CODEWITHSUNDEEP
javaandroidandroid-activity
Jagjeet Singh
Jagjeet Singh

Reputation: 204

In android getting white screen before activity when first time app start on phone

Here is my source code of launcher activity. I search a lot on stack overflow but nothing getting good answer

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

        init();
    }

  private void init(){
        spnLanguage = (Spinner)findViewById(R.id.spnLanguage);
        btnNext = (Button)findViewById(R.id.btnNext);
        btnNext.setOnClickListener(this);

    }

Upvotes: 0

Views: 835

Answers (5)

Gaurav Singh
Gaurav Singh

Reputation: 2320

I had also same issue please find below the question as well as the resolution: White screen is displayed first time on gradle build.

Upvotes: 0

chevalier
chevalier

Reputation: 51

I had a similar problem some time ago.

The activity is displayed to the user when it reaches the onStart() method. Your init() seems to take some time so until it finishes, you will only see the empty activity.

You could either trigger all heavy background work (that is not needed for the initial GUI setup) in a later method or first call another activity acting as splash screen if you have to keep all content of init() where it is.

Upvotes: 0

Prashanth Debbadwar
Prashanth Debbadwar

Reputation: 1047

In my case delay was bit more. After searching a lot I found that it is because of android studio auto run feature. After disabling the auto run issue is solved.

Upvotes: 0

Rajesh Gopu
Rajesh Gopu

Reputation: 893

Android apps do take some amount of time to start up, especially on a cold start. There is a delay there that you may not be able to avoid

https://www.bignerdranch.com/blog/splash-screens-the-right-way/

Upvotes: 1

Prabhuraj
Prabhuraj

Reputation: 928

In the AndroidManifest file of your starting Activity, mention a transparent Theme

<activity
    android:name="Your activity name"
    android:theme="@android:style/Theme.Translucent.NoTitleBar" >
 <intent-filter>
        <action android:name="android.intent.action.MAIN" />
        <category android:name="android.intent.category.LAUNCHER" />
    </intent-filter>

Upvotes: 0

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