I am working on an android app and would like to show a splash screen in landscape mode when the system loads the app.
I made a small test app to reproduce the problem and saw that it actually works in portrait mode, but when I add this line android:screenOrientation="sensorLandscape" to my manifest it suddenly doesn't work anymore. It doesn't show any splash screen as if the property windowPreviewDisabled was set to true.
Has anyone an idea what I am doing wrong?
My manifest:
<activity android:name=".MainActivity" android:theme="#style/AppTheme.Launcher" android:screenOrientation="sensorLandscape" android:launchMode="singleTask" android:configChanges="keyboardHidden|orientation">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.
</intent-filter>
</activity>
style xml:
<style name="AppTheme.Launcher" parent="Theme.AppCompat.Light.DarkActionBar">
<item name="android:windowBackground">#layout/launch_screen</item>
</style>
launch screen xml (which is inside layout-land folder):
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" android:opacity="opaque">
<item android:drawable="#android:color/black"/>
<item>
<bitmap
android:src="#drawable/logo2"
android:gravity="center"/>
</item>
</layer-list>
Maybe you could add setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_SENSOR_LANDSCAPE);
in your activity after the setContentView method.
Related
I have a splash screen activity with the following theme:
<style name="AppTheme.Launcher" parent="Theme.AppCompat.NoActionBar">
<item name="android:background">#drawable/splash_theme</item>
</style>
Here is a part of my manifest:
<activity
android:name=".activities.SplashActivity"
android:theme="#style/AppTheme.Launcher">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
And here is my drawable:
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android"
android:opacity="opaque">
<item android:drawable="#color/colorPrimaryDarkBackground" />
<item>
<bitmap
android:gravity="center"
android:src="#drawable/shelpwelt_theme" />
</item>
</layer-list>
At some builds all works perfectly but sometimes the splash screen is completely distorted and blurred but just at the first 2-3 seconds. Then when my splash screen activity reaches onCreate the theme looks perfectly fine.
Here is the problem:
You are using a gif file for this case. And after the given time you said, 2-3 sec it wraps the screen size, so the image gets bigger. That's why it get's blurred on the screen.
Add bottom,left,right,top size to your item.
Change your drawble file to this :
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android"
android:opacity="opaque">
<item android:drawable="#color/colorPrimaryDarkBackground" />
<item
android:bottom="24dp"
android:left="24dp"
android:right="24dp"
android:top="24dp"
>
<bitmap
android:gravity="center"
android:src="#drawable/shelpwelt_theme" />
</item>
</layer-list>
It might be a scaling issue, try to change splash's layout, instead of designing the entire image and set it as a background, design your layout to have two images one for the gray rectangle and the other for the video icon
I have defined splash screen like many other without external activity, but it doesn't works for me, I don't understand why.
Is there any limitations for images? Also tried for many other images
This is my splash.xml
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android"
android:opacity="opaque">
<item>
<bitmap
android:gravity="center"
android:src="#drawable/splash_logo" />
</item>
</layer-list>
Here preview for splash.xml file in android studio looks like perfectly.
Than I have created style like that
<style name="AppTheme.Launcher">
<item name="android:windowBackground">#drawable/splash</item>
</style>
and assigned it to activity theme inside manifest
<activity
android:theme="#style/AppTheme.Launcher"
android:name=".MainActivity"
android:screenOrientation="portrait">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
this is my activity's
override fun onCreate(savedInstanceState: Bundle?) {
setTheme(R.style.AppTheme)
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
}
when activity is loaded blank white screen is shown instead of image, maybe for a one second. I searched this approach and seems that it is the same what others were done. Don't understand what's wrong
EDIT:
I have tested it for another device OS 5.0 and it works, but for 6.0 doesn't
EDIT
Remove this from your activity
setTheme(R.style.AppTheme)
Try this
Style.xml
<style name="SplashTheme" parent="Theme.AppCompat.NoActionBar">
<item name="android:windowBackground">#drawable/splash_background</item>
</style>
splash_background.xml
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="#color/colorPrimary" />
<item>
<bitmap
android:gravity="center"
android:src="#mipmap/ic_launcher" />
</item>
</layer-list>
SplashActivity
public class SplashActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_splash);
startActivity(new Intent(SplashActivity.this, MainActivity.class));
// close splash activity
finish();
}
}
Manifest
<activity android:name=".SplashActivity"
android:theme="#style/SplashTheme">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
This should be a comment. But i cannot put a comment. I have faced the same problem. Please check your size of image. Try to compress the image and try again it may help you. Please do let me know.
When we change brightness, its activity become transparent
So We can see the home screen/ another app that running behind. I want (100% same like Brightness seekbar) on my custom seekbar.
My App main activity background color is gray,
I want when seekbar drag: My activity becomes transparent and show background activities/Background Home screen,
When drag completes its back to normal on gray background.
My Research:
I search on transparent activities, I found many questions and many different styles and theme options.
Here is my last try:
<activity android:name=".Activity"
android:theme="#android:style/Theme.Translucent">
Every time when I follow StackOverflow answers, I get this error:
"You need to use a Theme.AppCompat theme (or descendant) with this
activity."
=>I also try, Transparent background color, Transparent drawable, transparent from manifest,
Result: Background show white, not transparent
I have just 1 main activity, with custom brightness seekbar and other options.
My Manifest file
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="st.package">
<uses-permission
android:name="android.permission.ACTION_MANAGE_OVERLAY_PERMISSION"/>
<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
<uses-permission android:name="android.permission.WRITE_SETTINGS" />
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity android:name=".MainActivity"
android:theme="#android:style/Theme.Translucent">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<service android:name="st.package.ChatHeadService"
android:exported="true">
</service>
<receiver android:name="MainActivity$switchButtonListener" />
</application>
MainActivity.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="overlayhead.overlayhead.MainActivity"
android:orientation="vertical"
android:windowIsTranslucent="true"
android:id="#+id/LinearLayout"
android:background="#android:color/transparent"
>
"You need to use a Theme.AppCompat theme (or descendant) with this activity."
It is because you need to use an AppCompat Theme. So you can define a custom theme in your styles.xml and use it as the theme for your desired Activity.
<style name="Theme.AppCompat.Translucent" parent="Theme.AppCompat.NoActionBar">
<item name="android:windowNoTitle">true</item>
<item name="android:windowBackground">#android:color/transparent</item>
<item name="android:colorBackgroundCacheHint">#null</item>
<item name="android:windowIsTranslucent">true</item>
<item name="android:windowAnimationStyle">#android:style/Animation</item>
</style>
in your manifest file, declare Theme.AppCompat.Translucent as your theme
<activity android:name=".MainActivity"
android:theme="#style/Theme.AppCompat.Translucent">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
for color transparency you should provide color code with 8 digits where first two digits just after # represent transparency in percentage so if you want white color with 50% transparency then you should write color value as "#50ffffff".
by using this technique in java you can do like this
yourLayout.setBackgroundColor(Color.parseColor("#"+i+"bdbdbd"));
where i will be from 00 to 99 as per value of i color transparency will be changed. so as per seekbar value increase and decrease value of i from 00 to 99.
In my application to avoid cold start I have defined a theme fro my splash activity and set its android:windowBackground property to my one of drawables but I am getting an inflation error.
tag requires a 'drawable' attribute or child tag defining a
drawable
background_splash.xml:
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item
android:drawable="?attr/colorPrimary"/>
<item>
<bitmap
android:gravity="center"
android:src="#mipmap/ic_launcher"/>
</item>
</layer-list>
styles:
<style name="SplashTheme" parent="Theme.AppCompat.Light.NoActionBar">
<item name="android:windowBackground">#drawable/background_splash</item>
</style>
Manifest:
<activity
android:name=".SplashActivity"
android:configChanges="orientation|keyboardHidden"
android:launchMode="singleTask"
android:screenOrientation="portrait"
android:theme="#style/SplashTheme"
>
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
I think the problem is in the background_splash.xml file in this line.
android:drawable="?attr/colorPrimary"/>
you have to change to this
android:drawable="#color/colorPrimary"/>
add your hex color code there and see the output.
I used getSupportActionBar().hide(); The result is as expected, action bar hidden during app testing but in XML design view its still visible and thats a problem because i need to visualise how the app looks. Any way i can make it disappear in the XML design view?
That's happening because you are programmatically disabling actionbar, and your IDE doesn't know if it happens or not.
Add this to res/values/style.xml (create one if you don't have one)
<style name="AppThemeNoTitleBar" parent="Theme.AppCompat.Light.NoActionBar">
<item name="android:windowNoTitle">true</item>
<item name="windowActionBar">false</item>
</style>
and put this under application tag in AndroidManifest.xml
android:theme="#style/AppThemeNoTitleBar"
so from the scratch (assuming you don't have anything, it should look like this.
res/values/style.xml
<resources>
<style name="AppThemeNoTitleBar" parent="Theme.AppCompat.Light.NoActionBar">
<item name="android:windowNoTitle">true</item>
<item name="windowActionBar">false</item>
</style>
</resources>
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.myapp" >
<application
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppThemeNoTitleBar" >
<activity
android:name=".MainActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
I think you have theme for your activity in your manifest. if you remove your theme that contains the actionbar, problem is solved.