Android Intent Cannot resolve constructor

Question

I have a first class extending Fragment, and a second class extending Activity.

My Fragment is working fine, and my code for the Intent in the Fragment is :

ImageButton button= (ImageButton) getView().findViewById(R.id.button);
    button.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Intent myIntent = new Intent(MyFragment.this, MyClass.class);
            MyFragment.this.startActivity(myIntent);            }
    });

My class MyClass code is :

public class MyClass extends Activity {
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        // The activity is being created.
    }

    @Override
    protected void onStart() {
        super.onStart();

        setContentView(R.layout.MyClass);
    } 
}

The error is :

Gradle: cannot find symbol constructor Intent(com.xxxx.xxxx.MyFragment,java.lang.Class<com.xxxx.xxxx.MyClass>)

I don't know where I went wrong.

score 164 · Accepted Answer · edited Dec 17 '15 at 19:53

164

Use

Intent myIntent = new Intent(v.getContext(), MyClass.class);

or

 Intent myIntent = new Intent(MyFragment.this.getActivity(), MyClass.class);

to start a new Activity. This is because you will need to pass Application or component context as a first parameter to the Intent Constructor when you are creating an Intent for a specific component of your application.

edited Dec 17 '15 at 19:53

CaptJak

3,592
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answered Nov 27 '13 at 12:00

ρяσѕρєя K

132,198
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15

`Intent intent = new Intent(getApplicationContext(), myClass.class);` – ArtiomLK Nov 21 '16 at 04:24
Thanks a lot. But how come this is not available anywhere in the main android resources? – Arjun Kalidas Jun 19 '17 at 12:38
@Kruger Brent You should ask somebody who is responsible for the "main android resources". I don't believe they read stackoverflow or at least not on a regular basis. – The incredible Jan Sep 21 '17 at 09:17
It happened to me. I used the new Intent during callback block and specified the source class **this**. That's why I am going wrong. – Shark Deng Oct 16 '19 at 06:51

score 8 · Answer 2 · answered Jan 12 '17 at 12:59

8

Or you can simply start the activity as shown below;

startActivity( new Intent(currentactivity.this, Tostartactivity.class));

answered Jan 12 '17 at 12:59

wanjiku

251
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14

"Or"? Referring to what? I can't see anything here that's less simple... – The incredible Jan Sep 21 '17 at 09:21

score 5 · Answer 3 · answered Apr 16 '17 at 05:53

5

You may use this:

Intent intent = new Intent(getApplicationContext(), ClassName.class);

answered Apr 16 '17 at 05:53

Aditya Mhamunkar

261
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It seems if the activity is extending any activity other than `AppCompatActivity` or `Activity`, only this solution works. – LoMaPh Jun 10 '18 at 19:11

score 1 · Answer 4 · answered Apr 11 '18 at 11:31

1

Using .getActivity() solves this issue:

For eg.

Intent i= new Intent(MainActivity.this.getActivity(), Next.class);
startActivity(i);

Hope this helps.

Cheers.

answered Apr 11 '18 at 11:31

Crime_Master_GoGo

1,641
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score 0 · Answer 5 · answered Nov 27 '13 at 12:02

0

You Can not Use the Intent's Context for Creating Intent. So You need to use your Fragment's Parent Activity Context

Intent intent = new Intent(getActivity(),MyClass.class);

answered Nov 27 '13 at 12:02

Subramanian Ramsundaram

1,362
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score 0 · Answer 6 · answered Jan 16 '19 at 07:00

Same Error was coming with my code in Activity but not in Fragment. Showing constructor error for different line like new Intent( From.this, To.class) and new ArrayList<> etc.

Fixed using closing Android Studio and moving the repository to other location and opening the the project once again. Fixed the problem.

Seems like Android Studio building problem.

score 0 · Answer 7 · answered Jul 02 '20 at 18:14

this work for me

    ncharacters.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            Intent openncharacter = new Intent(getApplicationContext(),ncharacters.class);
            startActivity(openncharacter);
        }
    });

Android Intent Cannot resolve constructor

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