问题
What is the simplest change that I can make to a new Blank Activity, as created by the latest version of Android Studio, to get the app to appear fullscreen?
I want to create a fullscreen Android application. I'm working with Android Studio. This post suggests that I add a line such as ...
android:theme="@android:style/Theme.Holo.Light.NoActionBar.Fullscreen"
... to the AndroidManifest.xml file, as shown below:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.lexogram.james.blackslate" >
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.lexogram.james.blackslate.MainActivity"
android:label="@string/app_name"
android:theme="@android:style/Theme.Holo.Light.NoActionBar.Fullscreen">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
When I do this, the app compiles but it crashes on launch. If I remove the line, the app runs fine, but with the action bar and a title bar, as also noted by other users.
This is my first attempt at creating an Android app, so my app is hardly altered from the original Hello World example.
EDIT: I created a new project, and made just this one change to it. Here is an extract from the error log:
FATAL EXCEPTION: main
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.lexogram.james.test/com.lexogram.james.test.MainActivity}: java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity.
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2669)...
NOTE: I am testing on a old Samsung SGH-T499Y, running Android 2.2 (Froyo)
回答1:
You are getting this problem because the activity you are trying to apply the android:theme="@android:style/Theme.Holo.Light.NoActionBar.Fullscreen">
to is extending ActionBarActivity which requires the AppCompat theme to be applied.
Extend your activity from Activity
rather than from ActionBarActivity
You might have to change your Java class accordingly little bit.
If you want to remove status bar too then use this before setContentView(layout)
in onCreateView
method
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
回答2:
Just add the following attribute to your current theme:
<item name="android:windowFullscreen">true</item>
For example:
<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
<!-- Customize your theme here. -->
<item name="colorPrimary">@color/orange</item>
<item name="colorPrimaryDark">@android:color/holo_orange_dark</item>
<item name="android:windowNoTitle">true</item>
<item name="android:windowFullscreen">true</item>
</style>
回答3:
just do this in your manifest file in your activity tag
android:theme="@style/Theme.AppCompat.Light.NoActionBar"
回答4:
in my case all works fine. See in logcat. Maybe logcat show something that can help you to resolve your problem
Anyway you can try do it programmatically:
public class ActivityName extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// remove title
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.main);
}
}
回答5:
Update Answer I added android:windowIsTranslucent
in case you have white screen in start of activity
just create new Style in values/styles.xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
<style name="AppTheme" parent="Theme.AppCompat.NoActionBar">
<!-- to hide white screen in start of window -->
<item name="android:windowIsTranslucent">true</item>
</style>
</resources>
from your AndroidManifest.xml add style to your activity
android:theme="@style/AppTheme"
to be like this
<activity android:name=".Splash"
android:theme="@style/AppTheme">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
回答6:
You can use the following codes to have a full page in android
Step 1 : Make theme in styles.xml section
<style name="AppTheme.Fullscreen" parent="AppTheme">
<item name="windowActionBar">false</item>
<item name="windowNoTitle">true</item>
</style>
Step 2 : Add theme on AndroidManifest.xml
<activity
android:name=“.Activity”
android:theme="@style/AppTheme.Fullscreen"/>
Step 3 : Java codes section
For example you can added following codes in to the onCreate() method.
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
回答7:
In onCreate
call
requestWindowFeature(Window.FEATURE_NO_TITLE); // for hiding title
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
回答8:
According to this document, add the following code to onCreate
getWindow().getDecorView().setSystemUiVisibility(SYSTEM_UI_FLAG_IMMERSIVE_STICKY |
SYSTEM_UI_FLAG_FULLSCREEN | SYSTEM_UI_FLAG_HIDE_NAVIGATION |
SYSTEM_UI_FLAG_LAYOUT_STABLE | SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION | SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
回答9:
I recently had the exact same issue and benefitted from the following post as well (in addition to Rohit5k2's solution above):
https://bsgconsultancy.wordpress.com/2015/09/13/convert-any-website-into-android-application-by-using-android-studio/
In Step 3, MainActivity
extends Activity
instead of ActionBarActivity
(as Rohit5k2 mentioned). Putting the NoTitleBar
and Fullscreen
theme elements into the correct places in the AndroidManifest.xml
file is also very important (take a look at Step 4).
来源:https://stackoverflow.com/questions/26543268/android-making-a-fullscreen-application