android的Service的实例

2024-12-15 技术教程

package com.android.service;

import android.app.IntentService;
import android.content.Intent;

public class HelloIntentService extends IntentService{

public HelloIntentService() {
super("HelloIntentService");
// TODO Auto-generated constructor stub
}

@Override
protected void onHandleIntent(Intent intent) {
// TODO Auto-generated method stub
System.out.println("休息8秒");

try{
Thread.sleep(8000);
}catch(InterruptedException e){
e.printStackTrace();
}
}

public void onDestory(){
System.out.println("执行onHandleIntent之后会自动调用！");
super.onDestroy();

}

}

package com.android.service;

import android.app.Service;
import android.content.Intent;
import android.os.IBinder;

public class HelloService extends Service{

@Override
public IBinder onBind(Intent intent) {
// TODO Auto-generated method stub
return null;
}

public void onCreate(){
super.onCreate();

}

public void onDestory(){

super.onDestroy();

}

public void onStart(Intent intent,int startId) {
// TODO Auto-generated method stub
System.out.println("启动Service,休眠10秒");

try{
Thread.sleep(8000);
}catch(InterruptedException e){
e.printStackTrace();
}
}

}

package com.android.service;

import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class MainActivity extends Activity {

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button button=(Button)findViewById(R.id.button1);
button.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent intent=new Intent(
MainActivity.this,HelloIntentService.class);
startService(intent);
}
});

Button button2=(Button)findViewById(R.id.button2);
button.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent intent=new Intent(
MainActivity.this,HelloIntentService.class);
stopService(intent);
}
});

Button button3=(Button)findViewById(R.id.button3);
button.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent intent=new Intent(
MainActivity.this,HelloService.class);
startService(intent);
}
});

}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}

}