Layout management in Android

Source: Internet
Author: User


Fill_parent: Full Screen


Wrap_content: The size is enough to show the content in the current control.


Android: gravity = "right": alignment of its child controls (gravity tendency)


Table layout <tablelayout>:


Android: collapsecolumns = "1": indicates to hide column 1 of tablerow in tablelayout, that is, the second column (number starts from 0). If multiple columns need to be hidden, separated by commas (,). Android: collapsecolumns = "0, 1"


Android: stretchcolumns = "1": sets column 1 to be stretched.


Android: shrinkcolumns = "0": sets column 0 to a column that can be shrunk.


Relative layout <relativelayout>:


Child widgets are relatively laid out based on the reference controls and parameters they have set.


Android: layout_centerinparent = "true": place the current widget in the center of its parent widget, either horizontally or vertically.


Android: layout_centerhorizontal: placed in the center of the parent Control


Android: layout_centervertical: placed in the center of the portrait of the parent Control


Android: layout_alignparentbottom: Align the bottom of the current control with the bottom of the parent Control


Android: layout_alignparentleft: Align the left end of the current control with the left end of the parent Control


Android: layout_alignparentright: Align the right end of the current control with the right end of the parent Control


Android: layout_alignparenttop: Align the top of the current control with the top of the parent Control


Android: layout_alignwithparentifmissing: when the reference control does not exist or is invisible, refer to the parent control.


The value of the preceding attribute is true or false.


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Android: layout_below = "@ ID/idname": place the current control under the control whose ID is idname.


Android: layout_above = "@ ID/idname": place the current control above the control whose ID is idname.


Android: layout_below = "@ ID/idname": place the current control under the control whose ID is idname.


Android: layout_toleftof = "@ ID/idname": place the current control on the left side of the control whose ID is idname.


Android: layout_torightof = "@ ID/idname": place the current control on the right side of the control whose ID is idname.

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