Many Android manufacturers cause trouble by implementing battery optimizations that cause apps to behave unexpectedly at runtime. This util class allows you to show a dialog to users having such phones and sends them to the settings screen where they can turn of battery optimizations for your app.

ManufacturerBatteryOptimization.java

/*
MIT License

Copyright (c) 2018 Fayaz Bin Salam

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/

package p32929.desplash.Utils;

import android.content.ComponentName;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.pm.PackageManager;
import android.support.v7.app.AlertDialog;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

public class ManufacturerBatteryOptimization {

    //
    private static SharedPreferences sharedPreferences;

    //
    private static String MANUFACTURER = "MANUFACTURER";
    private static String PROTECTED = "PROTECTED";

    private static List<Intent> POWERMANAGER_INTENTS = Arrays.asList(
            new Intent().setComponent(new ComponentName("com.asus.mobilemanager", "com.asus.mobilemanager.entry.FunctionActivity")).setData(android.net.Uri.parse("mobilemanager://function/entry/AutoStart")),
			new Intent().setComponent(new ComponentName("com.asus.mobilemanager", "com.asus.mobilemanager.MainActivity")),
			new Intent().setComponent(new ComponentName("com.coloros.safecenter", "com.coloros.safecenter.permission.startup.StartupAppListActivity")),
			new Intent().setComponent(new ComponentName("com.coloros.safecenter", "com.coloros.safecenter.startupapp.StartupAppListActivity")),
			new Intent().setComponent(new ComponentName("com.dewav.dwappmanager", "com.dewav.dwappmanager.memory.SmartClearupWhiteList"))
			new Intent().setComponent(new ComponentName("com.htc.pitroad", "com.htc.pitroad.landingpage.activity.LandingPageActivity")),
			new Intent().setComponent(new ComponentName("com.huawei.systemmanager", "com.huawei.systemmanager.appcontrol.activity.StartupAppControlActivity")),
			new Intent().setComponent(new ComponentName("com.huawei.systemmanager", "com.huawei.systemmanager.optimize.process.ProtectActivity")),
			new Intent().setComponent(new ComponentName("com.huawei.systemmanager", "com.huawei.systemmanager.startupmgr.ui.StartupNormalAppListActivity")),
			new Intent().setComponent(new ComponentName("com.iqoo.secure", "com.iqoo.secure.ui.phoneoptimize.AddWhiteListActivity")),
			new Intent().setComponent(new ComponentName("com.iqoo.secure", "com.iqoo.secure.ui.phoneoptimize.BgStartUpManager")),
			new Intent().setComponent(new ComponentName("com.letv.android.letvsafe", "com.letv.android.letvsafe.AutobootManageActivity")),
			new Intent().setComponent(new ComponentName("com.miui.securitycenter", "com.miui.permcenter.autostart.AutoStartManagementActivity")),
			new Intent().setComponent(new ComponentName("com.oppo.safe", "com.oppo.safe.permission.startup.StartupAppListActivity")),
			new Intent().setComponent(new ComponentName("com.samsung.android.lool", "com.samsung.android.sm.battery.ui.BatteryActivity")),
			new Intent().setComponent(new ComponentName("com.samsung.android.lool", "com.samsung.android.sm.ui.battery.BatteryActivity")),
			new Intent().setComponent(new ComponentName("com.transsion.phonemanager", "com.itel.autobootmanager.activity.AutoBootMgrActivity")),
			new Intent().setComponent(new ComponentName("com.vivo.permissionmanager", "com.vivo.permissionmanager.activity.BgStartUpManagerActivity")),
			new Intent().setComponent(new ComponentName("com.vivo.permissionmanager", "com.vivo.permissionmanager.activity.BgStartUpManagerActivity")), new Intent().setComponent(new ComponentName("com.asus.mobilemanager", "com.asus.mobilemanager.entry.FunctionActivity")).setData(android.net.Uri.parse("mobilemanager://function/entry/AutoStart"))
    );

    private static ArrayList<Intent> getAvailableIntents(final Context context) {
        ArrayList<Intent> availableIntents = new ArrayList<>();
        for (Intent intent : POWERMANAGER_INTENTS) {
            if (context.getPackageManager().resolveActivity(intent, PackageManager.MATCH_DEFAULT_ONLY) != null) {
                availableIntents.add(intent);
            }
        }
        return availableIntents;
    }

    public static void showAddToWhitelistDialog(final Context context) {
        if (getAvailableIntents(context).size() > 0) {
            if (sharedPreferences == null) {
                sharedPreferences = context.getSharedPreferences(MANUFACTURER, Context.MODE_PRIVATE);
            }

            if (!sharedPreferences.getBoolean(PROTECTED, false)) {
                AlertDialog dialog = new AlertDialog.Builder(context)
                        .setTitle("ATTENTION PLEASE")
                        .setMessage("Dear " + android.os.Build.MANUFACTURER + " user, you need to add " + getApplicationName(context) + " in your Task Killer\'s whitelist for " + getApplicationName(context) + " to work properly.\nClick OK to proceed...")
                        .setPositiveButton("OK", new DialogInterface.OnClickListener() {
                            @Override
                            public void onClick(DialogInterface dialog, int which) {
                                for (Intent intent : getAvailableIntents(context)) {
                                    context.startActivity(intent);
                                }
                                sharedPreferences.edit().putBoolean(PROTECTED, true).apply();
                            }
                        })
                        .setCancelable(false)
                        .create();
                dialog.show();
            }
        }
    }


    private static String getApplicationName(Context context) {
        return String.valueOf(context.getApplicationInfo().loadLabel(context.getPackageManager()));
    }
}

How to use

Just call ManufacturerBatteryOptimization.showAddToWhitelistDialog() method from anywhere you like... :)

Thanks :)

I see that lines 62-69 are duplicates of lines 49-58

That's true. I'm surprised how come I didn't notice it before. Anyways, thanks. I just updated the code...

Great. Btw, I scraped a few extra Intent from some googling. This is my complete list (including most of yours)

new Intent().setComponent(new ComponentName("com.miui.securitycenter", "com.miui.permcenter.autostart.AutoStartManagementActivity")),
            new Intent().setComponent(new ComponentName("com.letv.android.letvsafe", "com.letv.android.letvsafe.AutobootManageActivity")),
            new Intent().setComponent(new ComponentName("com.huawei.systemmanager", "com.huawei.systemmanager.startupmgr.ui.StartupNormalAppListActivity")),
            new Intent().setComponent(new ComponentName("com.huawei.systemmanager", "com.huawei.systemmanager.optimize.process.ProtectActivity")),
            new Intent().setComponent(new ComponentName("com.huawei.systemmanager", "com.huawei.systemmanager.appcontrol.activity.StartupAppControlActivity")),
            new Intent().setComponent(new ComponentName("com.coloros.safecenter", "com.coloros.safecenter.permission.startup.StartupAppListActivity")),
            new Intent().setComponent(new ComponentName("com.coloros.safecenter", "com.coloros.safecenter.startupapp.StartupAppListActivity")),
            new Intent().setComponent(new ComponentName("com.oppo.safe", "com.oppo.safe.permission.startup.StartupAppListActivity")),
            new Intent().setComponent(new ComponentName("com.iqoo.secure", "com.iqoo.secure.ui.phoneoptimize.AddWhiteListActivity")),
            new Intent().setComponent(new ComponentName("com.iqoo.secure", "com.iqoo.secure.ui.phoneoptimize.BgStartUpManager")),
            new Intent().setComponent(new ComponentName("com.vivo.permissionmanager", "com.vivo.permissionmanager.activity.BgStartUpManagerActivity")),
            new Intent().setComponent(new ComponentName("com.samsung.android.lool", "com.samsung.android.sm.battery.ui.BatteryActivity")),
            new Intent().setComponent(new ComponentName("com.samsung.android.lool", "com.samsung.android.sm.ui.battery.BatteryActivity")),
            new Intent().setComponent(new ComponentName("com.htc.pitroad", "com.htc.pitroad.landingpage.activity.LandingPageActivity")),
            new Intent().setComponent(new ComponentName("com.asus.mobilemanager", "com.asus.mobilemanager.MainActivity")),
            new Intent().setComponent(new ComponentName("com.asus.mobilemanager", "com.asus.mobilemanager.entry.FunctionActivity")).setData(android.net.Uri.parse("mobilemanager://function/entry/AutoStart")),
            new Intent().setComponent(new ComponentName("com.transsion.phonemanager", "com.itel.autobootmanager.activity.AutoBootMgrActivity")),
            new Intent().setComponent(new ComponentName("com.dewav.dwappmanager", "com.dewav.dwappmanager.memory.SmartClearupWhiteList"))

@christocracy thanks man. updated the code with your code