package com.example.mydemo01;
import java.util.Timer;
import java.util.TimerTask;
import android.os.Bundle;
import android.os.Handler;
import android.app.Activity;
import android.util.Log;
import android.view.Menu;
import android.widget.TextView;
public class MyMain extends Activity {
private TextView tv1;
private int count;
private final Handler mHandler = new Handler() {
public void handleMessage(android.os.Message msg) {
switch (msg.what) {
case 1:
tv1.setText("count:" + count);
count++;
break;
default:
break;
}
};
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_my_main);
tv1 = (TextView) findViewById(R.id.textView1);
}
@Override
protected void onResume() {
count = 0;
// myPost();//error
// new MyThread().start();//ok
// myNewTNewR();//error
// new MyRunnable().run();//error
// myTimer();//ok
// myDirectFor();//error
/** ERROR
* Thread MyBitThread = new Thread(){
public void run() {
for (int i = 0; i < 99999; i++) {
Log.d("linsen", "i=" + i);
mHandler.sendEmptyMessage(1);
}
};
};
MyBitThread.start();*/
new MyBigThread().start();
super.onResume();
}
class MyBigThread extends Thread{
@Override
public void run() {
for (int i = 0; i < 99999; i++) {
Log.d("linsen", "i=" + i);
mHandler.sendEmptyMessage(1);
}
super.run();
}
}
private void myDirectFor() {
for (int i = 0; i < 99999; i++) {
Log.d("linsen", "i=" + i);
mHandler.sendEmptyMessage(1);
// runOnUiThread(new Runnable() {
//
// @Override
// public void run() {
// // tv1.setText("count:" + count);
// // count++;//error
//
// mHandler.sendEmptyMessage(1);
//
// }
// });
}
}
private void myTimer() {
new Timer().schedule(new TimerTask() {
@Override
public void run() {
for (int i = 0; i < 50; i++) {
Log.d("linsen", "i=" + i);
try {
Thread.sleep(500);
} catch (InterruptedException e) {
e.printStackTrace();
}
mHandler.sendEmptyMessage(1);
}
}
}, 500, 500);
}
class MyThread extends Thread {
@Override
public void run() {
for (int i = 0; i < 50; i++) {
Log.d("linsen", "i=" + i);
try {
Thread.sleep(500);
} catch (InterruptedException e) {
e.printStackTrace();
}
mHandler.sendEmptyMessage(1);
}
super.run();
}
}
class MyRunnable implements Runnable {
@Override
public void run() {
for (int i = 0; i < 50; i++) {
Log.d("linsen", "i=" + i);
try {
Thread.sleep(500);
} catch (InterruptedException e) {
e.printStackTrace();
}
mHandler.sendEmptyMessage(1);
}
}
}
private void myNewTNewR() {
Thread t = new Thread(new Runnable() {
public void run() {
for (int i = 0; i < 20; i++) {
Log.d("linsen", "i=" + count);
try {
Thread.sleep(500);
} catch (InterruptedException e) {
e.printStackTrace();
}
// tv1.setText("count:" + count);
// count++;
mHandler.sendEmptyMessage(1);
}
}
});
t.start();
}
private void myPost() {
mHandler.post(new Runnable() {
@Override
public void run() {
for (int i = 0; i < 20; i++) {
Log.d("linsen", "i=" + count);
try {
Thread.sleep(500);
} catch (InterruptedException e) {
e.printStackTrace();
}
tv1.setText("count:" + count);
count++;
}
}
});
}
private void myRunOnUiThread() {
runOnUiThread(new Runnable() {
@Override
public void run() {
// try {
// this.wait(1000);
// } catch (InterruptedException e) {
// // TODO Auto-generated catch block
// e.printStackTrace();
// }
for (int i = 0; i < 10; i++) {
tv1.setText("count:" + count);
count++;
}
}
});
}
}
