What is exact difference between gravity and layout_gravity
android, gravity, layout-gravity, xml
Solution
- Yes, your understanding is correct. Any `layout_` attribute gives instructions to the parent view.
- Generally, if a view is taking up the full width/height of its' parent, then you won't need to specify `layout_gravity`, you'll probably find `gravity` more useful. If your view does not take up an entire dimension of its' parent, you might want to align it depending on your desired look.
Problem
Possible Duplicate: Android - gravity and layout_gravity I have been working on android xml's. I have used `android:layout_gravity="center"` to align components in specific position. Now a days, when I was working on a Dialog like Activity, I came across `android:gravity="center"`. What I found there was, `gravity` was used to align its `child` to a specific position. I would share an example of what it is, android:gravity="center" ``` <LinearLayout android:layout_width="match_parent" android:layout_height="match_parent" android:gravity="center_vertical" android:orientation="vertical" > <EditText android:id="@+id/enterNumberEdit" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_margin="10dp" android:hint="Enter No." > <requestFocus /> </EditText> </LinearLayout> ``` It aligns the child of `LinearLayout` in center. android:layout_gravity="center" ``` <LinearLayout android:layout_width="match_parent" android:layout_height="match_parent" android:layout_gravity="center" android:orientation="vertical" android:background="@drawable/dialog_background" > </LinearLayout> ``` It aligns the `LinearLayout` itself in center. Now my questions are: - If I am right in these assumptions, that whether `gravity` is for child components and `layout_gravity` is for parent component. - When to choose `gravity` over `layout_gravity`. I have found this much explanation working on xml's so far. I would like to hear much better explanation of it. Let me know, if I am wrong somewhere