package com.pinecone.technology.mcommerce.learning.android.chapter06;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
public class ThreadActivity extends Activity {
private static final String TAG = "ThreadActivity";
private Button button1;
private Button button2;
private TextView textView1;
private Button button3;
private TextView textView;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.c06_thread);
button1 = (Button) findViewById(R.id.button1);
button1.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
updateUI("开始一个耗时操作");
updateUI(doLongOperation());
}
});
button2 = (Button) findViewById(R.id.button2);
button2.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
updateUI("开始一个耗时操作");
(new Thread(new Runnable() {
@Override
public void run() {
updateUI(doLongOperation());
}
})).start();
}
});
button3 = (Button) findViewById(R.id.button3);
button3.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
updateUI("开始一个耗时操作");
(new Thread(new Runnable() {
private String result;
@Override
public void run() {
// TODO Auto-generated method stub
result = doLongOperation();
runOnUiThread(new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
updateUI(result);
}
});
}
})).start();
}
});
}
public void updateUI(String str) {
textView = (TextView) findViewById(R.id.textView1);
textView.setText(str);
}
public String doLongOperation() {
try {
Thread.sleep(10000);
} catch (InterruptedException e) {
e.printStackTrace();
}
return "结束操作";
}
private void log(String msg) {
Log.d(TAG, msg);
}
}