标签：实时 als ibinder context his extras putextra exception 界面
转自
http://www.cnblogs.com/linjiqin/p/3147764.html
演示一个案例，需求如下：
在Service组件中创建一个线程，该线程用来生产数值，每隔1秒数值自动加1，然后把更新后的数值在界面上实时显示。
步骤如下：
1、新建一个android项目工程，取名为demo。
2、新建一个Service类，用来实时生产数值，供界面实时显示。
package com.ljq.activity;
import android.app.Service;
import android.content.Intent;
import android.os.IBinder;
import android.util.Log;
public class CountService extends Service {
private int count = 0;
private boolean threadDisable=false;
@Override
public 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.ljq.activity.CountService");
sendBroadcast(intent);
}
}
}).start();
}
@Override
public IBinder onBind(Intent intent) {
return null;
}
@Override
public void onDestroy() {
super.onDestroy();
count=0;
threadDisable = true;
Log.v("CountService", "on destroy");
}
}
3、新建一个Activity类，显示数据。
package com.ljq.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, CountService.class));
//注册广播接收器
receiver=new MyReceiver();
IntentFilter filter=new IntentFilter();
filter.addAction("com.ljq.activity.CountService");
MainActivity.this.registerReceiver(receiver,filter);
}
@Override
protected void onDestroy() {
//结束服务
stopService(new Intent(MainActivity.this, CountService.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.ljq.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 =".CountService" /> </application> <uses-sdk android:minSdkVersion="7" /> </manifest>
标签：实时 als ibinder context his extras putextra exception 界面
原文地址：http://www.cnblogs.com/zhangminghan/p/6236229.html
