Android Development Engineer Anthology-layout_weight explanation

Objective

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Layout_weight related code Show

<TextView android:layout_width="0dp" android:layout_height="25dp" android:layout_weight="1" android:gravity="center" android:background="#000000"/><TextView android:layout_width="0dp" android:layout_height="25dp" android:layout_weight="2" android:gravity="center" android:background="#f0f0f0"/><TextView android:layout_width="0dp" android:layout_height="25dp" android:layout_weight="3" android:gravity="center" android:background="#a3a3a3"/>

Control occupies a 1:2:3 ratio

android:baselineAligned="false"

This property, which represents not based on the same horizontal plane.

Characteristics

The Layout_weight property in LinearLayout, which assigns the size of the control, and then assigns weight, if the control is set to text information, if the control is the width wrap_content , then the text information is first sorted and then weight assigned.

If the width is the match_parent case, the allocation is similar to the above, except that its proportional algorithm is not the same.

weightSumThis can be set to the scale of the entire parent control, android:weightSum="3" expressed as 3 allocations, then the following layout is divided into 3 points, can be 1:2,2:1 and so on.

Important: The total width minus the width of the setting is allocated.

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Android Development Engineer Anthology-layout_weight explanation