使用Android Service簡單啟動Thread操作

1.AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.app"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="15"
        android:targetSdkVersion="15" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.example.app.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="CountService" />
    </application>

</manifest>

2.CountService.java

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

public class CountService extends Service {

private boolean threadDisable;

private int count;

@Override
public IBinder onBind(Intent intent) {
return null;
}

@Override
public void onCreate() {
super.onCreate();
new Thread(new Runnable() {

@Override
public void run() {
while (!threadDisable) {
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
}
count++;
Log.v("CountService", "Count is " + count);
}
}
}).start();
}

@Override
public void onDestroy() {
super.onDestroy();
this.threadDisable = true;
Log.v("CountService", "on destroy");
}

public int getCount() {
return count;
}
}

3.MainActivity.java

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;

public class MainActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

this.startService(new Intent(this, CountService.class));
}

@Override
protected void onDestroy() {
super.onDestroy();
this.stopService(new Intent(this, CountService.class));
}
}