Android 线程

package cn.xsm.hero;

import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.view.View.OnClickListener;

public class AndroidThreadActivity extends Activity {
/** Called when the activity is first created. */
private Button buttonOk;
private EditText editTextRsult;
private int counts = 0;
public Handler handler;

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
editTextRsult = (EditText) this.findViewById(R.id.editTextResult);
buttonOk = (Button) this.findViewById(R.id.buttonOk);
buttonOk.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
counts++;
getResult();
}

});

handler = new Handler() {
@Override
public void handleMessage(Message msg) {
if (msg.what == 0) {
String v = (String) msg.obj;
String ss = editTextRsult.getText().toString();
editTextRsult.setText(ss + " -- " + v);
}
}
};

}

public void getResult() {
// 启动文件下载线程
new MyThread(counts).start();
}

public class MyThread extends Thread {
private int counts = 0;

public MyThread(int c) {
counts = c;
}

@Override
public void run() {
try {
Thread.sleep(2000);
} catch (Exception e) {
}
Message msg = Message.obtain();
msg.what = 0;
msg.obj = Integer.toString(counts);
handler.sendMessage(msg);
}
}
}

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