Android M startActivity battery optimization

Question

I\'m developing an app that should alert an user if is near a place. and of course have to do that also if the phone is in idle. With DOZE now I understood that I have to whitel

Answer 1

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.

Answer 2

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.

Answer 3

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) }