package com.zxx.handler;
import android.R.integer;
import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.ImageView;
import android.widget.TextView;
public class MainActivity extends Activity {
private TextView tvTextView;
private ImageView ivImageView;
private int index;
private MyRunnable mrMyRunnable = new MyRunnable();
private Handler mHandler = new Handler();
private int images[] = {R.drawable.ic_launcher,R.drawable.ic_launcher1};
class MyRunnable implements Runnable{
@Override
public void run() {
// TODO Auto-generated method stub
index++;
index=index%3;
ivImageView.setImageResource(images[index]);
mHandler.postDelayed(mrMyRunnable, 1000);
}
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
tvTextView = (TextView) findViewById(R.id.tv1);
ivImageView = (ImageView)findViewById(R.id.imageView1);
mHandler.postDelayed(mrMyRunnable, 1000);
// new Thread(){
// public void run() {
// try {
// Thread.sleep(1000);
// mHandler.post(new Runnable() {
//
// @Override
// public void run() {
// // TODO Auto-generated method stub
// tvTextView.setText("用handler更新了ui");
//
// }
// });
// } catch (InterruptedException e) {
// // TODO Auto-generated catch block
// e.printStackTrace();
// }
// };
// }.start();
}
}