full screen application android

Question

i have two questions:

1. one how can i run my application in full screen
2. how video players run videos in full screen.

i have tried alot an

Answer 1

I think you cant hide the system bar in android 4.0 > (only in tablets, in phones you should be able to)

What you can do is to hide the icons and to disable some buttons(everyone except home)

You can try this:

        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
        getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LOW_PROFILE);              

        }

Also for disabling the buttons:

This is for back button:

  public boolean onKeyDown(int keyCode, KeyEvent event) {
    return false;
  }

This for the menu:

@Override
public void onWindowFocusChanged(boolean hasFocus) {

        try
        {
           if(!hasFocus)
           {
                Object service  = getSystemService("statusbar");
                Class<?> statusbarManager = Class.forName("android.app.StatusBarManager");
                Method collapse = statusbarManager.getMethod("collapse");
                collapse .setAccessible(true);
                collapse .invoke(service);
           }
        }
        catch(Exception ex)
        {
        }

}

Answer 2

Video Players run in full screen by setting the

myView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION);

setFlags() before setContentView(View)

This will show the system bar on any user interaction, just like video players do.

The closest you can get to running your app full screen is by setting in Lights Out mode, the system buttons will appear as dots.

To use the lights out mode just use any view in your activity and call

anyView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION);

For Hiding the navigation bar use this in your onStart() so that every time you get to that activity it will be in full screen mode.

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

I hope this helps !

Answer 3

go to your manifest and add this to your activity

<activity
        android:name="yourPackage.yourActivity"

        android:theme="@android:style/Theme.Black.NoTitleBar">

Answer 4

-To hide Status bar:

A great solution I found for that issue, setting each Activity theme & windowSoftInputMode to the following values :

<activity   android:name=".MyActivity"
            android:theme="@android:style/Theme.NoTitleBar.Fullscreen" 
            android:windowSoftInputMode="adjustResize">  <!-- theme : to set the activity to a full screen mode without a status bar(like in some games) -->
</activity>                                              <!-- windowSoftInputMode : to resize the activity so that it fits the condition of displaying a softkeyboard -->

for more info refer here.

-To hide Notification bar:

There are Two ways :

1- root your device, then open the device in adb window command, and then run the following:

 adb shell >
 su >
 pm disable com.android.systemui >

and to get it back just do the same but change disable to enable.

2- add the following line to the end of your device's build.prop file :

qemu.hw.mainkeys = 1

then to get it back just remove it.

and if you don't know how to edit build.prop file:

• download EsExplorer on your device and search for build.prop then change it's permissions to read and write, finally add the line.
• download a specialized build.prop editor app like build.propEditor.
• or refer to that link.

Answer 5

I made 2 layouts one for regular size and one for full screen and inside full scrreen I get the devices size and and assign it to video player

Display display = getWindowManager().getDefaultDisplay();
Point size = new Point();
display.getRealSize(size);
int w=size.x;
int h=size.y;
videoPlayer.setFixedSize(w, h);

Answer 6

Android Version: 4.2.2 - Device: Vega Tablet

Android App to Hide Status and System Bar and displaying complete screen I followed these steps.

AndroidManifest.xml

   <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name">
        <activity
            android:name=".MainActivity"
            android:label="@string/app_name"
            android:theme="@android:style/Theme.NoTitleBar.Fullscreen">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

MainActivity.java

super.onCreate(savedInstanceState);
getWindow().getDecorView().setSystemUiVisibility(0x10);
setContentView(R.layout.activity_main);

Above code perfectly worked for my app.