CODEWITHSUNDEEP
javaandroidandroid-studio
varun pandey
varun pandey

Reputation: 45

Why my Intent is not working?

When I click on Signin Button, App is Crashing. While I am debugging the code, it moves to a finally block of "Looper.java" file. I don't have any file with this name.

MainActivity.java

private void signIn() {

   Intent intent = new Intent(MainActivity.this, Main_Tab.class);
    startActivity(intent);
    setContentView(R.layout.activity_main_home);
}

Looper.java

try {
            msg.target.dispatchMessage(msg);
        } finally {
            if (traceTag != 0) {
                Trace.traceEnd(traceTag);
            }
        }

Upvotes: 0

Views: 3765

Answers (7)

Hitesh Anand
Hitesh Anand

Reputation: 43

You wouldn't have added the activity (Main_Tab) to your AndroidManifest.xml file I faced the same issue and it was resolved upon doing this.

Upvotes: 2

Kenny Li
Kenny Li

Reputation: 132

Are you sure the Main_Tab.class extends some kind of Activity class such as "AppCompatActivity". One thing that also caught my eyes is your usage of underscore in Main_Tab, but I guess it's my personal preference to use camelcase for naming classes.

Also try removing:

setContentView(R.layout.activity_main_home);

Upvotes: 0

Kennedy
Kennedy

Reputation: 556

Change your sign in constructor to this

private void signIn() {

Intent intent = new Intent(context, Main_Tab.class);
startActivity(intent);
finish();
}

and in your onCreate constructor add this if not there already.

final Context context = this;

Let me know if you still have issues.

Upvotes: 0

shriramchoubey
shriramchoubey

Reputation: 7

private void signIn() {
    Intent intent = new Intent(MainActivity.this, Main_Tab.class);
    startActivity(intent);
}

Try this, don't call setContentView method after starting the activity.

Upvotes: 0

isamirkhaan1
isamirkhaan1

Reputation: 759

In onCreate() method always put these two lines on top -

 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_main);

So, all you need in onClickListener(), in this case which is signIn() are these. 

Intent intent = new Intent(MainActivity.this, Main_Tab.class);
startActivity(intent)

If the app is still crashing, debug onCreate() method of Main_Tab and post the log report.

Upvotes: 0

Mehran Zamani
Mehran Zamani

Reputation: 831

The below line should be before starting the activity. 

setContentView(R.layout.activity_main_home);

because when you run new activity, new content will be displayed instead of old one. it should be like this.

private void signIn() {
   setContentView(R.layout.activity_main_home);
   Intent intent = new Intent(MainActivity.this, Main_Tab.class);
    startActivity(intent);

}

Upvotes: 0

Vlad
Vlad

Reputation: 33

try this

private void signIn() {
    Intent intent = new Intent(MainActivity.this, Main_Tab.class);
    startActivity(intent);    
}

Upvotes: 0

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