android Bound Service使用:继续Binder类绑定服务

activity_main.xml:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:paddingBottom="@dimen/activity_vertical_margin"    android:paddingLeft="@dimen/activity_horizontal_margin"    android:paddingRight="@dimen/activity_horizontal_margin"    android:paddingTop="@dimen/activity_vertical_margin"    tools:context=".MainActivity" >   <Button android:id="@+id/current_time"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="当前时间"        android:textColor="@android:color/white"        android:textSize="25dp"/></RelativeLayout>

CurrentTimeService.java:

package com.example.demoboundservice;import android.app.Service;import android.content.Intent;import android.os.Binder;import android.os.IBinder;import android.text.format.Time;public class CurrentTimeService extends Service{private final IBinder binder = new LocalBinder();public class LocalBinder extends Binder{CurrentTimeService getService(){return CurrentTimeService.this;}}public IBinder onBind(Intent intent){return binder;}public String getCurrentTime(){Time time = new Time();time.setToNow();String currentTime = time.format("%Y-%m-%d %H:%M:%S");return currentTime;}}

MainActivity.java:

package com.example.demoboundservice;import com.example.demoboundservice.CurrentTimeService.LocalBinder;import android.app.Activity;import android.content.ComponentName;import android.content.Intent;import android.content.ServiceConnection;import android.os.Bundle;import android.os.IBinder;import android.view.Menu;import android.view.View;import android.widget.Button;import android.widget.Toast;public class MainActivity extends Activity {@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);}CurrentTimeService cts ;boolean bound;protected void onStart(){super.onStart();Button button = (Button)findViewById(R.id.current_time);button.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View view) {Intent intent = new Intent(MainActivity.this,CurrentTimeService.class);bindService(intent,sc,BIND_AUTO_CREATE);if(bound){Toast.makeText(MainActivity.this, cts.getCurrentTime(), Toast.LENGTH_LONG).show();}}});}protected void onStop(){super.onStop();if(bound){bound  = false;unbindService(sc);}}private ServiceConnection sc = new ServiceConnection(){public void onServiceDisconnected(ComponentName name){bound = false;}public void onServiceConnected(ComponentName name,IBinder service){LocalBinder binder  =(LocalBinder)service;cts = binder.getService();bound = true;}};}

AndroidManifest.xml:

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"    package="com.example.demoboundservice"    android:versionCode="1"    android:versionName="1.0" >    <uses-sdk        android:minSdkVersion="8"        android:targetSdkVersion="19" />    <application        android:allowBackup="true"        android:icon="@drawable/ic_launcher"        android:label="@string/app_name"        android:theme="@style/AppTheme" >        <activity            android:name="com.example.demoboundservice.MainActivity"            android:label="@string/app_name" >            <intent-filter>                <action android:name="android.intent.action.MAIN" />                <category android:name="android.intent.category.LAUNCHER" />            </intent-filter>        </activity>                <service android:name="com.example.demoboundservice.CurrentTimeService"/>    </application></manifest>