DownloadTarget 添加获取任务进度百分比接口

Aria/src/main/java/com/arialyy/aria/core/download/DownloadTarget.java

@@ -66,6 +66,19 @@ public class DownloadTarget extends AbsTarget<DownloadEntity, DownloadTaskEntity
     return this;
   }
 
+  @Override public int getPercent() {
+    DownloadEntity entity = DownloadEntity.findData(DownloadEntity.class, "downloadUrl=?",
+        this.entity.getDownloadUrl());
+    if (entity == null) {
+      Log.e("DownloadTarget", "下载管理器中没有该任务");
+      return 0;
+    }
+    if (entity.getFileSize() != 0) {
+      return (int) (entity.getCurrentProgress() * 100 / entity.getFileSize());
+    }
+    return super.getPercent();
+  }
+
   /**
    * 给url请求添加头部
    *

Aria/src/main/java/com/arialyy/aria/core/inf/AbsTarget.java

@@ -108,6 +108,15 @@ public class AbsTarget<ENTITY extends IEntity, TASK_ENTITY extends ITaskEntity>
     return false;
   }
 
+  /**
+   * 获取任务进度百分比
+   *
+   * @return 返回任务进度
+   */
+  protected int getPercent() {
+    return 0;
+  }
+
   /**
    * 获取当前任务进度，如果任务存在，则返回当前进度
    *
@@ -118,14 +127,16 @@ public class AbsTarget<ENTITY extends IEntity, TASK_ENTITY extends ITaskEntity>
       DownloadEntity entity = DownloadEntity.findData(DownloadEntity.class, "downloadUrl=?",
           ((DownloadEntity) this.entity).getDownloadUrl());
       if (entity == null) {
-        throw new NullPointerException("下载管理器中没有该任务");
+        Log.e("DownloadTarget", "下载管理器中没有该任务");
+        return -1;
       }
       return entity.getCurrentProgress();
     } else if (entity instanceof UploadEntity) {
       UploadEntity entity = DbEntity.findData(UploadEntity.class, "filePath=?",
           ((UploadEntity) this.entity).getFilePath());
       if (entity == null) {
-        throw new NullPointerException("没有找到该任务");
+        Log.e("DownloadTarget", "下载管理器中没有该任务");
+        return -1;
       }
       return entity.getCurrentProgress();
     }