I am completely baffled. I created an application with minSDK=4 and targetSDK=11. Compiled and ran on the Xoom tablet. I am not getting an Action Bar and cannot figure out what I have done wrong. I have been staring at the screen for hours and don't know what I have done that would have caused the bar to disappear. Help! Any suggestions on why I am not seeing the Action Bar?
You need to declare android:theme="#android:style/Theme.Holo" for Activity in Manifest xml.
The dev guide says like you only need to set the target SDK version, but it does not work.
I'm quoting from here:
"If you are using the Support Library APIs for the action bar, then you must use (or override) the Theme.AppCompat family of styles (rather than the Theme.Holo family, available in API level 11 and higher)."
I used android:theme="#style/Theme.AppCompat" in my manifest and the action bar appeared.
Romulus' answer, forcing the App to use the Holo theme will work but it results in a compile error if your minSDK is less than 11.
Check if you have defined a theme in the AndroidManifest:
android:theme="#style/XXXXXXXXXXXXXXXXX"
That means you're forcing the App to use a particular theme, so the action bar might not appear on Honeycomb or higher devices (it depends if the theme specifies an action bar). Delete this statement to cause the App to use the default device theme, so the Settings menu appears on pre-Honeycomb devices and the action bar appears on post-Honeycomb devices. Job done. Hope this helps.
Related
I am using the theme Theme.MaterialComponents.DayNight.NoActionBar (docs) for my Android app.
I am also calling getActionBar().hide() in the MainActivity.
On nearly all my devices, the Action Bar is not displaying. However on one device, a Pixel 6 running Android 12, I still see the Action Bar. I am sure I've installed the latest version of my app.
Any ideas why the Action Bar is still hanging around on this one device?
I had the same problem (I thought) until I realized that I had set the .NoActionBar style in my values/themes.xml but NOT in my values-night/themes.xml and the device with the "issue" was in dark mode.
Solution:
Set Theme.MaterialComponents.DayNight.NoActionBar in both values/themes.xml and values-night/themes.xml.
It is a sample on the book.
I'm trying to hide the action bar by setting the theme to Theme.Holo.NoActionBar:
<activity
android:theme="#android:style/Theme.Holo.NoActionBar"
... >
...
</activity>
However, when I tried this I get the following exception:
You need to use a Theme.AppCompat theme (or descendant) with this activity.
What does this mean? How can I get around this?
I'm new to android programming.
Thanks!
I believe this message is because you're using a compatibility library, or you've set your minimum SDK level too low. Basically the Holo theme didn't exist in the API version you're trying to maintain compatibility with.
ActionBarActivity requires a Theme.AppCompat theme as it assumes you want an Action Bar (hence its name). If you do not want an action bar, your activity should extend from FragmentActivity which contains everything but the Action Bar from ActionBarActivity. Then you can use Theme.Holo.NoActionBar without issue.
In my android app, which is just a webview displaying a responsive web site, I want to remove the title bar so I add this to the application section of the manifest XML.
android:theme="#android:style/Theme.NoTitleBar"
The problem is, I get two totally different ProgressDialog UI treatments. The one with the title bar is much nicer so I would like to keep it, but I don't want a title bar.
I believe this relates to the theme. I want to keep the theme, just not the title bar... at least I think. How do I keep the nicer styling, and hide the title bar instantly (not programmatically once the activity starts, that shows the title bar briefly)?
The problem is that Theme.NoTitleBar comes from pre-Honeycomb era, so it shows a pre-Honeycomb dialog.
If your app is API 11 or up you can simply switch by the Holo version of it (I honestly don't remember the name).
Or to support both older and newer device you'll have to use this type of approach Different Theme for different Android SDK versions to apply Theme.NoTitleBar to old devices and its holo counterpart for newer devices.
happy coding.
I know, this sounds dumb, but bear with me.
I use the following
android:minSdkVersion="8"
android:targetSdkVersion="17"
android:Theme.Holo"
When I run my app on 2.2 emulator, the menu button brings up my menu.
Whhen I run my app on 4.2 emulator, should the action bar not automatically be activated? I can see program icon + title. I have added some menu items like this:
<item android:id="#+id/itemShare" android:title="#string/titleShare"
android:icon="#android:drawable/ic_menu_share"
android:showAsAction="ifRoom"></item>
I then have defined
onCreateOptionsMenu
all my activies inherit from.
Yet, I see nothing "action bar" icons when running my app in 4.2 emulator. I must be missing something obvious.
I am very new to Android and Eclipse, but I am slightly confused of above. The way I do it, should that not be the way to get pre/post honeycomb compability assuming one does not want to use ActionbarSherlock?
Whhen I run my app on 4.2 emulator, should the action bar not automatically be activated?
Yes.
I can see program icon + title.
That is the action bar.
Yet, I see nothing "action bar" icons when running my app in 4.2 emulator. I must be missing something obvious.
Your emulator has decided that there is insufficient room to show the icons, so they are in the overflow. Depending on your emulator configuration, you activate the overflow by pressing the MENU button or by pressing the ... affordance in the action bar on the right.
The way I do it, should that not be the way to get pre/post honeycomb compability assuming one does not want to use ActionbarSherlock?
Yes.
I have a non-market app that was built to run on a specific device. Originally, this was on a device running 2.2, but now the app is targeting a specific device on 3.1 and I am adding in support for the Action Bar.
One of the apps Activities is required to be full-screen and have hidden the status bar and the Action Bar. This is achieved using the following in the manifest:
<activity
android:name=".activity.EditorActivity"
android:label="#string/activity_edit"
android:theme="#style/Canvas">
Which references this style:
<style name="Canvas" parent="#android:style/Theme.NoTitleBar.Fullscreen">
<item name="android:windowBackground">#color/bg_white</item>
</style>
So, after moving to 3.1, the effect works, in that the Activity is fullscreen, and everything is hidden as needed, but this of course hides the options menu from populating the Action Bar.
I know that if I leave the android:targetSdkVersion="8", the options menu is shown in the bottom navigation, but this seems like a bit of a hack - is there any other way or 'best practice' for this? I basically have to set android:targetSdkVersion="12" to ensure the app works and isn't put onto older devices so this won't be a permanent solution.
I've decided to stop trying to swim upstream and have switched to using a translucent Action Bar that is overlaid - it works perfectly and is exactly what I had been doing prior to 3.x with my custom solution.
Custom Translucent Android ActionBar