Android--android:gravity and Android:layout_gravity

The LinearLayout has two very similar properties:

Android:gravity and Android:layout_gravity.

The difference between them is:

The Android:gravity property is the qualification for the content in the view . For example, a button above the text. You can set the text relative to the view's left, right, and so on.

Android:layout_gravity is used to set the location of the view relative to the parent view . For example, a button in the LinearLayout, you want to put the button in the LinearLayout left, on the right and so on can be set by this property.

That is, android:gravity is used to set the alignment of content in view relative to the view component, while android:layout_gravity is used to set the alignment of the view component with respect to the container.

The principle is a bit similar to Android:paddingleft and Android:layout_marginleft. If both properties are set at the same time on the button.

Android:paddingleft= Content set on the "30px" button is 30 pixels from the left edge of the button
Android:layout_marginleft= "30px" The entire button is set from the left side of the content 30 pixels

To get back to the point below, we can set the android:gravity= "center" to let the text in the EditText be centered in the EditText component , while we set the android:layout_ of EditText Gravity= " right " to make the EditText component appear in LinearLayout

Source to: http://blog.csdn.net/feng88724/article/details/6333809

Android--android:gravity and Android:layout_gravity