Android M startActivity battery optimization

To open list of apps for choosing battery optimization you can use this code sample:

private void openPowerSettings(Context context) {
    Intent intent = new Intent();
    intent.setAction(Settings.ACTION_IGNORE_BATTERY_OPTIMIZATION_SETTINGS);
    context.startActivity(intent);
}

It doesn't need to have <uses-permission android:name="android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS"/> permission, so it should be ok to publish it to Google Play (for details please check this thread and comments to this question).

NOTE

Adding this line

intent.setData(Uri.parse("package:" + mContext.getPackageName()));

will cause crash "Fatal Exception: android.content.ActivityNotFoundException No Activity found to handle Intent { act=android.settings.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS dat=package:io.demo.example }". User has to find the app in the list, it seems no way to jump directly to our app.

Try the below code to open Ignore Battery Optimization Settings page.

private void openPowerSettings() {
    startActivityForResult(new Intent(android.provider.Settings.ACTION_IGNORE_BATTERY_OPTIMIZATION_SETTINGS), 0);
}

No extra permissions are required to be added to the manifest file.

This is what I use:

manifest:

    <uses-permission android:name="android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS" />

import android.Manifest
import android.annotation.SuppressLint
import android.content.Context
import android.content.Intent
import android.content.pm.PackageManager
import android.net.Uri
import android.os.Build
import android.os.PowerManager
import android.provider.Settings
import androidx.annotation.RequiresPermission
import androidx.core.content.ContextCompat

object PowerSaverHelper {
    enum class WhiteListedInBatteryOptimizations {
        WHITE_LISTED, NOT_WHITE_LISTED, ERROR_GETTING_STATE, IRRELEVANT_OLD_ANDROID_API
    }

    fun getIfAppIsWhiteListedFromBatteryOptimizations(context: Context, packageName: String = context.packageName): WhiteListedInBatteryOptimizations {
        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) return WhiteListedInBatteryOptimizations.IRRELEVANT_OLD_ANDROID_API
        val pm = context.getSystemService(Context.POWER_SERVICE) as PowerManager?
                ?: return WhiteListedInBatteryOptimizations.ERROR_GETTING_STATE
        return if (pm.isIgnoringBatteryOptimizations(packageName)) WhiteListedInBatteryOptimizations.WHITE_LISTED else WhiteListedInBatteryOptimizations.NOT_WHITE_LISTED
    }

    //@TargetApi(VERSION_CODES.M)
    @SuppressLint("BatteryLife", "InlinedApi")
    @RequiresPermission(Manifest.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS)
    fun prepareIntentForWhiteListingOfBatteryOptimization(context: Context, packageName: String = context.packageName, alsoWhenWhiteListed: Boolean = false): Intent? {
        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M)
            return null
        if (ContextCompat.checkSelfPermission(context, Manifest.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS) == PackageManager.PERMISSION_DENIED)
            return null
        val appIsWhiteListedFromPowerSave: WhiteListedInBatteryOptimizations = getIfAppIsWhiteListedFromBatteryOptimizations(context, packageName)
        var intent: Intent? = null
        when (appIsWhiteListedFromPowerSave) {
            WhiteListedInBatteryOptimizations.WHITE_LISTED -> if (alsoWhenWhiteListed) intent = Intent(Settings.ACTION_IGNORE_BATTERY_OPTIMIZATION_SETTINGS)
            WhiteListedInBatteryOptimizations.NOT_WHITE_LISTED -> intent = Intent(Settings.ACTION_REQUEST_IGNORE_BATTERY_OPTIMIZATIONS).setData(Uri.parse("package:$packageName"))
            WhiteListedInBatteryOptimizations.ERROR_GETTING_STATE, WhiteListedInBatteryOptimizations.IRRELEVANT_OLD_ANDROID_API -> {
            }
        }
        return intent
    }
}

Example:

PowerSaverHelper.prepareIntentForWhiteListingOfBatteryOptimization(this)?.let { startActivity(it) }