In my application I have a lot of layers and instead of setting a background image to each of them, I want to set a background once and for all. How can I do that?
Take a look at Apply a theme to an Activity or application to apply the background image across the whole application.
Add android:windowBackground to your theme:
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
<!-- Customize your theme here. -->
<item name="colorPrimary">#color/colorPrimary</item>
<item name="colorPrimaryDark">#color/colorPrimaryDark</item>
<item name="colorAccent">#color/colorAccent</item>
<item name="android:windowBackground">#color/colorPrimaryDark</item>
</style>
And of course make sure your manifest uses the theme for you application:
<?xml version="1.0" encoding="utf-8"?>
<manifest package="com.package.name"
xmlns:android="http://schemas.android.com/apk/res/android">
<application
android:theme="#style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>
</application>
</manifest>
Related
I am a beginner of android,Kotlin,
I don't know how to remove the top app bar in a specific and all activities.
I have a splash screen and a new activity
Below is my style's code,I already imported a material design in styles.xml
I don't know what is the way to remove the top app bar in styles.xml
<resources>
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.MaterialComponents">
<!-- Customize your theme here. -->
<item name="colorPrimary">#color/colorPrimary</item>
<item name="colorPrimaryDark">#color/colorPrimaryDark</item>
<item name="colorAccent">#color/colorAccent</item>
</style>
</resources>
Android Manifest file
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.shanjostech.newsample">
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:roundIcon="#mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity android:name=".Main_Screen"></activity>
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
Add theme attribute to the activity where you want to hide appbar in manifest file
<activity
android:name="com.mvvm.Activity"
android:label="#string/app_name"
android:theme="#style/NewTheme">
</activity>
then create a new theme in style.xml with parent as Theme.AppCompat.NoActionBar
<style name="NewTheme" parent="Theme.AppCompat.NoActionBar">
</style>
This question is already answered here:-
How to remove it from all activities
How to remove it from specific activity
In Case if none of them work fine for you then try this:-
For specific activity,
Set theme in manifest file as mentioned below:-
<activity android:name=".activity.ContinueLoginActivity"
android:theme="#style/Theme.AppCompat.Light.NoActionBar"
android:screenOrientation="portrait" />
Programmatically :-
Kotlin:
supportActionBar?.hide()
Java:
if (getSupportActionBar() != null) {
getSupportActionBar().hide();
}
for remove it from all activities change .DarkActionBar by .NoActionBar in style.xml file:-
<resources>
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
<!-- Customize your theme here. -->
<item name="colorPrimary">#color/colorPrimary</item>
<item name="colorPrimaryDark">#color/colorPrimaryDark</item>
<item name="colorAccent">#color/colorAccent</item>
</style>
i define two theme in styles.xml
AppTheme1 and AppTheme2:
<resources>
<!-- Base application theme. -->
<style name="AppTheme1" parent="Theme.AppCompat.Light.NoActionBar">
<!-- Customize your theme here. -->
<item name="colorPrimary">#color/colorPrimary</item>
<item name="colorPrimaryDark">#color/colorPrimaryDark</item>
<item name="colorAccent">#color/colorAccent</item>
</style>
<style name="AppTheme2" parent="Theme.AppCompat.Light.NoActionBar">
<!-- Customize your theme here. -->
<item name="colorPrimary">#00ff00</item>
<item name="colorPrimaryDark">#ff00ff</item>
<item name="colorAccent">#0000ff</item>
</style>
</resources>
when i change theme in application tag inside AndroidManifest.xml
my app theme doesn't any change and the app only use colors.xml and not styles.xml.
for example my manifest file:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.maneshtsoft.blackdictionary">
<application
android:allowBackup="true"
android:icon="#mipmap/favicondark"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme2">
<!-- OR AppTheme1 does not matter -->
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
just say that i use toolbar and AppCompactActivity maybe help to answer.
thanks.
The problem may be the cache of InstantRun.
Did you try "Clean & Rerun"? If you use AndroidStudio 2.1 or higher, Select Menu -> Run -> Clean & Rerun.
I am new to android development and was developing an overflow menu. I had to change the theme of my project to holo.light to make the action bar visible, but when I try to do so following error occurs ;
After a lot of searching on the internet I realised that only the themes that begin with AppCompat.something.something were working properly. All the rest were not rendered.
Please help.
styles.xml
<resources>
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
<!-- Customize your theme here. -->
<item name="colorPrimary">#color/colorPrimary</item>
<item name="colorPrimaryDark">#color/colorPrimaryDark</item>
<item name="colorAccent">#color/colorAccent</item>
</style>
<style name="AppTheme.NoActionBar">
<item name="windowActionBar">false</item>
<item name="windowNoTitle">true</item>
</style>
<style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar" />
<style name="AppTheme.PopupOverlay" parent="ThemeOverlay.AppCompat.Light" />
</resources>
androidmanifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.naveenjain.test7">
<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:label="#string/app_name"
android:theme="#style/AppTheme.NoActionBar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
You are getting this error because android studio is not able to render correct theme for this layout.
This is android studio problem. if you run this application it will run successfully. to solve this problem
Select Design tab in android studio when you open layout.
2.Select Theme option from tool bar area in android studio.
A window will appear choose project theme.
Your all project theme appear in right side section.
Select appropriate theme.
these steps will solve this error.
I would like to set the background of my activity to an image without setting the ActionBar background to the same image. I started with a "Hello, world" application with EditText, Button and an ActionBar and the following styles added...
<resources>
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
<item name="android:actionBarStyle">#style/MyActionBarTheme</item>
<item name="android:windowActionBarOverlay">true</item>
<item name="windowActionBarOverlay">true</item>
<item name="android:background">#drawable/bg20140804_090625_640_960</item>
</style>
<style name="MyActionBarTheme" parent="Theme.AppCompat.Light.DarkActionBar">
<item name="android:background">#android:color/transparent</item>
</style>
</resources>
Here is the application manifest...
<uses-sdk android:minSdkVersion="11" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<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>
<activity
android:name=".DisplayMessageActivity"
android:label="#string/title_activity_display_message"
android:parentActivityName=".MainActivity" >
<meta-data
android:name="android.support.PARENT_ACTIVITY"
android:value="com.company.android.mysecondapplication.MainActivity" />
</activity>
</application>
The problem I am seeing is that the background image is shown in the ActionBar (distorted). I would like the ActionBar to be semi-transparent and for the background of the Activity to show through.
This is what it looks like, notice the ActionBar background. Also notice the icons are way over to the left when normally (i.e., without the custom style), they would be to the right.
Lastly, if you change the styles to the following, the application looks like the tutorial.
<resources>
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
</style>
</resources>
Thanks
Change
<item name="android:background">#color/your_color</item>
with
<item name="android:windowBackground">#color/your_color</item>
You can use #drawable/your_drawable of course.
Set the background image to the layout of your Activity and not to the Theme, that will result in only the Activity having the image as the background.
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="#drawable/bg20140804_090625_640_960" >
</LinearLayout>
We're developing an android application that has several different tabs. We've been trying to apply a theme to entire application, and we've also tried applying a theme to specific activities. Neither has any effect.
I have this style-file:
<?xml version="1.0" encoding="UTF-8"?>
<resources>
<style name="recapmain">
<item name="android:buttonStyle">#style/recapButton</item>
<item name="android:textViewStyle">#style/recapText</item>
</style>
<style name="recapButton" parent="android:style/Widget.Button">
<item name="android:textSize">30sp</item>
<item name="android:background">#FF0000</item>
</style>
<style name="recapText">
<item name="android:textSize">30dip</item>
<item name="android:textColor">#FFFFFF</item>
</style>
</resources>
The application tag in the manifest file looks like this:
<application android:icon="#drawable/icon" android:label="#string/app_name" android:theme="#style/recapmain">
<activity android:name="appname"
android:label="#string/app_name"
android:theme="#android:style/Theme.NoTitleBar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
This doesn't work. The application simply does not react to the theme. If I set a specific view to use one of the styles, it's works perfectly. So, I can do this in the xml file for an activity:
<Button
android:id="#+id/OverviewButtonYears"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/years"
android:onClick="years"
style="#style/recapButton"
/>
That will style the button appropriately.
we've also tried applying the theme to a specific activity tag, with no result.
Now, what does work, is removing the intent-filter-tag from the application tag, and putting it in an activity tag, like this:
<activity android:name=".PolicyTab" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
That starts the specific activity only, and it does have the appropriate theme.
My question then, is, why? We've gussed that it has something to do with the tabs, since starting only one activity enables the theme. What do we have to do to get it to work with tabs?
If you wany your main application theme to be android:theme="#android:style/Theme.NoTitleBar" with customized control styles, then you should extend that theme with your preferences:
<style name="recapmain" parent="#android:style/Theme.NoTitleBar">
This line will adopt the styles of the parent theme into recapmain, and inside you can write your own preferences (as you already have for buttonStyle and textViewStyle).
Inside your androidManifest.xml you set the application theme to your custom style:
<application android:icon="#drawable/icon" android:label="#string/app_name"
android:theme="#style/recapmain">
Update
Your styles.xml should contain:
<style name="recapmain" parent="#android:style/Theme.NoTitleBar">
<item name="android:buttonStyle">#style/recapButton</item>
<item name="android:textViewStyle">#style/recapText</item>
</style>
<style name="recapButton" parent="android:style/Widget.Button">
<item name="android:textSize">30sp</item>
<item name="android:background">#FF0000</item>
</style>
<style name="recapText" parent="android:style/Widget.TextView">
<item name="android:textSize">30dip</item>
<item name="android:textColor">#FFFFFF</item>
</style>