If I understand correctly you mean : Is there any reason NOT to indiscriminately do this without re-evaluating each individual case where I use a fragment? The answer is Yes – you should not do this without carefully re-evaluating each individual case where you use a fragment. Of course, by preventing restarts due to config … Read more
After waiting a long time for this answer, I have sorted things out, and I think that many other people will need a simple solution for this question. Warning: This solution is for the eclipse user who uses Indigo or lower version. Still looking for solutions users who use other IDE’s for android. When extending … Read more
Have you added ACTION_MAIN intent filter to your main activity? If you don’t add this, then android won’t know which activity to launch as the main activity. ex: <intent-filter> <action android:name=”android.intent.action.MAIN”/> <action android:name=”com.package.name.MyActivity”/> <category android:name=”android.intent.category.LAUNCHER” /> </intent-filter>
First of all, you should read my blog post for more information (it talks about why this exception happens and what you can do to prevent it). Calling commitAllowingStateLoss() is more of a hack than a fix. State loss is bad and should be avoided at all costs. At the time that onActivityResult() is called, … Read more
A Fragment is a section of an Activity, which has: its own lifecycle receives its own input events can be added or removed while the Activity is running. A Fragment must always be embedded in an Activity. Fragments are not part of the API prior to HoneyComb (3.0). If you want to use Fragments in … Read more
ianhanniballake is right. You can get all the functionality of Activity from FragmentActivity. In fact, FragmentActivity has more functionality. Using FragmentActivity you can easily build tab and swap format. For each tab you can use different Fragment (Fragments are reusable). So for any FragmentActivity you can reuse the same Fragment. Still you can use Activity … Read more
You must write onActivityResult() in your FirstActivity.Java as follows @Override public void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); } So this will call your fragment’s onActivityResult() Edit: the solution is to replace getActivity().startActivityForResult(i, 1); with startActivityForResult(i, 1);
A FragmentActivity is a subclass of Activity that was built for the Android Support Package. The FragmentActivity class adds a couple new methods to ensure compatibility with older versions of Android, but other than that, there really isn’t much of a difference between the two. Just make sure you change all calls to getLoaderManager() and … Read more
No need for that much code. You can do all this stuff without coding so much by using only viewpager with tablayout. Your main Layout: <RelativeLayout xmlns:android=”http://schemas.android.com/apk/res/android” xmlns:app=”http://schemas.android.com/apk/res-auto” android:layout_width=”match_parent” android:layout_height=”wrap_content”> <android.support.v4.view.ViewPager android:id=”@+id/pager” android:layout_width=”match_parent” android:layout_height=”match_parent”> </android.support.v4.view.ViewPager> <android.support.design.widget.TabLayout android:id=”@+id/tabDots” android:layout_alignParentBottom=”true” android:layout_width=”match_parent” android:layout_height=”wrap_content” app:tabBackground=”@drawable/tab_selector” app:tabGravity=”center” app:tabIndicatorHeight=”0dp”/> </RelativeLayout> Hook up your UI elements inactivity or fragment as follows: Java … Read more
I would suggest creating a separate fragment file for each tab. I recently did this as well, so I have outlined my code below: Layout Files activity_main.xml <android.support.v4.app.FragmentTabHost xmlns:android=”http://schemas.android.com/apk/res/android” android:id=”@android:id/tabhost” android:layout_width=”match_parent” android:layout_height=”match_parent”> <LinearLayout android:orientation=”vertical” android:layout_width=”match_parent” android:layout_height=”match_parent”> <TabWidget android:id=”@android:id/tabs” android:orientation=”horizontal” android:layout_width=”match_parent” android:layout_height=”wrap_content” android:layout_weight=”0″/> <FrameLayout android:id=”@android:id/tabcontent” android:layout_width=”0dp” android:layout_height=”0dp” android:layout_weight=”0″/> <FrameLayout android:id=”@+id/realtabcontent” android:layout_width=”match_parent” android:layout_height=”0dp” android:layout_weight=”1″/> </LinearLayout> </android.support.v4.app.FragmentTabHost> tab1_view.xml … Read more