Relativelayout the meanings of individual attributes in Android

Tag:ati   and   div    level    android    pre   layout   span   code   

Android:layout_above= "@id/xxx"-puts the  control on top of the given ID control android:layout_below= "@id/xxx"-puts the  control under the given ID control Android: layout_toleftof= "@id/xxx"  -aligns the right edge of the control with the left edge of the given ID control android:layout_torightof= "@id/xxx"-  - Aligns the left edge of the control with the right edge of the given ID control android:layout_alignleft= "@id/xxx"-aligns the left edge of  the control with the left edge of the given ID control android:layout_aligntop= "@id/ XXX "-Aligns the top edge of  the control with the top edge of the given ID control android:layout_alignright=" @id/xxx "  -aligns the right edge of the control with the right edge of the given ID control android:layout_ alignbottom= "@id/xxx"-  aligns the bottom edge of the control with the bottom edge of the given ID control android:layout_alignparentleft= "true"  -- Aligns the left edge of the control with the left edge of the parent control android:layout_alignparenttop= "true"-aligns the top edge of the control with the  top edge of the parent control android:layout_alignparentright= "True"-aligns the right edge of  the control with the right edge of the parent control android:layout_alignparentbottom= "true"-aligns the bottom edge of the control with the bottom edge of the parent control Android:layout_ Centerinparent= "true"--places the  control in the center of the parent control android:layout_centerhorizontal= "true"  --places the control in the center of the horizontal direction Android: Layout_centervertical= "true"  --places the control in the center of the vertical direction

Relativelayout the meanings of individual attributes in Android