Common XML layout attributes of Android relativelayout

Android relativelayout commonly uses XML layout attributes. relativelayout can be used to deploy almost all types of interfaces. However, it is not easy to master relativelayout because of its rich content, the following describes some common XML attributes of relativelayout:

Android: layout_above: Move the control's bottom to the control with the given ID

Android: layout_below: place the bottom of the control under the control with the given ID

Android: layout_toleftof align the right edge of the control with the left edge of the control with the given ID

Android: layout_torightof align the left edge of the control with the right edge of the control with the given ID

 

Android: layout_alignbaseline the baseline of the control is aligned with the baseline of the control with the given ID

Android: layout_alignbottom: Align the bottom edge of the control with the bottom edge of the given ID

Android: layout_alignleft: Align the left edge of the control with the given ID

Android: layout_alignright: Align the right edge of the control with the given ID

Android: layout_aligntop: Align the top edge of the control with the given ID

 

Android: alignparentbottom if the value is true, the bottom of the control is aligned with the bottom of the parent control.

Android: alignparentleft if the value is true, the left edge of the control is aligned with the left edge of the parent control.

Android: alignparentright: If the value is true, the right edge of the control is aligned with the right edge of the parent control.

Android: alignparenttop if the value is true, the top of the control is aligned with the top of the parent control.

Android: layout_centerhorizontal if the value is true, the control will be placed in the center of the horizontal direction

Android: layout_centerinparent if the value is true, the control is placed in the center of the parent control in the horizontal and vertical directions.

Android: layout_centervertical if the value is true, the control is placed in the center of the vertical direction

It can be roughly divided into four groups for memory. The first group is the relative location between two level components, and the second group is the location where another control is taken as the reference space; the third group is the positional relationship between the control and the parent control. The last group is to change whether the control needs to be centered.

The attribute of the first two groups is the ID value of a component, and the value of the last two groups is a Boolean value.

Android relativelayout commonly uses XML layout attributes. relativelayout can be used to deploy almost all types of interfaces. However, it is not easy to master relativelayout because of its rich content, the following describes some common XML attributes of relativelayout:

Android: layout_above: Move the control's bottom to the control with the given ID

Android: layout_below: place the bottom of the control under the control with the given ID

Android: layout_toleftof align the right edge of the control with the left edge of the control with the given ID

Android: layout_torightof align the left edge of the control with the right edge of the control with the given ID

 

Android: layout_alignbaseline the baseline of the control is aligned with the baseline of the control with the given ID

Android: layout_alignbottom: Align the bottom edge of the control with the bottom edge of the given ID

Android: layout_alignleft: Align the left edge of the control with the given ID

Android: layout_alignright: Align the right edge of the control with the given ID

Android: layout_aligntop: Align the top edge of the control with the given ID

 

Android: alignparentbottom if the value is true, the bottom of the control is aligned with the bottom of the parent control.

Android: alignparentleft if the value is true, the left edge of the control is aligned with the left edge of the parent control.

Android: alignparentright: If the value is true, the right edge of the control is aligned with the right edge of the parent control.

Android: alignparenttop if the value is true, the top of the control is aligned with the top of the parent control.

Android: layout_centerhorizontal if the value is true, the control will be placed in the center of the horizontal direction

Android: layout_centerinparent if the value is true, the control is placed in the center of the parent control in the horizontal and vertical directions.

Android: layout_centervertical if the value is true, the control is placed in the center of the vertical direction

It can be roughly divided into four groups for memory. The first group is the relative location between two level components, and the second group is the location where another control is taken as the reference space; the third group is the positional relationship between the control and the parent control. The last group is to change whether the control needs to be centered.

The attribute of the first two groups is the ID value of a component, and the value of the last two groups is a Boolean value.