileLength,
-                                                                       downloadUrl, dFile, i,
+                                                                   downloadUrl, dFile, i, startL,
-                                                                       startL, endL);
+                                                                   endL);
                             DownLoadTask task = new DownLoadTask(entity);
                             tasks.put(i, new Thread(task));
                         }
@@ -238,13 +269,13 @@ public class DownLoadUtil {
      */
     private class DownLoadTask implements Runnable {
         private static final String TAG = "DownLoadTask";
-        private DownloadEntity dEntity;
+        private ConfigEntity dEntity;
-        private String         configFPath;
+        private String       configFPath;
 
-        public DownLoadTask(DownloadEntity downloadInfo) {
+        public DownLoadTask(ConfigEntity downloadInfo) {
             this.dEntity = downloadInfo;
             configFPath = dEntity.context.getFilesDir()
-                                         .getPath() + "/temp/" + dEntity.tempFile.getName() + ".properties";
+                    .getPath() + "/temp/" + dEntity.tempFile.getName() + ".properties";
         }
 
         @Override public void run() {
@@ -392,7 +423,7 @@ public class DownLoadUtil {
     /**
      * 子线程下载信息类
      */
-    private class DownloadEntity {
+    private class ConfigEntity {
         //文件大小
         long    fileSize;
         String  downloadUrl;
@@ -402,8 +433,8 @@ public class DownLoadUtil {
         File    tempFile;
         Context context;
 
-        public DownloadEntity(Context context, long fileSize, String downloadUrl, File file,
+        public ConfigEntity(Context context, long fileSize, String downloadUrl, File file,
-                              int threadId, long startLocation, long endLocation) {
+                int threadId, long startLocation, long endLocation) {
             this.fileSize = fileSize;
             this.downloadUrl = downloadUrl;
             this.tempFile = file;

downloadutil/src/main/java/com/arialyy/downloadutil/util/SQLHelper.java

@@ -7,7 +7,7 @@
 //import android.database.sqlite.SQLiteOpenHelper;
 //import android.support.annotation.NonNull;
 //
-//import com.arialyy.downloadutil.entity.DownloadEntity;
+//import com.arialyy.downloadutil.entity.ConfigEntity;
 //
 //import java.util.ArrayList;
 //import java.util.List;
@@ -50,8 +50,8 @@
 //    /**
 //     * 获取所有下载实体
 //     */
-//    public List<DownloadEntity> getAllEntity(@NonNull SQLiteDatabase db) {
+//    public List<ConfigEntity> getAllEntity(@NonNull SQLiteDatabase db) {
-//        List<DownloadEntity> list = new ArrayList<>();
+//        List<ConfigEntity> list = new ArrayList<>();
 //        Cursor               c    = db.query(TABLE_NAME, null, null, null, null, null, null);
 //        if (c.moveToFirst()) {
 //            while (c.moveToNext()) {
@@ -65,7 +65,7 @@
 //    /**
 //     * 更新下载实体
 //     */
-//    public void updateEntity(@NonNull SQLiteDatabase db, DownloadEntity entity) {
+//    public void updateEntity(@NonNull SQLiteDatabase db, ConfigEntity entity) {
 //        String   whereClause = "url=?";
 //        String[] whereArgs   = {entity.getDownloadUrl()};
 //        db.update(TABLE_NAME, createCv(entity), whereClause, whereArgs);
@@ -74,7 +74,7 @@
 //    /**
 //     * 删除下载实体
 //     */
-//    public void delEntity(@NonNull SQLiteDatabase db, DownloadEntity entity) {
+//    public void delEntity(@NonNull SQLiteDatabase db, ConfigEntity entity) {
 //        delEntity(db, entity.getDownloadUrl());
 //    }
 //
@@ -93,8 +93,8 @@
 //     * @param downloadUrl
 //     * @return
 //     */
-//    public DownloadEntity findEntity(@NonNull SQLiteDatabase db, @NonNull String downloadUrl) {
+//    public ConfigEntity findEntity(@NonNull SQLiteDatabase db, @NonNull String downloadUrl) {
-//        DownloadEntity entity;
+//        ConfigEntity entity;
 //        String         sql = "select * from " + TABLE_NAME + "where url=?";
 //        Cursor         c   = db.rawQuery(sql, new String[]{downloadUrl});
 //        if (c.getCount() <= 0) {
@@ -113,8 +113,8 @@
 //     *
 //     * @param entity
 //     */
-//    public void savaEntity(@NonNull SQLiteDatabase db, @NonNull DownloadEntity entity) {
+//    public void savaEntity(@NonNull SQLiteDatabase db, @NonNull ConfigEntity entity) {
-//        DownloadEntity temp = findEntity(db, entity.getDownloadUrl());
+//        ConfigEntity temp = findEntity(db, entity.getDownloadUrl());
 //        if (temp == null) {
 //            db.insert(TABLE_NAME, null, createCv(entity));
 //        } else {
@@ -128,9 +128,9 @@
 //     * @param c
 //     * @return
 //     */
-//    private DownloadEntity cursor2Entity(Cursor c) {
+//    private ConfigEntity cursor2Entity(Cursor c) {
-//        DownloadEntity entity;
+//        ConfigEntity entity;
-//        entity = new DownloadEntity();
+//        entity = new ConfigEntity();
 //        entity.setDownloadUrl(c.getString(c.getColumnIndex("url")));
 //        entity.setDownloadPath(c.getString(c.getColumnIndex("path")));
 //        entity.setCompleteTime(c.getLong(c.getColumnIndex("completeTime")));
@@ -148,7 +148,7 @@
 //     * @param entity
 //     * @return
 //     */
-//    private ContentValues createCv(@NonNull DownloadEntity entity) {
+//    private ContentValues createCv(@NonNull ConfigEntity entity) {
 //        ContentValues cv = new ContentValues();
 //        cv.put("url", entity.getDownloadUrl());
 //        cv.put("path", entity.getDownloadPath());

downloadutil/src/main/java/com/arialyy/downloadutil/util/Task.java

@@ -1,4 +1,4 @@
-package com.arialyy.downloadutil.core;
+package com.arialyy.downloadutil.util;
 
 import android.content.Context;
 import android.content.Intent;
@@ -6,9 +6,9 @@ import android.net.Uri;
 import android.os.Handler;
 import android.util.Log;
 
+import com.arialyy.downloadutil.core.DownloadManager;
+import com.arialyy.downloadutil.core.IDownloadTarget;
 import com.arialyy.downloadutil.entity.DownloadEntity;
-import com.arialyy.downloadutil.util.DownLoadUtil;
-import com.arialyy.downloadutil.util.IDownloadListener;
 
 import java.net.HttpURLConnection;
 
@@ -19,41 +19,42 @@ import java.net.HttpURLConnection;
 public class Task {
     public static final String TAG = "Task";
 
-    private DownloadEntity    downloadEntity;
+    private DownloadEntity    mEntity;
-    private IDownloadListener listener;
+    private IDownloadListener mListener;
-    private Handler           outHandler;
+    private Handler           mOutHandler;
-    private Context           context;
+    private Context           mContext;
-    private DownLoadUtil      util;
+    private DownLoadUtil      mUtil;
 
-    private Task() {
+    private Task(Context context, DownloadEntity entity) {
-        util = new DownLoadUtil();
+        mContext = context.getApplicationContext();
+        mEntity = entity;
+        mUtil = new DownLoadUtil(context, entity);
     }
 
     /**
      * 开始下载
      */
     public void start() {
-        if (util.isDownloading()) {
+        if (mUtil.isDownloading()) {
             Log.d(TAG, "任务正在下载");
         } else {
-            if (listener == null) {
+            if (mListener == null) {
-                listener = new DownloadListener(context, downloadEntity, outHandler);
+                mListener = new DownloadListener(mContext, mEntity, mOutHandler);
             }
-            util.download(context, downloadEntity.getDownloadUrl(),
+            mUtil.start(mListener);
-                          downloadEntity.getDownloadPath(), listener);
         }
     }
 
     public DownloadEntity getDownloadEntity() {
-        return downloadEntity;
+        return mEntity;
     }
 
     /**
      * 停止下载
      */
     public void stop() {
-        if (util.isDownloading()) {
+        if (mUtil.isDownloading()) {
-            util.stopDownload();
+            mUtil.stopDownload();
         }
     }
 
@@ -61,14 +62,38 @@ public class Task {
      * 获取下载工具
      */
     public DownLoadUtil getDownloadUtil() {
-        return util;
+        return mUtil;
+    }
+
+    /**
+     * 任务下载状态
+     */
+    public boolean isDownloading() {
+        return mUtil.isDownloading();
     }
 
     /**
      * 取消下载
      */
     public void cancel() {
-        util.cancelDownload();
+        if (mUtil.isDownloading()) {
+            mUtil.cancelDownload();
+        } else {
+            // 如果任务不是下载状态
+            mUtil.cancelDownload();
+            mUtil.delConfigFile();
+            mUtil.delTempFile();
+            mEntity.deleteData();
+
+            //发送取消下载的广播
+            Uri.Builder builder = new Uri.Builder();
+            builder.scheme(mContext.getPackageName());
+            Uri    uri    = builder.build();
+            Intent intent = new Intent(DownloadManager.ACTION_CANCEL);
+            intent.setData(uri);
+            intent.putExtra(DownloadManager.ACTION_CANCEL, mEntity);
+            mContext.sendBroadcast(intent);
+        }
     }
 
     /**
@@ -83,7 +108,7 @@ public class Task {
         DownloadEntity downloadEntity;
 
         public DownloadListener(Context context, DownloadEntity downloadEntity,
-                                Handler outHandler) {
+                Handler outHandler) {
             this.context = context;
             this.outHandler = outHandler;
             this.downloadEntity = downloadEntity;
@@ -167,7 +192,8 @@ public class Task {
         }
 
         private void sendIntent(String action, long location) {
-            downloadEntity.save();
+            downloadEntity.setCurrentProgress(location);
+            downloadEntity.update();
             Uri.Builder builder = new Uri.Builder();
             builder.scheme(context.getPackageName());
             Uri    uri    = builder.build();
@@ -202,12 +228,11 @@ public class Task {
             return this;
         }
 
-        public Task builder() {
+        public Task build() {
-            Task task = new Task();
+            Task task = new Task(context, downloadEntity);
-            task.context = context;
+            task.mListener = listener;
-            task.downloadEntity = downloadEntity;
+            task.mOutHandler = outHandler;
-            task.listener = listener;
+            downloadEntity.save();
-            task.outHandler = outHandler;
             return task;
         }
     }

downloadutil/src/main/java/com/arialyy/downloadutil/util/Util.java

@@ -103,6 +103,17 @@ public class Util {
         return arrays[arrays.length - 1];
     }
 
+    /**
+     * 获取对象名
+     *
+     * @param clazz clazz
+     * @return 对象名
+     */
+    public static String getClassName(Class clazz) {
+        String arrays[] = clazz.getName().split("\\.");
+        return arrays[arrays.length - 1];
+    }
+
     /**
      * 格式化文件大小
      *