Toast message doesn't show up on actual phone while it shows in emulator

Question

I'm trying to create an android application. One part is to make sure that toast message shows. It works when I'm running the app on the android studio emulator, but it doesn't show when I'm running on actual Samsung phone

It's about a thousand line code, so I don't think it's helpful to copy all of it. So, I'd like to know if there is any common issues that can make toast messages to show in emulator but not in actual phone.

-- EDIT --

This is one of the parts where I want to toast message

private fun addListenerOnImageButtonHelper(intent: Intent, sensorId: Int, sensorType: Int, sensorTypeToString: String) {
    findViewById<ImageButton>(sensorId).setOnClickListener {
        if (sensorManager.getDefaultSensor(sensorType) != null) {
            intent.putExtra("sensor", sensorType)
            startActivity(intent)
        } else {
            Toast.makeText(this,
                "$sensorTypeToString sensor is not available on this device",
                Toast.LENGTH_LONG).show()
        }
    }
}

-- EDIT --

Phone's setting to show notification was turned off. Problem Solved... Thanks

Please paste the code here which you are writing to display the toast. — nimi0112, May 27 '19 at 08:01
paste only one example where it's happening. we don't need 1000 lines of code — shb, May 27 '19 at 08:02
Brother write your code like this any where you want to display Toast — Rahul Kushwaha, May 27 '19 at 08:09
Did you try putting a break point on else? Check whether else block is executing or not. Or put a Log message — shb, May 27 '19 at 08:16
@shb I just added println() statement, and it works. Else block is executing. — Mr.B, May 27 '19 at 08:21
Try to use with `getApplicationContext()` instead of `this` ! — Dinesh Shingadiya, May 27 '19 at 08:21
@DineshShingadiya it seems like 'applicationContext' is the one for Kotlin grammar. Unfortunately, it doesn't work... — Mr.B, May 27 '19 at 08:25
Then try to create your button object from `onCreate()` instead of `addListenerOnImageButtonHelper()` — Dinesh Shingadiya, May 27 '19 at 08:31
@DineshShingadiya imagebutton object is created on xml file. I'm just finding those objects from addListenerOnImageButtonHelper() function — Mr.B, May 27 '19 at 08:36
check this answer https://stackoverflow.com/a/27755101/6207294 May be notification permission for your app in physical device is off — shb, May 27 '19 at 08:40
@shb LOL... how come I turned off this setting... Thanks a lot Thank you so much I've been trying to solve this for more than a day... — Mr.B, May 27 '19 at 08:49

Vishal Sojitra · Answer 1 · 2019-05-27T08:21:12.217

You need add ActivityName.this when you create toast

Because you want to show toast from ImageButton click

private fun addListenerOnImageButtonHelper(intent: Intent, sensorId: Int, sensorType: Int, sensorTypeToString: String) {
    findViewById<ImageButton>(sensorId).setOnClickListener {
        if (sensorManager.getDefaultSensor(sensorType) != null) {
            intent.putExtra("sensor", sensorType)
            startActivity(intent)
        } else {
            Toast.makeText(ActivityName.this,
                "$sensorTypeToString sensor is not available on this device",
                Toast.LENGTH_LONG).show()
        }
    }
}

Else you need to pass Context as parameter in your function

Like

private fun addListenerOnImageButtonHelper(context: Context,intent: Intent, sensorId: Int, sensorType: Int, sensorTypeToString: String) {
    findViewById<ImageButton>(sensorId).setOnClickListener {
        if (sensorManager.getDefaultSensor(sensorType) != null) {
            intent.putExtra("sensor", sensorType)
            startActivity(intent)
        } else {
            Toast.makeText(context,
                "$sensorTypeToString sensor is not available on this device",
                Toast.LENGTH_LONG).show()
        }
    }
}

It cause an error (red line) when I changed this to MainPageActivity.this (activity name is MainPageActivity) — Mr.B, May 27 '19 at 08:17

Toast message doesn't show up on actual phone while it shows in emulator

1 Answers1