Develop Reference

Android orientation change even after locking it in system settings

as in the topic, ive got a trouble with locking screen orientation after its been locked in device's settings. Its a landscape app. Ive read couple threads about similar problem but havent got any revelant answer.
Thanks in advance
Mac

You can add android:screenOrientation="landscape" in your activity tag to specify the mode of screen orientation in your manifest file
<activity
android:name="com.xyz.myapp.SplashActivity"
android:label="#string/app_name"
android:screenOrientation="landscape" >
Hope it helps .

Add setRequestedOrientation in the onCreate method like below
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
this.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
setContentView(R.layout.homepage);

This would set to landscape if auto_rotate is off, otherwise if would rotate normally as long as it wasn't set to land/port in the manifest.
if(android.provider.Settings.System.getInt(getContentResolver(),Settings.System.ACCELEROMETER_ROTATION, 0) != 1){
this.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
}

Hide the Android Notification bar on a Sencha Touch 2 app

I've successfully got my application compiled into an apk file, and deployed to my Android devices.
But when I run it there, the notification bar is present and I'd like it to be fullscreen, without the notification bar.
This is the bar at the top of the screen, with the battery usage, wifi/3G connection, new email icon, etc.
How do we hide this in our compiled apps with Sencha Touch 2?
I have set fullscreen: true in the config of the first view which is loaded (the log in screen), and have also set:
Ext.application({
viewport: {
autoMaximize: true
}
});

You could change this in your AndroidManifest.xml:
<application>
<activity
android:theme="#android:style/Theme.NoTitleBar.Fullscreen" >
</activity>
...
</application>

You can actually modify the AndroidManifest.xml template in the SenchaCmd to get this, as explained in the Sencha forums.
That file will be in Sencha/Cmd/<CmdVersion>/stbuild/st-res/android/AndroidManifest.xml. You need to set the theme property on the application tag like this: android:theme="#android:style/Theme.NoTitleBar"
with the whole tag looking like:
<application android:icon="#drawable/icon" android:label="%s" android:theme="#android:style/Theme.NoTitleBar">
However, this solution is still extremely crappy and I'd love to see something that works without patching Sencha's code.

Simply add this to make the screen fullscreen this.setTheme(android.R.style.Theme_NoTitleBar_Fullscreen); before super.onCreate(savedInstanceState);
OR
add this.requestWindowFeature(Window.FEATURE_NO_TITLE); and
this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN) before setContentView
For example:
#Override
public void onCreate(Bundle savedInstanceState){
/**sets Theme and Style (must be set BEFORE super.onCreate)*/
this.setTheme(android.R.style.Theme_NoTitleBar_Fullscreen);
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
OR
#Override
public void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
/**Changes Window. Removes title and/or notification bar (must be set BEFORE setContentView)*/
this.requestWindowFeature(Window.FEATURE_NO_TITLE);
this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.main);
(Or you can do it via the Manifest as what homer_simpson said.)

Android app full screen

Got this app running in kiosk mode and would like to run it on full screen.
Already got rid of the application's grey title bar, but still got the home, volume, back and other buttons on the top bar as you can see in the picture.
The device is running android 2.2 firmware.
Any help is greatly appreciated!

So there is more approaches:
First, you should specify this feature in your Manifest.xml
android:theme="#android:style/Theme.Black.NoTitleBar.Fullscreen"
Or in your onCreate method work both these approaches:
this.requestWindowFeature(Window.FEATURE_NO_TITLE);
or
this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);

The tablet you are running on is running a hacked version of Android, one that does not comply with the Compatibility Definition Document. As a result, you probably cannot get rid of that bar, unless you replace the firmware with something else.
The recommendations that the other provided is the right answer for compatible Android devices.

Make Your activity to look something like this in manifest
<activity
android:name=".HelloActivity"
android:label="#string/laptop"
android:theme="#android:style/Theme.NoTitleBar.Fullscreen" >

In android manifest use this line
<activity android:name=".yourActivityName"
android:theme="#android:style/Theme.Black.NoTitleBar.Fullscreen">
and in your class use this line in oncreate method
requestWindowFeature(Window.FEATURE_NO_TITLE);
this code works fine for android 2.2 i have tested and its working.

#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.activity);

Android: Use FLAG_FULLSCREEN and TYPE_KEYGUARD together

I'm trying to do an Android-Tablet app for presentations on trade fairs etc. I don't want to upload the app to the app store, only use it on my tablet.
I try to run the app in ful screen mode (without status bar) with:
requestWindowFeature(Window.FEATURE_NO_TITLE);
this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN);
Works great. I try to disable the home button with:
#Override
public void onAttachedToWindow() {
super.onAttachedToWindow();
this.getWindow().setType(WindowManager.LayoutParams.TYPE_KEYGUARD);
}
in my OnCreate-Method. Works great.
But if I try to use both in one app, only disabling the home button still works, any idea what i can do about this?
Thank you!

Try declaring the activity as fullscreen in AndroidManifest.xml, and then doing what you already do to capture the home button
<activity android:name="..." android:label="..."
android:theme="#android:style/Theme.Black.NoTitleBar.Fullscreen" />

orientation is not working in 2.3.3?

I have prepared one application.My application will be supports both landscape and portrait.
When i change the orientation from portrait to landscape it is working fine,But when i change landscape to portrait it is not working.my code is,
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
System.out.println("orientation---"+getResources().getConfiguration().orientation);
if (newConfig.orientation == Configuration.ORIENTATION_LANDSCAPE) {
setContentView(R.layout.main);
System.out.println("landscape-----");
} else if (newConfig.orientation == Configuration.ORIENTATION_PORTRAIT) {
setContentView(R.layout.main);
System.out.println("portrait-----");
}
}
Every time time it taking only landscape mode.I made mistake some where. please help.
System.out.println("orientation---"+getResources().getConfiguration().orientation);
The above SOP is printing 2 means landscape.Please help me.(i am using 2.3.3)

You might be hitting this bug "Orientation does not change from landscape to portrait on Emulator on 2.3"
More than 45 people are facing the same issue with the androidd 2.3 emulator
http://code.google.com/p/android/issues/detail?id=13189
Host OS: Windows 7 SDK tools version : revision 8 Eclipse version: 3.5
ADT plug-in version: 8.0.1 Platform targeted by your project: 2.3
Version of the platform running in the emulator:2.3
STEPS TO REPRODUCE:
1. Activity 1 (no screen orientation) - Activity 2 (screen orientation = landscape)
Going from Activity 1 to 2 works fine. Pressing back changes the orientation of Activity 1 to landscape
EXPECTED RESULTS: Activity 1 should be in portrait mode
OBSERVED RESULTS: Behavior is observed only in gingerbread, works as
expected on froyo.

The issue is with the android:configChanges="orientation|keyboardHidden" .
if you remove |keyboardHidden from the androidmanifest.xml, then the onConfigurationChanged is only fired when you rotate from landscape to portrait, not when you go from portrait to landscape (at least in the default emulator).
Hope this helps.
EDIT: DID some sample program to test it and works fine for me.
CheckOrientationActivity.java
import android.content.res.Configuration;
import android.os.Bundle;
import android.util.Log;
import android.widget.Toast;
public class CheckOrientationActivity extends Activity {
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.second_layout);
Log.i("DayElevenActivity", "onCreate Start");
}
#Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
Log.i("DayElevenActivity", "onConfigurationChanged");
// Checks the orientation of the screen
if (newConfig.orientation == Configuration.ORIENTATION_LANDSCAPE) {
Log.i("ORIENTATION_LANDSCAPE", "ORIENTATION_LANDSCAPE");
Toast.makeText(getBaseContext(), "ORIENTATION_LANDSCAPE", Toast.LENGTH_SHORT).show();
} else if (newConfig.orientation == Configuration.ORIENTATION_PORTRAIT) {
Log.i("ORIENTATION_PORTRAIT", "ORIENTATION_PORTRAIT");
Toast.makeText(getBaseContext(), "ORIENTATION_PORTRAIT", Toast.LENGTH_SHORT).show();
}
}
}
In AndroidManifest.xml
<activity
android:label="#string/app_name"
android:configChanges="**orientation|keyboardHidden**"
android:name=".CheckOrientationActivity" >
<intent-filter >
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
Corresponding Logs when i run and change the orientation
03-05 18:54:31.644: I/CheckOrientationActivity (20314): onCreate Start
03-05 18:54:35.014: I/CheckOrientationActivity (20314): onConfigurationChanged
03-05 18:54:35.014: I/ORIENTATION_LANDSCAPE(20314): ORIENTATION_LANDSCAPE
03-05 18:54:41.984: I/CheckOrientationActivity (20314): onConfigurationChanged
03-05 18:54:41.984: I/ORIENTATION_PORTRAIT(20314): ORIENTATION_PORTRAIT

There's multiple reasons why this could happen, hard to tell without seing more code.
Here's some pointers:
you haven't forced the layout to some particular orientation via manifest file or programatically (something like <activity android:screenOrientation="portrait"> in your manifest)
by default the Activity is restarted when configuration changes happend. If you want to NOT have your activity restarted when the orientation changes, you need to use
android:configChanges="orientation"
on your activity's configuration in the manifest.
the above point will in fact make Android call your activity's onConfigurationChanged(Configuration) method when the orientation changes
==update==
Also, if you have the same layout (like "main") declared in layout-land and layout-port you only need to specify that you want to use that layout in the beginning:
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
}
and that's it. THERE IS NO NEED to also implement the
public void onConfigurationChanged(Configuration newConfig) {
//...
}
method as well. For the sake of chosing the correct layout based on orientation all you have to do is declare the same layout in those two folders.
(Also, there is NO NEED to add the android:configChanges="orientation" to your manifest, apparently it's on by default). I've tried all this just now, works ok