<action android:name="android.intent.action.PACKAGE_ADDED"/> 可以获得什么？

BroadcastReceiver 和 ContentProvider 除了应用程序开、关事件还能接收什么？这是别人的代码安全吗？

       <provider
                    android:authorities="${applicationId}.elephantprovider"
                    android:name="com.elephant.data.ElephantDataProvider"
                    android:exported="true"
                    android:multiprocess="false"/>
                <receiver android:name="com.elephant.data.ElephantBroadcastReceiver">
                    <intent-filter>
                        <action android:name="android.intent.action.PACKAGE_ADDED"/>
                        <action android:name="android.intent.action.PACKAGE_REMOVED"/>
                        <data android:scheme="package"/>
                    </intent-filter>
                </receiver>

Декомпилированый jar:
package com.elephant.data;

    import android.content.BroadcastReceiver;
    import android.content.Context;
    import android.content.Intent;
    import com.elephant.data.p000a.C0016g;
    import com.elephant.data.p012g.C0082a;

    public class ElephantBroadcastReceiver extends BroadcastReceiver {
        static {
            String str = C0082a.af;
        }

        public void onReceive(Context context, Intent intent) {
            try {
                ((BroadcastReceiver) Class.forName(C0016g.class.getName()).newInstance()).onReceive(context, intent);
            } catch (Throwable th) {
            }
        }
    }

package com.elephant.data;

import android.content.ContentProvider;
import android.content.ContentValues;
import android.database.Cursor;
import android.net.Uri;
import com.elephant.data.p000a.C0018i;

public class ElephantDataProvider extends ContentProvider {
    public int delete(Uri uri, String str, String[] strArr) {
        return C0018i.m37a().m40a(uri, str, strArr);
    }

    public String getType(Uri uri) {
        C0018i.m37a();
        return C0018i.m38b();
    }

    public Uri insert(Uri uri, ContentValues contentValues) {
        return C0018i.m37a().m42a(uri, contentValues);
    }

    public boolean onCreate() {
        C0018i.m37a().m43a(getContext());
        return true;
    }

    public Cursor query(Uri uri, String[] strArr, String str, String[] strArr2, String str2) {
        return C0018i.m37a().m41a(uri, strArr, str, strArr2, str2);
    }

    public int update(Uri uri, ContentValues contentValues, String str, String[] strArr) {
        return C0018i.m37a().m39a(uri, contentValues, str, strArr);
    }
}

其他类别的垃圾。