Android中Service实时数据交互

1、新建一个android项目工程，取名为DemoTest。

2、新建一个Service类，用来实时生产数值，供界面实时显示。package com.Test.activity;import android.app.Servi艘早祓胂ce;import android.content.Intent;import android.os.IBinder;import android.util.Log;public class CountDataService extends Service {private int count = 0;private boolean threadDisable=false;@Overridepublic void onCreate() {super.onCreate();new Thread(new Runnable() { @Override public void run() { while (!threadDisable) { try { Thread.sleep(1000); } catch (InterruptedException e) { e.printStackTrace(); } count++; Log.v("CountService", "Count is " + count); //发送广播 Intent intent=new Intent(); intent.putExtra("count", count); intent.setAction("com.Test.activity.CountService"); sendBroadcast(intent); } }}).start();}@Overridepublic IBinder onBind(Intent intent) {return null;}@Overridepublic void onDestroy() {super.onDestroy();count=0;threadDisable = true;Log.v("CountService", "on destroy");}}

3、新建一个Activity类，用于接受并显示数据。package com.Test.activity;import android.app.Activity;import android.content.BroadcastReceiver;import android.content.Context;import android.content.Intent;import android.content.IntentFilter;import android.os.Bundle;import android.view.View;import android.widget.Button;import android.widget.EditText;public class MainActivity extends Activity {private EditText editText=null;private MyReceiver receiver=null; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); editText=(EditText)findViewById(R.id.editText); //启动服务 startService(new Intent(MainActivity.this, CountDataService .class));//注册广播接收器receiver=new MyReceiver();IntentFilter filter=new IntentFilter();filter.addAction("com.Test.activity.CountDataService ");MainActivity.this.registerReceiver(receiver,filter); } @Overrideprotected void onDestroy() { //结束服务 stopService(new Intent(MainActivity.this, CountDataService .class));super.onDestroy(); } /** * 获取广播数据 * * @author jiqinlin * */ public class MyReceiver extends BroadcastReceiver { @Override public void onReceive(Context context, Intent intent) { Bundle bundle=intent.getExtras(); int count=bundle.getInt("count"); editText.setText(count+""); } }}

4、main.xml布局文件<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"android:orientation="vertical"android:layout_width="fill_parent"android:layout_height="fill_parent"> <EditText android:layout_width="fill_parent" android:layout_height="wrap_content" android:cursorVisible="false" android:editable="false" android:id="@+id/editText"/></LinearLayout>

5、清单文件<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.Test.activity" android:versionCode="1" android:versionName="1.0"> <application android:icon="@drawable/icon" android:label="@string/app_name"> <activity android:name=".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 =".DataCountService" /> </application> <uses-sdk android:minSdkVersion="7" /></manifest>