Android: making a fullscreen application

Android: making a fullscreen application

提问by James Newton

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?

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 postsuggests that I add a line such as ...

I want to create a fullscreen Android application. I'm working with Android Studio. This postsuggests that I add a line such as ...

android:theme="@android:style/Theme.Holo.Light.NoActionBar.Fullscreen"

android:theme="@android:style/Theme.Holo.Light.NoActionBar.Fullscreen"

... to the AndroidManifest.xml file, as shown below:

... 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.

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.

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:

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)

NOTE: I am testing on a old Samsung SGH-T499Y, running Android 2.2 (Froyo)

回答by Rohit5k2

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.

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 Activityrather than from ActionBarActivity

Extend your activity from Activityrather than from ActionBarActivity

You might have to change your Java class accordingly little bit.

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 onCreateViewmethod

If you want to remove status bar too then use this before setContentView(layout)in onCreateViewmethod

        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
        WindowManager.LayoutParams.FLAG_FULLSCREEN);

回答by Asaf Pinhassi

Just add the following attribute to your current theme:

Just add the following attribute to your current theme:

<item name="android:windowFullscreen">true</item>

For example:

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by user3637297

just do this in your manifest file in your activity tag

just do this in your manifest file in your activity tag

android:theme="@style/Theme.AppCompat.Light.NoActionBar"

回答by DMan

in my case all works fine. See in logcat. Maybe logcat show something that can help you to resolve your problem

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:

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by Mina Fawzy

Update AnswerI added android:windowIsTranslucentin case you have white screen in start of activity

Update AnswerI added android:windowIsTranslucentin case you have white screen in start of activity

just create new Style in values/styles.xml

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

from your AndroidManifest.xml add style to your activity

android:theme="@style/AppTheme"

android:theme="@style/AppTheme"

to be like this

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by Matin Soleimani

You can use the following codes to have a full page in android

You can use the following codes to have a full page in android

Step 1 : Make theme in styles.xml section

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

Step 2 : Add theme on AndroidManifest.xml

<activity
android:name=“.Activity”
android:theme="@style/AppTheme.Fullscreen"/>

Step 3 : Java codes section

Step 3 : Java codes section

For example you can added following codes in to the onCreate() method.

For example you can added following codes in to the onCreate() method.

getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);

回答by wannik

According to this document, add the following code to onCreate

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by Jawad Zeb

In onCreatecall

In onCreatecall

requestWindowFeature(Window.FEATURE_NO_TITLE); // for hiding title

getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, 
                            WindowManager.LayoutParams.FLAG_FULLSCREEN);

回答by Ali Akram

Simply declare in styles.xml

Simply declare in styles.xml

  <style name="AppTheme.Fullscreen" parent="AppTheme">
    <item name="windowActionBar">false</item>
    <item name="windowNoTitle">true</item>
    <item name="android:windowFullscreen">true</item>
  </style>

Then use in menifest.xml

Then use in menifest.xml

    <activity
        android:name=".activities.Splash"
        android:theme="@style/AppTheme.Fullscreen">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>

Chill Pill :)

Chill Pill :)

回答by Jitin

If you Checkout the current Android Studio. You could create a New Activity with the Full-screen template. If you Create such an Activity. You could look into the basic code that Android Studio uses to switch between full-screen and normal mode.

If you Checkout the current Android Studio. You could create a New Activity with the Full-screen template. If you Create such an Activity. You could look into the basic code that Android Studio uses to switch between full-screen and normal mode.

This is the code I found in there. With some minor tweaks I'm sure you'll get what you need.

This is the code I found in there. With some minor tweaks I'm sure you'll get what you need.

public class FullscreenActivity extends AppCompatActivity {
    private static final boolean AUTO_HIDE = true;
    private static final int AUTO_HIDE_DELAY_MILLIS = 3000;
    private static final int UI_ANIMATION_DELAY = 300;
    private final Handler mHideHandler = new Handler();
    private View mContentView;
    private final Runnable mHidePart2Runnable = new Runnable() {
        @SuppressLint("InlinedApi")
        @Override
        public void run() {
            // Delayed removal of status and navigation bar

            // Note that some of these constants are new as of API 16 (Jelly Bean)
            // and API 19 (KitKat). It is safe to use them, as they are inlined
            // at compile-time and do nothing on earlier devices.
            mContentView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LOW_PROFILE
                    | View.SYSTEM_UI_FLAG_FULLSCREEN
                    | View.SYSTEM_UI_FLAG_LAYOUT_STABLE
                    | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY
                    | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
                    | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION);
        }
    };
    private View mControlsView;
    private final Runnable mShowPart2Runnable = new Runnable() {
        @Override
        public void run() {
            // Delayed display of UI elements
            ActionBar actionBar = getSupportActionBar();
            if (actionBar != null) {
                actionBar.show();
            }
            mControlsView.setVisibility(View.VISIBLE);
        }
    };
    private boolean mVisible;
    private final Runnable mHideRunnable = new Runnable() {
        @Override
        public void run() {
            hide();
        }
    };
    private final View.OnTouchListener mDelayHideTouchListener = new View.OnTouchListener() {
        @Override
        public boolean onTouch(View view, MotionEvent motionEvent) {
            if (AUTO_HIDE) {
                delayedHide(AUTO_HIDE_DELAY_MILLIS);
            }
            return false;
        }
    };
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_fullscreen);

        mVisible = true;
        mControlsView = findViewById(R.id.fullscreen_content_controls);
        mContentView = findViewById(R.id.fullscreen_content);


        // Set up the user interaction to manually show or hide the system UI.
        mContentView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                toggle();
            }
        });

        // Upon interacting with UI controls, delay any scheduled hide()
        // operations to prevent the jarring behavior of controls going away
        // while interacting with the UI.
        findViewById(R.id.dummy_button).setOnTouchListener(mDelayHideTouchListener);
    }
    @Override
    protected void onPostCreate(Bundle savedInstanceState) {
        super.onPostCreate(savedInstanceState);

        // Trigger the initial hide() shortly after the activity has been
        // created, to briefly hint to the user that UI controls
        // are available.
        delayedHide(100);
    }
    private void toggle() {
        if (mVisible) {
            hide();
        } else {
            show();
        }
    }
    private void hide() {
        // Hide UI first
        ActionBar actionBar = getSupportActionBar();
        if (actionBar != null) {
            actionBar.hide();
        }
        mControlsView.setVisibility(View.GONE);
        mVisible = false;

        // Schedule a runnable to remove the status and navigation bar after a delay
        mHideHandler.removeCallbacks(mShowPart2Runnable);
        mHideHandler.postDelayed(mHidePart2Runnable, UI_ANIMATION_DELAY);
    }
    @SuppressLint("InlinedApi")
    private void show() {
        // Show the system bar
        mContentView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
                | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION);
        mVisible = true;

        // Schedule a runnable to display UI elements after a delay
        mHideHandler.removeCallbacks(mHidePart2Runnable);
        mHideHandler.postDelayed(mShowPart2Runnable, UI_ANIMATION_DELAY);
    }
    private void delayedHide(int delayMillis) {
        mHideHandler.removeCallbacks(mHideRunnable);
        mHideHandler.postDelayed(mHideRunnable, delayMillis);
    }
}

Now I went further to checkout how this could be done in a more simple fashion. Making changes to the AppThemestyle in your styles.xmlfile would be most helpful. This changes all your activities to a Full Screen view.

Now I went further to checkout how this could be done in a more simple fashion. Making changes to the AppThemestyle in your styles.xmlfile would be most helpful. This changes all your activities to a Full Screen view.

<item name="windowActionBar">false</item>
<item name="windowNoTitle">true</item>
<item name="android:windowFullscreen">true</item>

If you want only some activities to look Full Screen, you could create a new AppTheme that extends your current app theme and include the above code in that new style that you created. This way, you just have to set style=yournewappthemein the manifest of whichever activity you want to go Full Screen

If you want only some activities to look Full Screen, you could create a new AppTheme that extends your current app theme and include the above code in that new style that you created. This way, you just have to set style=yournewappthemein the manifest of whichever activity you want to go Full Screen