Two examples of the greater the android:layout_weight and the smaller the proportion of the larger

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about what the meaning of the android:layout_weight, "the larger the proportion of the Internet" and "the larger the proportion of the smaller" two claims. In fact both of these situations are also available.

Example 1:0DP

<LinearLayoutandroid:orientation= "vertical"Android:layout_width= "Match_parent"Android:layout_height= "Match_parent">    <TextViewAndroid:layout_width= "Fill_parent"Android:layout_height= "0DP"Android:background= "#ff0000"Android:layout_weight= "1"Android:text= "1"/>    <TextViewAndroid:layout_width= "Fill_parent"Android:layout_height= "0DP"Android:background= "#00ff00"Android:layout_weight= "2"Android:text= "2"/></LinearLayout>

Example 2:

<LinearLayoutandroid:orientation= "vertical"Android:layout_width= "Match_parent"Android:layout_height= "Match_parent">    <TextViewAndroid:layout_width= "Fill_parent"Android:layout_height= "Match_parent"Android:background= "#ff0000"Android:layout_weight= "1"Android:text= "1"/>    <TextViewAndroid:layout_width= "Fill_parent"Android:layout_height= "Match_parent"Android:background= "#00ff00"Android:layout_weight= "2"Android:text= "2"/></LinearLayout>

Explanation of the two situations:

The layout first assigns a width to each element, and the remaining space is allocated to each element.

In the allocation width phase, the proportions are based on the reciprocal of Layout_weight, that is, the smaller the more Oita.

In allocating the remaining space phase, the proportions are in accordance with layout_weight, that is, the greater the larger the Oita.

In case one, the fixed width is 0, only the second stage; In case two, the allocation width can fill all the space, only the first stage.

So if you want to strictly let it in a certain proportion, you can try to set it to 0DP. At this point the proportions of each element are weight.