Unable to use Toast on Samsung A5 (2016)

Question

Last time I was working on same project and I was able to use Toasts. But today when I try to use Toast nothing is showing. I tried my best to solve this problem but not succeeded.

This is what I am executing [UPDATED].

package com.azeem.abubakar.dbm;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;


public class MainActivity extends AppCompatActivity {

    private Button btn_start;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        // Initialization
        btn_start = (Button) findViewById(R.id.btn_start);

        //Click Listener for Start Button
        btn_start.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View tView) {

                Log.d("[INFO]", "Just Above Toast!");
                Toast.makeText(MainActivity.this, "Start button Clicked", Toast.LENGTH_SHORT).show();
                Log.d("[INFO]", "Just Below Toast!");

            }
        });

    }
}

Here is what Logcat displays when I click Start Button.

01-13 19:28:36.473 26670-26670/com.azeem.abubakar.dbm D/ViewRootImpl@ede0223[MainActivity]: ViewPostImeInputStage processPointer 0
01-13 19:28:36.474 26670-26670/com.azeem.abubakar.dbm W/System: ClassLoader referenced unknown path: /system/framework/QPerformance.jar
01-13 19:28:36.476 26670-26670/com.azeem.abubakar.dbm E/BoostFramework: BoostFramework() : Exception_1 = java.lang.ClassNotFoundException: Didn't find class "com.qualcomm.qti.Performance" on path: DexPathList[[],nativeLibraryDirectories=[/system/lib, /vendor/lib]]
01-13 19:28:36.538 26670-26670/com.azeem.abubakar.dbm D/ViewRootImpl@ede0223[MainActivity]: ViewPostImeInputStage processPointer 1
01-13 19:28:36.543 26670-26670/com.azeem.abubakar.dbm D/[INFO]: Just Above Toast!
01-13 19:28:36.552 26670-26670/com.azeem.abubakar.dbm D/TextView: setTypeface with style : 0
01-13 19:28:36.560 26670-26670/com.azeem.abubakar.dbm D/[INFO]: Just Below Toast!
01-13 19:28:36.565 26670-26670/com.azeem.abubakar.dbm D/ViewRootImpl@3da3450[Toast]: ThreadedRenderer.create() translucent=true
01-13 19:28:36.571 26670-26670/com.azeem.abubakar.dbm D/InputTransport: Input channel constructed: fd=82
01-13 19:28:36.571 26670-26670/com.azeem.abubakar.dbm D/ViewRootImpl@3da3450[Toast]: setView = android.widget.LinearLayout{5b8d649 V.E...... ......I. 0,0-0,0} touchMode=true
01-13 19:28:36.572 26670-26670/com.azeem.abubakar.dbm D/ViewRootImpl@3da3450[Toast]: dispatchAttachedToWindow
01-13 19:28:36.593 26670-26670/com.azeem.abubakar.dbm D/ViewRootImpl@3da3450[Toast]: Relayout returned: oldFrame=[0,0][0,0] newFrame=[277,1596][802,1728] result=0x27 surface={isValid=true -750856192} surfaceGenerationChanged=true
    mHardwareRenderer.initialize() mSurface={isValid=true -750856192} hwInitialized=true
01-13 19:28:36.594 26670-26713/com.azeem.abubakar.dbm D/mali_winsys: EGLint new_window_surface(egl_winsys_display*, void*, EGLSurface, EGLConfig, egl_winsys_surface**, egl_color_buffer_format*, EGLBoolean) returns 0x3000,  [525x132]-format:1
01-13 19:28:36.631 26670-26670/com.azeem.abubakar.dbm D/ViewRootImpl@3da3450[Toast]: MSG_RESIZED_REPORT: frame=Rect(277, 1596 - 802, 1728) ci=Rect(0, 0 - 0, 0) vi=Rect(0, 0 - 0, 0) or=1
01-13 19:28:38.565 26670-26670/com.azeem.abubakar.dbm D/ViewRootImpl@3da3450[Toast]: mHardwareRenderer.destroy()#4
01-13 19:28:38.582 26670-26670/com.azeem.abubakar.dbm D/ViewRootImpl@3da3450[Toast]: dispatchDetachedFromWindow
01-13 19:28:38.591 26670-26670/com.azeem.abubakar.dbm D/InputTransport: Input channel destroyed: fd=82

Please help me. Thanks.

UPDATE:

Notification is enabled for this app in settings.

But Toast is not showing. What I figured out, it may be device related problem please correct me if I'm wrong. The reason I said it is a device related problem is that last time I used Toasts every thing was working but after I installed a security update in my Samsung Galaxy device toast not showing at all.

My Mobile Model is Samsung A5(2016). Please look at the attached screenshots for software information.

Made a vanilla project with Toast and everything works. What did you change? — tomerpacific, Jan 13 '19 at 12:32
In my project i didn't change anything. But i did install a security update in my Samsung Galaxy device that i'm using. — Abubakar Azeem, Jan 13 '19 at 12:36
Have you found any solution or workaround yet? I have same problem here, toast shows on all devices, except for two Samsung A5s! — saastn, Jan 26 '19 at 13:09

score 2 · Answer 1 · answered Jan 13 '19 at 12:49

2

1- Please verify are you trying to show Toast on Main Thread?? if not try this code

((MainActivity)context).runOnUiThread(new Runnable() {
    public void run() {
           Toast.makeText(MainActivity.this, "Enter Valid File Name!!", Toast.LENGTH_SHORT).show();

    }
});

2- Secondly try using YourActivith.this instead of getBaseContext()

3- Sometimes when keyboard is open toast is visible but behind your soft keyboard try close keyboard first and then see.

Hope any of one will help you!

answered Jan 13 '19 at 12:49

Intsab Haider

3,491
3
23
32

Yes i am using Toast in MainActivity. – Abubakar Azeem Jan 13 '19 at 13:03
are you trying to show it on Main Thread?? means you cannot show toast on background thread so you need to confirm that. – Intsab Haider Jan 13 '19 at 13:05

Guy Luz · Answer 2 · 2019-01-13T13:48:55.777

Try changing this:

getBaseContext()

to getApplicationContext() or getApplication() or this or MainActivity.this (android java page.this).

Exaple:

Toast.makeText(getApplicationContext(), "Enter Valid File Name!!", Toast.LENGTH_SHORT).show();

Be sure to user This on onTextChanged method:

 @Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    EditText edtxt_fileName = findViewById(R.id.edtxt_fileName);
    edtxt_fileName.addTextChangedListener(new TextWatcher() {
        @Override
        public void beforeTextChanged(CharSequence s, int start, int count, int after) {

        }

        @Override
        public void onTextChanged(CharSequence s, int start, int before, int count) {
            String fileName = s.toString();
            if (fileName.equals("")) {
                Log.d("[INFO]", "Just Above Toast!");
                Toast.makeText(getApplicationContext(), "Enter Valid File Name!!", Toast.LENGTH_SHORT).show();
                Log.d("[INFO]", "Just Below Toast!");
            }
            else{   // to show every text change 
                Toast.makeText(getApplicationContext(), "Text: " + fileName, Toast.LENGTH_SHORT).show();   
            }
        }

        @Override
        public void afterTextChanged(Editable s) {

        }
    });

Thanks for your answer. I replaced getBaseContext() but Toast still not showing. — Abubakar Azeem, Jan 13 '19 at 13:02
Updated my answer, @AbubakarAzeem please check my answer again and if this or any answer has solved your question consider accepting it by clicking the check-mark. This indicates to the wider community that you've found a solution and gives some reputation to both the answerer and yourself. There is no obligation to do this. — Guy Luz, Jan 13 '19 at 13:50
Yes i understand @guy that i should mark the correct answer. But my probem is not solved and i have tried all suggestions. Please check my post, i have updated it. There is no problem in code and Toast is working on other devices. Thanks for your concern. — Abubakar Azeem, Jan 13 '19 at 14:41
I checked the code on my device and it is working. Could be the update, sorry bro. — Guy Luz, Jan 13 '19 at 15:10

score 1 · Answer 3 · answered Jan 13 '19 at 12:41

1

Try change this :

 Toast.makeText(getBaseContext(), "Enter Valid File Name!!", Toast.LENGTH_SHORT).show();

Into :

 Toast.makeText(getApplicationContext(), "Enter Valid File Name!!", Toast.LENGTH_SHORT).show();

answered Jan 13 '19 at 12:41

Tamir Abutbul

7,301
7
25
53

Thanks for your answer. I tried it but Toast still not showing. – Abubakar Azeem Jan 13 '19 at 13:00
Can you post a bit more code so i can track your problem? – Tamir Abutbul Jan 13 '19 at 13:09
I'm simply executing this code inside a Button's onClick() Listener. No problem in code. Application not crashing. Just before and after calling toast, i have printed info with [INFO] tag as you can verify in Logcat above. – Abubakar Azeem Jan 13 '19 at 13:18
@AbubakarAzeem lets give thise a try - change getBaseContext into - Activity.this – Tamir Abutbul Jan 13 '19 at 13:34
Yes i changed it with Activity.this.. Not showing on my device – Abubakar Azeem Jan 13 '19 at 13:42

score 0 · Answer 4 · answered Jan 13 '19 at 12:38

0

Try getApplicationContext() instead of getBaseContext(). Go to this link to find where to use which context.
difference and when to use getApplication(), getApplicationContext(), getBaseContext() and someClass.this

answered Jan 13 '19 at 12:38

Md. Nowshad Hasan

586
3
15

Thanks for your answer. I tried it but not working on my device – Abubakar Azeem Jan 13 '19 at 13:02

score 0 · Answer 5 · answered Jan 15 '19 at 06:56

0

try to initialize context in oncreate and pass that context while displaying code this may work

answered Jan 15 '19 at 06:56

Muhammad Haroon

210
2
11

Unable to use Toast on Samsung A5 (2016)

5 Answers5