MainActivity.java
package com.example.day23_service_demo3;
import com.example.day23_service_demo3.MyService.MyBinder;
import android.app.Activity;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.ServiceConnection;
import android.os.Bundle;
import android.os.IBinder;
import android.view.View;
import android.widget.TextView;
public class MainActivity extends Activity {
private MyServiceConn conn;
private TextView tv;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
conn = new MyServiceConn();
tv = (TextView) findViewById(R.id.tv);
}
//绑定服务
public void MyBindServiceClick(View v){
Intent intent = new Intent(MainActivity.this, MyService.class);
/**
* 参数1:intent对象 指明绑定的组件
* 参数2:当前服务的链接状态
* 参数3:绑定服务的标记 :绑定且创建
*/
bindService(intent, conn, Context.BIND_AUTO_CREATE);
}
//解除绑定服务
public void MyUnBindServiceClick(View v){
unbindService(conn);
}
/**
* 创建服务的链接对象 MyServiceConn
* @author sxy
*
*/
class MyServiceConn implements ServiceConnection{
/**
* 表示当前服务连接成功后回调此方法
* 参数1:组件名称
* 参数2:连接后onBind() 返回的对象
*/
@Override
public void onServiceConnected(ComponentName name, IBinder service) {
// TODO Auto-generated method stub
MyBinder myBinder = (MyBinder) service;
//获取到Service对象
MyService myService = myBinder.getService();
int num = myService.getRandom();
tv.setText(num+"");
}
/**
* 失去连接回调此方法
*/
@Override
public void onServiceDisconnected(ComponentName name) {
// TODO Auto-generated method stub
conn = null;
}
}
}
MyService.java
package com.example.day23_service_demo3;
import android.app.Service;
import android.content.Intent;
import android.os.Binder;
import android.os.IBinder;
import android.util.Log;
public class MyService extends Service{
private static final String TAG ="MyService";
/**
* 必须实现的方法 绑定服务时调用的方法
*/
@Override
public IBinder onBind(Intent intent) {
// TODO Auto-generated method stub
Log.e(TAG , "===onBind===");
return new MyBinder();
}
//创建MyBinder类 将MyBinder传递给 绑定源 Service 不能直接去new 通过传递才可以
public class MyBinder extends Binder{
public MyService getService(){
return MyService.this;
}
}
/**
* 随机数
* @return
*/
public int getRandom(){
return (int) (Math.random()*10+1);
}
/**
* 表示服务创建时调用
*/
@Override
public void onCreate() {
// TODO Auto-generated method stub
super.onCreate();
Log.e(TAG , "===onCreate===");
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
// TODO Auto-generated method stub
Log.e(TAG , "===onStartCommand===");
return START_NOT_STICKY;
}
/**
* 解除绑定时 调用此方法
*/
@Override
public boolean onUnbind(Intent intent) {
// TODO Auto-generated method stub
Log.e(TAG , "===onUnbind===");
return super.onUnbind(intent);
}
/**
* Service销毁时调用此方法
*/
@Override
public void onDestroy() {
// TODO Auto-generated method stub
super.onDestroy();
Log.e(TAG , "===onDestroy===");
}
}
清单文件
AndroidManifest.xml
package com.example.day23_service_demo3;
import android.app.Service;
import android.content.Intent;
import android.os.Binder;
import android.os.IBinder;
import android.util.Log;
public class MyService extends Service{
private static final String TAG ="MyService";
/**
* 必须实现的方法 绑定服务时调用的方法
*/
@Override
public IBinder onBind(Intent intent) {
// TODO Auto-generated method stub
Log.e(TAG , "===onBind===");
return new MyBinder();
}
//创建MyBinder类 将MyBinder传递给 绑定源 Service 不能直接去new 通过传递才可以
public class MyBinder extends Binder{
public MyService getService(){
return MyService.this;
}
}
/**
* 随机数
* @return
*/
public int getRandom(){
return (int) (Math.random()*10+1);
}
/**
* 表示服务创建时调用
*/
@Override
public void onCreate() {
// TODO Auto-generated method stub
super.onCreate();
Log.e(TAG , "===onCreate===");
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
// TODO Auto-generated method stub
Log.e(TAG , "===onStartCommand===");
return START_NOT_STICKY;
}
/**
* 解除绑定时 调用此方法
*/
@Override
public boolean onUnbind(Intent intent) {
// TODO Auto-generated method stub
Log.e(TAG , "===onUnbind===");
return super.onUnbind(intent);
}
/**
* Service销毁时调用此方法
*/
@Override
public void onDestroy() {
// TODO Auto-generated method stub
super.onDestroy();
Log.e(TAG , "===onDestroy===");
}
}