Android 定时器demo
注意点:
1:必须创建一个新对象来同步
2:New Thread中需要用post对原线程中的对象进行操作
3:在New Thread中用 wait进行定时
package com.example.appc;
import android.os.Bundle;
import android.app.Activity;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
public class MainActivity extends Activity {
Button startButton ;
TextView minuteTextView ;
//contorl bool www.zzzyk.com
static boolean sign = false;
Clock c = new Clock();
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
startButton = (Button)findViewById(R.id.button1);
minuteTextView = (TextView)findViewById(R.id.textView1);
startButton.setOnClickListener(new MyButtonListener());
}
class MyButtonListener implements OnClickListener{
public void onClick(View v) {
sign = !sign;
if(sign == false) return;
new Thread(new Runnable() {
public void run() {
while( sign ){
try{
synchronized (c) {
minuteTextView.post(new Runnable() {
public void run() {
minuteTextView.setText("99");
}
});
c.wait(500L);
minuteTextView.post(new Runnable() {
public void run() {
minuteTextView.setText("0");
}
});
c.wait(500L);
}
}catch(InterruptedException e){
}
}
}
}).start();
}
}
public class Clock {
int justATmp = 0;
}
}
补充:移动开发 , Android ,