Android 开启子线程简单流程

private class DownLoadThread extends Thread {
@Override
public void run() {
Message message = new Message();
message.what = 0;
handler.sendMessage(message);
}
}

private final Handler handler = new Handler() {
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case 0:
//处理任务，如更新UI
break;
case 1:
break;
default:
break;
}
}
};

Message message = new Message();
message.what = 0;
handler.sendMessage(message);

new DownLoadThread().start();