when battery is low connect device when i connect device automatically dismiss alert dialog box from activities - dialog

Question

This is my broadcast reciver fun in mainactivity.kt file
private val mPlugInReceiver = object : BroadcastReceiver() {
override fun onReceive(context: Context, intent: Intent) {
val bm = context.getSystemService(Application.BATTERY_SERVICE) as BatteryManager
val batLevel:Int = bm.getIntProperty(BatteryManager.BATTERY_PROPERTY_CAPACITY)
System.out.println("integerBatteryLevel ===="+batLevel)
if(batLevel < 20){
System.out.println("this is low battaroy below 20 % ===="+batLevel)
}else
{
System.out.println("this is nice battaroy more than 20 % ===="+batLevel)
}
when (intent.action) {
Intent.ACTION_POWER_CONNECTED -> {
Toast.makeText(context, "Power connected", Toast.LENGTH_SHORT).show()
openDialogForBatteryStatus(false)
}
Intent.ACTION_POWER_DISCONNECTED -> {
if(batLevel > 20){
openDialogForBatteryStatus(false)
}else
{
Toast.makeText(context, "Power disconnected", Toast.LENGTH_SHORT).show()
openDialogForBatteryStatus(true)
}
}
}
}
}

Answer 1

This is My BaseActivity Calling Alert Dialog box
open class BaseActivity : AppCompatActivity() {
fun openDialogForBatteryLevel(show: Boolean){
val dialogView = layoutInflater.inflate(R.layout.dialog_battery_low, null)
val dialog = AlertDialog.Builder(this#BaseActivity)
dialog.setView(dialogView).setCancelable(false)
val d= dialog.create()
if(show){
if(d.isShowing)
d.show()
}else{
d.dismiss()
}
dialogView.txtViewDescription.text = "Your Phone Battery is low"
dialogView.txtViewOk.setOnClickListener{
this.finishAffinity()
}
d.window!!.setBackgroundDrawable(ColorDrawable(Color.TRANSPARENT))
}
fun openDialogForBatteryStatus(show: Boolean) {
val dialogView = layoutInflater.inflate(R.layout.dialog_battery_low, null)
val dialog = AlertDialog.Builder(this#BaseActivity)
dialog.setView(dialogView).setCancelable(false)
val d= dialog.create()
if(show){
if(d.isShowing)
d.show()
}else{
d.dismiss()
}
dialogView.txtViewDescription.text = "Please Remove charger"
dialogView.txtViewOk.setOnClickListener{
this.finishAffinity()
}
d.window!!.setBackgroundDrawable(ColorDrawable(Color.TRANSPARENT))
}
}

Answer 2

What you are doing is creating the new dialog everytime u call the method openDialogForBatteryLevel() and every time you try to dismiss you are dismissing the new object of dialog and not the one attached to the window . You should globally hold the object (preferably weak reference of the object) and initialize it only if it is not initialized and do the operation on it.

Answer 3

Again i change my BaseActivity than too Some red line it show in code
fun openDialogForBatteryLevel(show: Boolean, message : String): AlertDialog{
val dialog
val dialogView
var d
if(alertD == null){
dialog = AlertDialog.Builder(this#BaseActivity)
dialogView = layoutInflater.inflate(R.layout.dialog_battery_low, null)
dialog.setView(dialogView).setCancelable(false)
d = dialog.create()
}else{
d = alertD
}
if(show){
if(d.isShowing)
d.show()
}else{
d.dismiss()
}
dialogView.txtViewDescription.text = message
dialogView.txtViewOk.setOnClickListener{
this.finishAffinity()
}
d.window!!.setBackgroundDrawable(ColorDrawable(Color.TRANSPARENT))
return d
}

Answer 4

open class BaseActivity : AppCompatActivity() {
fun openDialogForBatteryLevel(){
val dialogView = layoutInflater.inflate(R.layout.dialog_battery_low, null)
val dialog = AlertDialog.Builder(this#BaseActivity)
.setView(dialogView).setCancelable(false)
.show()
dialogView.txtViewDescription.text = "Your Phone Battery is low"
dialogView.txtViewOk.setOnClickListener{
this.finishAffinity()
}
dialog.window!!.setBackgroundDrawable(ColorDrawable(Color.TRANSPARENT))
dialogView.txtViewOk.setOnClickListener {
dialog.dismiss()
}
}
fun openDialogForBatteryStatus(){
val dialogView = layoutInflater.inflate(R.layout.dialog_battery_low, null)
val dialog = AlertDialog.Builder(this#BaseActivity)
.setView(dialogView).setCancelable(false)
.show()
dialogView.txtViewDescription.text = "Please Remove charger"
dialogView.txtViewOk.setOnClickListener{
this.finishAffinity()
}
dialog.window!!.setBackgroundDrawable(ColorDrawable(Color.TRANSPARENT))
dialogView.txtViewOk.setOnClickListener {
dialog.dismiss()
}
}
}