Develop Reference

Android icon gets picked up instead of notification icon

I am using FCM notification and I have set the following in my AndroidManifest.xml:
<meta-data
android:name="com.google.firebase.messaging.default_notification_icon"
android:resource="#drawable/splash" />
<!-- Set color used with incoming notification messages. This is used when no color is set for the incoming notification message. -->
<meta-data
android:name="com.google.firebase.messaging.default_notification_color"
android:resource="#color/splash_color" />
where splash is a transparent png image.
I also have the android app icon which I am setting like this in the same manifest file:
<application
android:name="io.flutter.app.FlutterApplication"
android:label="myapp"
android:icon="#drawable/ic_launcher">
What happens is that when a notification pops up, it picks up the ic_launcher instead of splash. If I replace ic_launcher and keep splash as my android icon, then I see the notification icon.
However, if I do it this way, then my app icon (which is now a transparent image) get's a black color as background which I don't want. I want the ic_launcher to be my background color. I fail to understand as to why the image defined at android:icon gets picked up for notification ?

For anyone struggling with this, please put the meta-tags right after the application tag. Do not put them under the activity tag. So something like this:
<application
android:name="io.flutter.app.FlutterApplication"
android:label="When Coin"
android:icon="#mipmap/ic_launcher">
<meta-data
android:name="com.google.firebase.messaging.default_notification_icon"
android:resource="#mipmap/ic_notification" />
<activity
android:name=".MainActivity"
android:launchMode="singleTop"
android:theme="#style/LaunchTheme"
android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|layoutDirection|fontScale|screenLayout|density"
android:hardwareAccelerated="true"
android:windowSoftInputMode="adjustResize">
<!-- This keeps the window background of the activity showing
until Flutter renders its first frame. It can be removed if
there is no splash screen (such as the default splash screen
defined in #style/LaunchTheme). -->
<meta-data
android:name="io.flutter.app.android.SplashScreenUntilFirstFrame"
android:value="true" />
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>
</application>

Don't want to show label and settings menu on my main screen

I wanted to show first screen (user's registration) without label and settings menu.
would someone please suggest me how?
Following is the code from manifest.xml
<activity
android:name=".LoginActivity"
android:label="#string/app_name"
android:screenOrientation="portrait" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />

The settings icon is the menu option in Android. To remove that just remove the onCreateOptionsMenu() method. But since you also want to remove the title, all in all what you are asking is to remove the action bar itself. That means you want a full screen activity and for that you can simply set a style in the android manifest.
<activity android:name=".LoginActivity"
android:label="#string/app_name"
android:theme="#android:style/Theme.NoTitleBar.Fullscreen"/>

Icon prolem in the settings

I have a little problem, my appliction always display my icon in the menu, home screen stc. My app is a wallpaper app, but in the wallpaper setting list always display a gray images without my icon. Where I can configure that?

In AndroidManifest.xml find application tag and add android:icon="#drawable/icon" replacing icon with id of your resource.
Something like this:
<activity
android:name="com.cotv.MainActivity"
android:label="#string/app_name"
android:screenOrientation="landscape"
android:theme="#style/QTheme.PageIndicatorDefaults" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>

Separate Launcher and Activity icon with Android

I've got a simple application with one single activity. Actually, the launcher icon is the same as the activity's one (the one in the top-left corner). I would like to put another icon in my activity without changing the launchers'one.
Here is my manifest :
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="com.natinusala.pebkac.MainActivity"
android:label="#string/app_name">
<intent-filter android:logo="#drawable/pebkac">
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
Actually, I can edit the launcher and activity icon by editing the android:icon="#drawable/ic_launcher" line. I can do it also in adding an android:icon into the <activity> but it modify too the launcher's icon.
How can I do to edit my activity's icon without touching the launcher's one ?
Thanks !

In your manifest, add android:logo="#drawable/ic_yourIcon" to either your Activity or Application tag.

How to not display Android application Name on every screen

I am finding that in my Android application, the name of the application is displaying on the top of every screen, consuming a line of valuable screen real estate.
I am using LinearLayouts
How can I get this not to display?

You can set it in the Activity/Application tags in the manifest XML:
android:theme="#android:style/Theme.NoTitleBar"
See more here (Styles and Themes).

Or write in onCreate yours Activity before setContentView():
requestWindowFeature(Window.FEATURE_NO_TITLE);

<application
android:icon="#drawable/ic_launcher"
android:label="#string/app_name" android:theme="#android:style/Theme.Black.NoTitleBar.Fullscreen">
<activity
android:name=".A"
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>
you can add this line android:theme="#android:style/Theme.Black.NoTitleBar.Fullscreen" to the manifest and make your application fullscreen and without title bar
and if you want to remove only the title bar and don't want to make the application full screen then you can use Theme.NoTitleBar

Change your activities' theme like that
<activity android:name=".Activity"
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>

android:theme="#style/AppTheme"
Above change in Manifest file didn't work for me.
requestWindowFeature(Window.FEATURE_NO_TITLE)
For this to work in your project you have to make one more change. Make your acivity extends Activity instead of AppCompactActivity which comes by default.
Thank You.