android-orientation

问题 In my Android application I have a main activity "MyActivity" which overrides onConfigurationChanged() method. Within that method I check for a change in the orientation, if changed to landscape then I call another activity: @Override public void onConfigurationChanged(Configuration newConfig) { if(newConfig.orientation == Configuration.ORIENTATION_LANDSCAPE) { super.onConfigurationChanged(newConfig); startActivity(new Intent(this, BaseFullScreenActivity.class)); } } Then when I change my

问题 Is there a way to force the tablet to be in landscape mode as default orientation when the user start's my app. Is there a way to do this with theming or something like that, so the user doent see orientation change when he is starting the app? Note: the same app is (should be) in portrait mode for phones For now I have a boolean values folder refs.xml(both values and values-large) with different value for tablet and phone, but the user can see that the app is rotating Code: public static

问题 The Fragments in my app are not re-added to the activity's view when the device is rotated. If i understand the documentation (and similar questions here on SO) correctly, this should be handled be the fragment manager (without having to specify android:configChanges in my manifest). My Activity looks like: public class MainActivity extends SherlockFragmentActivity { public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main);

问题 How can I switch to another activity when rotating the phone? My requirements: Activity A and B are portrait only Acitvity L is landscape only When landscape mode of A or B would be displayed, L is started instead. When portrait of L would be displayed, A or B are displayed. I can create this behaviour, expect for the back button. When it is pressed I'm either getting A/B in landscape or L in portrait, which I want to prevent. What I'm doing (Activities A & B, but L is similar) To trigger the

问题 I have an activity with simple layout file that will hold a fragment created and added to it programmatically. The fragment does not have any layout file since I create layout programmatically as shown below: <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" android:id="@+id/bubble

问题 How can I find out is device's screen orientation locked? I am using OrientationEventListener to trigger some actions inside my app which I would like to disable if user has his screen locked. I know I can usually can orientation like this but how to find out is this locked orientation: int orientation = getResources().getConfiguration().orientation; if (orientation == Configuration.ORIENTATION_PORTRAIT) { // It's portrait } else { // It's landscape } 回答1: Use this: if (android.provider

问题 How do we set Mobile phones to Portrait only and allow tablets to switch between portrait and landscape? I am using Ionic/Cordova. Currently I have configured to set the app to be in portrait mode in config.xml using the following property <preference name="orientation" value="portrait" /> 回答1: You could use isTablet plugin in conjunction with screen orientation plugin, something like: .run(function($ionicPlatform) { $ionicPlatform.ready(function() { if(window.isTablet){ screen

问题 What is so special about Edittext that it can retain the value but not Textview and some other widgets and we have to use onSavedInstance() method for them. What is the magic behind EditText specially that it can retain the values? If someone can tell how it works internally. <----Update----> How it works internally, Please point to that part of the code which explains this scenario. 回答1: What is the magic behind EditText specially that it can retain the values? How it works internally,

问题 I have a fragment with EditText and add it into the layout using transactions. But if I rotate to landscape the soft keyboard disappears. public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); if (getSupportFragmentManager().findFragmentById(R.id.fragmentContainer) == null) { getSupportFragmentManager().beginTransaction() .add(R.id.fragmentContainer, new

问题 I am trying to get the phone angles by using TYPE_ACCELEROMETER sensor. My goal is to get the angle values only after the phone is tilted. It works, but the problem is when I put my phone facing up on the table, it still says isLandscape = true; private boolean isLandscape; mSensorManager = (SensorManager)getSystemService(SENSOR_SERVICE); mSensorManager.registerListener(mSensorListener, mSensorManager.getDefaultSensor( Sensor.TYPE_ACCELEROMETER),1000000); private final SensorEventListener