app状态监听广播

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="xidian.dy.com.chujia">
    <uses-permission android:name="android.permission.RECEIVE_SMS"/>
    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity
            android:name=".MainActivity"
            android:label="主界面">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <receiver android:name=".SDstatusReceiver">
            <intent-filter>
                <action android:name="android.intent.action.PACKAGE_ADDED"/>
                <action android:name="android.intent.action.PACKAGE_CHANGED"/>
                <action android:name="android.intent.action.PACKAGE_REMOVED"/>
                <data android:scheme="package"/>
            </intent-filter>
        </receiver>
    </application>
</manifest>

package xidian.dy.com.chujia;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.widget.Toast;

/**
 * Created by dy on 2016/7/12.
 */
public class APPstatusReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        //判断收到的广播类型
        String action = intent.getAction();
        Uri uri = intent.getData();
        if("android.intent.action.PACKAGE_ADDED".equals(action)){
            Toast.makeText(context,uri.toString() + "被安装", Toast.LENGTH_LONG).show();
        }
        else if("android.intent.action.PACKAGE_CHANGED".equals(action)){
            Toast.makeText(context, uri.toString()+ "被更新了", Toast.LENGTH_SHORT).show();
        }
        else if("android.intent.action.PACKAGE_REMOVED".equals(action)){
            Toast.makeText(context, uri.toString() + "被卸载", Toast.LENGTH_SHORT).show();
        }
    }
}