White screen is displayed while switching between Activities

Question

When I move from one Activity to another Activity, a white screen is displayed for 2 seconds. I am using this code:

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

How can I resolve this issue?

Ricarda

show your second activity xml and java file. – Winther

Do you have any web services in SecondActivity? – Balliett

Amsheer : No server calls. FirstActivity has MoodStock Scanner Camera. Second Activity contains just one Text "hello world". – Ricarda

Answer 1

Create a Theme like this:

<style name="YourTheme" parent="YourParentTheme">
    <item name="android:windowDisablePreview">true</item>
</style>

Apply this theme to your second activity

Expensive

Worked for me too. Thank you. – Greasepaint

what this actually do? – Contraction

Its delaying activity loading time. – Roncesvalles

by adding that line its not taking one click to open the app . It's taking two clicks and after the second click it holds for 2 sec and launches the app – Mountainside

What if I don't have an activity to implement the style? for example, when i just want to open a new browser from my app. When I back to my app i see the blank white screen.... Intent intent = new Intent(Intent.ActionView); intent.AddFlags(ActivityFlags.ClearTop); intent.SetData(Android.Net.Uri.Parse(url)); context.StartActivity(intent); Can you please help? – Hasp

@Hasp have you tried to apply this style to the first activity when you back to your app? – Expensive

Answer 2

If your activity contains more complex layouts, do not use finish() after setting flag. Use FLAG_ACTIVITY_CLEAR_TOP and _TASK instead and it will solve your problem.This worked for me perfectly

Intent intent = new Intent(this, SecondActivity.class); intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK|Intent.l̥FLAG_ACTIVITY_CLEAR_TOP ); startActivity(intent);

or use simply like below

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

Alemanni

Unfortunately it doesn't finish your current activity. – Determinant

Answer 3

While switching from ActivityOne to ActivityTwo, till ActivityTwo onCreate method gets executed default background is shown which is the white/black screen. Good practise is don't do heavy operation in onCreate. To fix the issue set transparent background to ActivityTwo as shown below.

<style name="YourTheme" parent="YourParentTheme">
<item name="android:windowBackground">@android:color/transparent</item>
</style>

In Manifest set above theme

<activity
            android:name=".ActivityTwo"
            android:theme="@style/YourTheme">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
</activity>

Fonsie

Answer 4

Try adding intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); before calling startActivity(intent);

Intent intent = new Intent(this, SecondActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);

Job

Answer 5

Try to add intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)

Bedazzle

Answer 6

If your activity contains more complex layouts/ contains large size background image it takes rendering, so only that white page is displaying. If you want to remove that time delay use low size png images and clear layout designs.

Gerrald

Answer 7

By using FLAG_ACTIVITY_NEW_TASK you are getting white screen, remove this like use this. It will work.

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

Bufford

Answer 8

To go to next activity use flag

Intent intent = new Intent(this, SecondActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);

Decretal

what's the intent of finish()? – Infringement

to finish() current activity – Decretal

I dont want to finish my current(first) activity. – Ricarda

ok then show your full code..have you added your set conttentview to your second activity? – Decretal

sometimes only using this will not work..so better try Youractivityname.this or getApplicationContext – Decretal

Answer 9

use finish if you want to clear the activity means when you press back then there is no stack of activity.

So you want to clear then use finish otherwise don't use it.

Zooid