对android:textAlignmentStyle 属性参数的理解

Constant	Value	Description
inherit	0	Default
gravity	1	Default for the root view. The gravity determines the alignment, ALIGN_NORMAL, ALIGN_CENTER, or ALIGN_OPPOSITE, which are relative to each paragraph’s text direction
textStart	2	Align to the start of the paragraph, e.g. ALIGN_NORMAL.
textEnd	3	Align to the end of the paragraph, e.g. ALIGN_OPPOSITE.
center	4	Center the paragraph, e.g. ALIGN_CENTER.
viewStart	5	Align to the start of the view, which is ALIGN_LEFT if the view’s resolved layoutDirection is LTR, and ALIGN_RIGHT otherwise.
viewEnd	6	Align to the end of the view, which is ALIGN_RIGHT if the view’s resolved layoutDirection is LTR, and ALIGN_LEFT otherwise

1. TextView  的代码

效果：

center

textEnd、viewEnd、

inherit、gravity、textStart、viewStart