android-orientation

I am using Intents to switch between activities in my Android app. I am putting data in the Intent for use in the next activity. When I switch the phone between landscape and portrait modes, the values passed from the intent are lost and I get a NullPointerException. Can someone please tell me what could be wrong. There's a lot of code to post it entirely. But if someone needs to look at specific parts of code, I can post it here. Edit I solved the issue of state not being saved. But another problem I faced is that none of the buttons on the screen work after the orientation has been changed.

I have a simple project that just show the camera with org.opencv.android.JavaCameraView. my problem is that in default the camera is on landscape mode and I can't change this cause I need to define CameraBridgeViewBase instead of a regular camera intent. this is a part of my code: XML code: <LinearLayout android:layout_width="match_parent" android:layout_height="match_parent" > <org.opencv.android.JavaCameraView android:layout_width="fill_parent" android:layout_height="300dp" android:visibility="gone" android:id="@+id/HelloOpenCvView" opencv:show_fps="true" opencv:camera_id="1" /> <

I am new to android development .I have separate screens for portrait and landscape mode.When i change my orientation corresponding screen gets loaded and activity restarts . Now i do not want my activity to restart when i change the orientation but should load its corresponding screen(axml). I have tried [Activity (Label = "MyActivity",ConfigurationChanges=Android.Content.PM.ConfigChanges.Orientation)] the above line stops activity getting restarted but it loads the same screen(axml). Please suggest . thanks Write this code in your activity @Override public void onConfigurationChanged

I've made a search screen that has one tab for keywords, filters, and a search button, and three optional tabs for the different types of results (each containing a ListView with an ArrayAdapter ). When starting the activity, the developer can optionally pass in the results as an extra Parcelable[] if the search has already been performed. In the onCreate() method I'm creating each of the three tabs for the Parcelable[] passed through. When I call a search from the button on the filter tab, I clear the tabs and recreate them with the new results, which works perfectly. The problem is that when

When i try to switch the orientation of my emulator, the emulator window rotates and the orientation of the emulator screen stays as it were. Can anyone tell me what is the reason for this ?I have tried all the answers from StackOverflow and nothing seem to help Amritha Some of the emulator targets like 4.4 (API level 19) and 2.3 have a bug. Change your emulator to target version 4.2 or 4.3 and try to change the orientation. See the history of this bug: https://code.google.com/p/android/issues/detail?id=13189 Related question: Impossible to rotate the emulator with android 4.4 trakos If