PackageBroadcastReceiver 구현

 private class PackageBroadcastReceiver extends BroadcastReceiver {

  @Override
  public void onReceive(Context context, Intent intent) {

   if (intent != null) {
    String packageName = intent.getData().getSchemeSpecificPart();
    Log.w(TAG, "onReceive() packageName : " + packageName);

    if (Intent.ACTION_PACKAGE_ADDED.equalsIgnoreCase(intent.getAction())) {
     Log.w(TAG, "onReceive() ACTION_PACKAGE_ADDED");
    } else if (Intent.ACTION_PACKAGE_CHANGED.equalsIgnoreCase(intent.getAction())) {
     Log.w(TAG, "onReceive() ACTION_PACKAGE_CHANGED");
    } else if (Intent.ACTION_PACKAGE_DATA_CLEARED.equalsIgnoreCase(intent.getAction())) {
     Log.w(TAG, "onReceive() ACTION_PACKAGE_DATA_CLEARED");
    } else if (Intent.ACTION_PACKAGE_INSTALL.equalsIgnoreCase(intent.getAction())) {
     Log.w(TAG, "onReceive() ACTION_PACKAGE_INSTALL");
    } else if (Intent.ACTION_PACKAGE_REMOVED.equalsIgnoreCase(intent.getAction())) {
     Log.w(TAG, "onReceive() ACTION_PACKAGE_REMOVED");
    } else if (Intent.ACTION_PACKAGE_REPLACED.equalsIgnoreCase(intent.getAction())) {
     Log.w(TAG, "onReceive() ACTION_PACKAGE_REPLACED");
    } else if (Intent.ACTION_PACKAGE_RESTARTED.equalsIgnoreCase(intent.getAction())) {
     Log.w(TAG, "onReceive() ACTION_PACKAGE_RESTARTED");
    }
   }
  }
 }

registerReceiver

  mPackageBroadcastReceiver = new PackageBroadcastReceiver();
  IntentFilter intentFilter = new IntentFilter();
  intentFilter.addAction(Intent.ACTION_PACKAGE_ADDED);
  intentFilter.addAction(Intent.ACTION_PACKAGE_CHANGED);
  intentFilter.addAction(Intent.ACTION_PACKAGE_DATA_CLEARED);
  intentFilter.addAction(Intent.ACTION_PACKAGE_INSTALL);
  intentFilter.addAction(Intent.ACTION_PACKAGE_REMOVED);
  intentFilter.addAction(Intent.ACTION_PACKAGE_REPLACED);
  intentFilter.addAction(Intent.ACTION_PACKAGE_RESTARTED);
  intentFilter.addDataScheme("package");
  registerReceiver(mPackageBroadcastReceiver, intentFilter);

unregisterReceiver

  if (mPackageBroadcastReceiver != null) {
   try {
    unregisterReceiver(mPackageBroadcastReceiver);
    mPackageBroadcastReceiver = null;
   } catch (Exception e) {
    e.printStackTrace();
   }
  }

manifest 등록

        <receiver android:name=".PackageBroadcastReceiver" >
            <intent-filter>
                <action android:name="android.intent.action.ACTION_PACKAGE_ADDED" />
                <action android:name="android.intent.action.ACTION_PACKAGE_CHANGED" />
                <action android:name="android.intent.action.ACTION_PACKAGE_DATA_CLEARED" />
                <action android:name="android.intent.action.ACTION_PACKAGE_INSTALL" />
                <action android:name="android.intent.action.ACTION_PACKAGE_REMOVED" />
                <action android:name="android.intent.action.ACTION_PACKAGE_REPLACED" />
                <action android:name="android.intent.action.ACTION_PACKAGE_RESTARTED" />
                <data android:scheme="package"/>
            </intent-filter>
        </receiver> 

주의 : data scheme를 반드시 설정해야 한다.