android 申请忽略电池节电

     fun checkBattery(){
        var main = activity as MainActivity
        if(main.isIgnoringBatteryOptimizations()){
            Log.e("SplashFrgmt","在白名单")
        }else{
            Log.e("SplashFrgmt","不在白名单")
            main.requestIgnoreBatteryOptimizations()
        }
    }

    fun requestIgnoreBatteryOptimizations(){
        try {
            var intent = Intent(Settings.ACTION_REQUEST_IGNORE_BATTERY_OPTIMIZATIONS)
            intent.setData(Uri.parse("package:" + getPackageName()))
            val battery = 3032
            startActivityForResult(intent,battery)
        } catch ( e : Exception) {
            e.printStackTrace()
        }
    }

 override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
        super.onActivityResult(requestCode, resultCode, data)
        val NOTIFY_PER = 10293
        val BATTERY = 3032

        when(requestCode){
            NOTIFY_PER-> {
                ...
            }
            BATTERY->{
                var ret = isIgnoringBatteryOptimizations()
                Log.e("requestCode","requestCode = $resultCode ,ret = $ret")
                if(!ret){
                    Toast.makeText(baseContext,"申请忽略电池节电失败，锁屏后应用可能被杀！",Toast.LENGTH_LONG).show()
                }
            }
        }
    }

fun checkBattery(){
    var main = activity as MainActivity
    if(main.isIgnoringBatteryOptimizations()){
        Log.e("SplashFrgmt","在白名单")
    }else{
        Log.e("SplashFrgmt","不在白名单")
        main.requestIgnoreBatteryOptimizations()
    }
}