Common attributes of Android Development

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Android: id -- specify the corresponding ID for the control
Android: text -- specify the text displayed in the control. Note that strings in the strings. xml file should be used as much as possible here.
Android: grimace -- specifies the basic position of the control, such as center and right.
Android: textSize -- specifies the font size in the control.
Android: background -- specifies the background color used by the control. The RGB naming method is used.
Android: width -- specify the width of the control
Android: height -- specify the height of the control
Android: padding * -- specifies the padding of the control, that is, the content in the control.
Android: sigleLine -- if set to true, the control content is displayed in the same row.
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<! --
Android: layout_above: Move the control's bottom to the control with the given ID
Android: layout_below: place the top 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: Compares the bottom edge of the control with the bottom edge of the given ID control.
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 right edge of the given ID Control
Android: layout_alignTop: aligntop
Android: alignParentBottom if the value is true, the bottom of the control is aligned with the bottom of the parent control.
Android: layout_alignParentLeft if the value is true, the left side of the control is aligned with the left side of the parent control.
Android: layout_alignParentRight if the value is true, the right side of the control is aligned with the right side of the parent control.
Android: layout_alignParentTop if the value is true, the top of the space is aligned with the top of the parent control.

Android: layout_centerHorizontal
Android: layout_centerInParent if the value is true, the control is centered in the horizontal and vertical directions of the parent control.
Android: layout_centerVertical if the value is true, the control will be centered in the vertical direction
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