"Android" top five layout Common properties

linear Layout (linearlayout)
Common Properties:
android:orientation= "Vertical"-determines how the sub-class controls are arranged (vertical vertical; horizontal level)
android:garavity= "Center"--determines the position of the child control's XY
common property values:
1>center_vertical: Vertical (Y axis) centered
2>center_horizongtal: Horizontal Center
3>center Center
4>right on the right side of the current layout
5>left left
6>bottom The bottom of the current layout
Note : Android:gravity supports a variety of properties, but multiple attribute values are separated by a vertical bar, but no spaces can appear before or after the vertical bar! 　　
sub-class properties:
android:layout_gravity= "Bottom"-the position of the control in the parent container
android:layout_weight = "1"--the ratio of the control to the parent container
relative layout (relativelayout) relative to other sibling controls or parent class containers
Common Properties:
android:gravity= ""--sets the alignment of the sub-components within the layout container
android:ignoregravity= "" set that component to be unaffected by gravity
sub-class properties:
First Class: property value is True or false
Android:layout_centerhorizontal Horizontal Center
android:layout_centervertical Vertical Center
Android:layout_centerinparent is completely centered relative to the parent element
Android:layout_alignparentbottom snaps to the bottom edge of the parent element
Android:layout_alignparentleft snaps to the left edge of the parent element
Android:layout_alignparentright snaps to the right edge of the parent element
Android:layout_alignparenttop snaps to the top edge of the parent element
android:layout_alignwithparentifmissing if the corresponding sibling element cannot be found, then the parent element is the reference.
Second class: The attribute value must be the reference name of the ID
Android:layout_below at the bottom of an element
Android:layout_above at the top of an element
Android:layout_toleftof on the left side of an element
Android:layout_torightof on the right side of an element
Android:layout_aligntop aligns the top edge of this element with the top edge of an element
Android:layout_alignleft aligns the left edge of this element with the left edge of an element
Android:layout_alignbottom aligns the bottom edge of this element with the bottom edge of an element
Android:layout_alignright aligns the right edge of this element with the right edge of an element
Class III: Attribute values are specific pixel values, such as 30dip,40px
Android:layout_marginbottom distance from the bottom edge of an element
Android:layout_marginleft distance from the left edge of an element
android:layout_marginright distance from the right edge of an element
android:layout_margintop distance from the top edge of an element
EditText The Android:hint setting EditText is empty when the message is in the input box.
The android:gravity property is the qualification for the view content. For example, a button above the text. You can set the text to be left on the view, right, and so on.

Properties that are not commonly used by subclasses:

Android:scaletype is to control how the picture resized/moved to match the imageviewsize.
The meaning difference of Imageview.scaletype/android:scaletype value:
Center/center is centered on the original size of the image, and when the picture is longer/wider than the length/width of the view, the center portion of the image is displayed
Center_crop/centercrop proportionally enlarges the size of the image so that the image is long (wide) equal to or greater than the length (width) of the view
Center_inside/centerinside Displays the contents of the picture in full, by scaling it down or the original size to make the picture long/wide equal to or less than the length/width of the view
Fit_center/fitcenter enlarge/Shrink the picture to the width of the view, centered on the display
Fit_end/fitend Zoom in/out to the width of the view, displayed in the lower part of the view
Fit_start/fitstart enlarge/Shrink the image to the width of the view, displayed in the upper part of the view
Fit_xy/fitxy The picture is not scaled up/down to the view size display
The Matrix/matrix is drawn with a matrix and is displayed by zooming in and out of the image.
　　 Note: The name of the image in the Drawable folder cannot be capitalized.
table Layout (tablelayout)
Common Properties:
Android:stretchcolumns= ""--sets the columns that can be stretched. The column can stretch to the row direction, up to a full row.
Android:shrinkcolumns= ""--sets the columns that can be shrunk. When the column control has too much content and is already packed with rows, the content is displayed in the row direction.
Android:collapsecolumns= ""--sets the column to hide.
sub-class properties:
Android:layout_column= ""--Specifies that the cell is displayed in the first column
Android:layout_span= ""--Specifies the number of columns that the cell occupies (1 if unspecified)
frame Layout (framelayout)
Common Properties:
Android:foreground= ""--sets the foreground image of the layout container
Android:foregroundgravity= "" Sets the gravity property of the drawing foreground graph
Absolute Layout (absolutelayout) can also be called coordinate layout

Common Properties:
Android:layout_x= ""--Specifies the X-coordinate of the sub-space
Android:layout_y= ""--Specifies the Y-coordinate of the child control

"Android" top five layout Common properties