android 应用程序可能在它的主线程上做太多工作。怎么解决

Question

public class MainActivity extends Activity {
private boolean suspend = true;
@Override
protected void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    final ImageView imageView = (ImageView) findViewById(R.id.image);
    imageView.setBackgroundResource(R.drawable.imagelong2);
    final ClipDrawable drawable = (ClipDrawable) imageView.getDrawable();
    ToggleButton toggleButton = (ToggleButton) findViewById(R.id.togbtn);
    toggleButton.setText("播放");
    toggleButton.setTextOn("暂停");
    toggleButton.setTextOff("播放");
    toggleButton.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
        @Override
        public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
            if (suspend == true) {
                //获取图片所显示的ClipDrawable对象

                final Handler handler = new Handler() {
                    @Override
                    public void handleMessage(Message msg) {
                        // TODO Auto-generated method stub
                        if (msg.what == 0x123) {
                            drawable.setLevel(drawable.getLevel() + 1);
                        }
                    }
                };
                final Timer timer = new Timer();
                timer.schedule(new TimerTask() {
                    @Override
                    public void run() {
                        Message msg = new Message();
                        msg.what = 0x123;
                        handler.sendMessage(msg);
                        if (drawable.getLevel() >= 10000) {
                            timer.cancel();
                        }
                    }
                }, 0, 1);

                suspend = false;
                if (suspend == false) {
                    try {
                        Thread.sleep(2000);
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }
                suspend = true;

            }

        }
    });
}

}

写了一个 ClipDrawable的进度条 想控制暂停让线程等待出现错误Skipped 127 frames! The application may be doing too much work on its main thread. 只有加了Thread.sleep(2000);以后在有这个问题，会很卡，请问我这个要怎么改啊

Answer 1

setContentView(R.layout.activity_main);
final ImageView imageView = (ImageView) findViewById(R.id.image);
imageView.setBackgroundResource(R.drawable.imagelong2);
final ClipDrawable drawable = (ClipDrawable) imageView.getDrawable();
ToggleButton toggleButton = (ToggleButton) findViewById(R.id.togbtn);
toggleButton.setText("播放");
toggleButton.setTextOn("暂停");
toggleButton.setTextOff("播放");

    final Handler handler = new Handler() {
        @Override
        public void handleMessage(Message msg) {
            if (msg.what == 0x123) {
                drawable.setLevel(drawable.getLevel() + 1);
                if (drawable.getLevel() >= 10000) {
                    //不再发送message
                } else{
                    Message nextMsg = Message.obtain(this, 0x123);
                    sendMessage(nextMsg);
                }
            }
        }
    };
    toggleButton.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
        @Override
        public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
            //获取图片所显示的ClipDrawable对象
            Message nextMsg = Message.obtain(handler, 0x123);
            handler.sendMessage(nextMsg);
        }
    });

修改成这样试试