Android display toast

Question

I saw this

But not works for me.

I am going to display Toast, in my code:

private class MyPhoneStateListener extends PhoneStateListener {

    public void onCallStateChanged(int state, String incomingNumber) {

        Log.d("MyPhoneListener", state + "   incoming no:" + incomingNumber);

        if (state == 1) {

            String msg = "New Phone Call Event. Incomming Number : " + incomingNumber;
            int duration = Toast.LENGTH_LONG;
            Toast toast = Toast.makeText(getApplicationContext(), msg, duration);
            toast.show();

        }
    }
}

But i have compile time exception neither in getApplicationContext() or in MainActivity.this , or getActivity().

What is the solution?

What is your exception? send it here. have you tried to you getBaseContext() instead of getApplicationContext(). — Burak Karasoy, Nov 19 '15 at 10:28

score 0 · Answer 1 · edited Nov 19 '15 at 11:14

0

Try this way:

Toast.makeText(getApplicationContext(), "message", Toast.LENGTH_SHORT).show();

edited Nov 19 '15 at 11:14

Aditya Vyas-Lakhan

13,409
16
61
96

answered Nov 19 '15 at 10:24

MurugananthamS

2,395
4
20
49

@Ghkjnsadxzcx use getBaseContext() instead of getApplicationContext() – MurugananthamS Nov 19 '15 at 10:33

score 0 · Answer 2 · answered Nov 19 '15 at 10:31

0

You need to pass context from the activity in which you are calling the method,you need to change your code something like below

public void onCallStateChanged(Context context, int state, String incomingNumber) {

    Log.d("MyPhoneListener", state + "   incoming no:" + incomingNumber);

    if (state == 1) {

        String msg = "New Phone Call Event. Incomming Number : " + incomingNumber;
        int duration = Toast.LENGTH_LONG;
        Toast toast = Toast.makeText(context, msg, duration);
        toast.show();
    }
}

now you need to pass context along with int state and string number like youractivityname.this

answered Nov 19 '15 at 10:31

karan

8,637
3
41
78

you can not do that, it will change the method signature – sonic Nov 19 '15 at 10:32
look at your answer bro you are doing the same thing – karan Nov 19 '15 at 10:32
I was talking about the signature of the methof `onCallStateChanged`. You should not change its signature. – sonic Nov 19 '15 at 10:38

sonic · Answer 3 · 2015-11-19T10:44:01.927

0

You can all getApplicationContext() like that in your class MyPhoneStateListener. This method is not static so getApplicationContext() is like calling this.getApplicationContext(). And your class MyPhoneStateListener does not extends a class with such method.

So the solution will be to add a field Context mContext to your class. Then add a construtor

public MyPhoneStateListener(Context context, ...some other arguments if you need then ...) {
     super();
     mContext = context;
     ...some other stuff if you need then...
}

Then you can make your toast :

enterToast toast = Toast.makeText(mContext, msg, duration);

edited Nov 19 '15 at 10:44

answered Nov 19 '15 at 10:31

sonic

1,894
1
18
22

then what are you doing her check your code. you are passing `"context"`, along with some other arguments – karan Nov 19 '15 at 10:40
Yes in the constructor. Then reference this context in a field. The method `onCallStateChanged` is define in the super class `PhoneStateListener`. If you change its signature, it will not override the method from super class. – sonic Nov 19 '15 at 10:43
check the question, method is not overridden – karan Nov 19 '15 at 10:45
Well check documentation, http://developer.android.com/reference/android/telephony/PhoneStateListener.html#onCallStateChanged%28int,%20java.lang.String%29 – sonic Nov 19 '15 at 10:49

score 0 · Answer 4 · answered Nov 19 '15 at 10:34

0

instead of getApplicationContext() try with

Toast toast = Toast.makeText(Youractivity.this, msg, duration);

if you have contentprovider then

getContext()

answered Nov 19 '15 at 10:34

Aditya Vyas-Lakhan

13,409
16
61
96

score 0 · Answer 5 · answered Nov 19 '15 at 10:41

0

You have to run on ui Thread:

get a reference to your activity

do this

        activity.runOnUiThread(new Runnable() { public void run() {
            Toast.makeText(activity, message, Toast.LENGTH_SHORT).show();
        }
    });

answered Nov 19 '15 at 10:41

McflyDroid

177
10

Android display toast

5 Answers5