LocalReceiverActivity.java

/*
 * Copyright (C) 2014 AChep@xda <artemchep@gmail.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 * MA  02110-1301, USA.
 */
package com.achep.acdisplay.receiver;

import android.app.Activity;
import android.app.admin.DevicePolicyManager;
import android.content.ActivityNotFoundException;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.provider.Settings;
import android.support.annotation.Nullable;
import android.util.Log;

import com.achep.acdisplay.R;
import com.achep.base.utils.PackageUtils;
import com.achep.base.utils.ToastUtils;

/**
 * Created by Artem on 12.03.14.
 */
public class LocalReceiverActivity extends Activity {

    private static final String TAG = "LocalReceiverActivity";

    private static final String HOST_UNINSTALL = "uninstall";
    private static final String HOST_LAUNCH_APP_INFO = "launch_app_info";
    private static final String HOST_REMOVE_ADMIN_ACCESS = "remove_admin_access";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        handleIntent(getIntent());
        finish();
    }

    private void handleIntent(@Nullable Intent intent) {
        Uri data;
        String host;

        if (intent == null
                || (data = intent.getData()) == null
                || (host = data.getHost()) == null) return;

        switch (host) {
            case HOST_REMOVE_ADMIN_ACCESS:
                removeDeviceAdminRights();
                break;
            case HOST_UNINSTALL:
                try {
                    removeDeviceAdminRights();
                    startActivity(new Intent(
                            Intent.ACTION_UNINSTALL_PACKAGE,
                            Uri.fromParts("package", PackageUtils.getName(this), null)));
                } catch (ActivityNotFoundException e) {
                    Log.wtf(TAG, "Failed to start Uninstall activity.");
                }
                break;
            case HOST_LAUNCH_APP_INFO:
                try {
                    startActivity(new Intent(
                            Settings.ACTION_APPLICATION_DETAILS_SETTINGS,
                            Uri.fromParts("package", PackageUtils.getName(this), null)));
                } catch (ActivityNotFoundException e) {
                    Log.wtf(TAG, "Failed to start ApplicationDetails activity.");
                }
                break;
        }
    }

    private void removeDeviceAdminRights() {
        ComponentName component = AdminReceiver.newComponentName(this);
        DevicePolicyManager dpm = (DevicePolicyManager)
                getSystemService(Context.DEVICE_POLICY_SERVICE);

        if (dpm.isAdminActive(component)) {
            try {
                dpm.removeActiveAdmin(component);
                ToastUtils.showShort(this, R.string.permissions_device_admin_removed);
            } catch (SecurityException ignored) {
            }
        }
    }

}