Android HandlerThread 完全解析

源码分析：

public class HandlerThread extends Thread {

int mPriority;
int mTid = -1;
Looper mLooper;

public HandlerThread(String name) {
super(name);
mPriority = Process.THREAD_PRIORITY_DEFAULT;
}

总结：里面做了线程优先级的处理，主要是封装了looper，不用自己调用Looper的方法

场景：用于做完一件事，做另外一件事。

private HandlerThread mHandlerThread = new HandlerThread("DownloadManager");

private DownloadManager(Context context) {
this.mContext = context.getApplicationContext();
downloadDbHelper = DownloadDbHelper.getInstance(context);
ApkHelper.getInstance(mContext).registListener(this);
mHandlerThread.start();
mHandler = new Handler(mHandlerThread.getLooper());
}

/** 初始化下载列表 */
public void initDownloadTasks() {
mHandler.post(new Runnable() {
@Override
public void run() {
synchronized (TAG) {
if (!isInitFinish.get()) {
long startTime = System.currentTimeMillis();
List<DownloadTask<BaseFileModel>> all = downloadDbHelper.queryAll();
downloadTasks.clear();
downloadTasks.addAll(all);
restoreState();
delFailureTimeTask();
isInitFinish.set(true);
CXLog.d(TAG, "use time---->" + (System.currentTimeMillis() - startTime));
CXLog.d(TAG, "download size--->" + downloadTasks.size());
//更多页面的游戏插件预下载
//                        downLoadGameAppAll(mContext, instance);
}
}

}
});

}