Application of Android Development--linearlayout

Last Update:2016-02-06 Source: Internet

Author: User

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1. IntroductionLinearLayout is the linear layout in the three most common layouts for ANDROID. Among them, linear layout is divided into horizontal line layout and vertical linear Layout. The views are as Follows:Horizontal layoutVertical layout2. BuildIn the Android layout, we often need to nest the layout, for exampleThe focus is as Follows:2.1 android:orientation= "horizontal/ertical": This property indicates that the layout is horizontal or vertical. 2.2 android:layout_weight= "A": This property represents the size of the total layout of a child layout, all sub-layout numbers are combined with sum (a), and the number of sub-layouts a/sum (a) is the Percentage.2.3 android:gravity= "start/center/end/bottom": This property indicates where the part in the layout starts horizontally , centered, ends in horizontal orientation, or at the Bottom. <linearlayout xmlns:android= "http://schemas.android.com/apk/res/android" xmlns:tools= "http://schemas.android.com/tools" android:id= "@+id/linearlayout1" android:layout_width= "match_parent" android:layout_height= "match_parent" android:orientation= "vertical" android:paddingbottom= "@dimen/activity_vertical_margin" android:paddingleft= "@dimen/activity_horizontal_margin" android:paddingright= "@dimen/activity_horizontal_margin" android:paddingtop= "@dimen/activity_vertical_margin" tools:context= "example.linearlayout.Activity1" > <linearlayout android:layout_width= "fill_parent" android:layout_height= "wrap_content" android:orientation= "horizontal" android:layout_weight= "1" > <button android:id= "@+id/button1" android:layout_width= "wrap_content" android:layout_height= "wrap_content" android:text= "@string/bu1"/> <linearlayout android:layout_width= "fill_parent" android:layout_height= "wrap_content" android:orientation= "vertical" android:gravity= "end" > <button android:id= "@+id/button2" android:layout_width= "wrap_content" android:layout_height= "wrap_content" android:text= "@string/bu2"/> </LinearLayout> </LinearLayout> <linearlayout android:layout_width= "match_parent" android:layout_height= "wrap_content" android:orientation= "vertical" android:gravity= "center" android:layout_weight= "1" > <button android:id= "@+id/button3" android:layout_width= "wrap_content" android:layout_height= "wrap_content" android:text= "@string/bu3"/> </LinearLayout> <linearlayout android:layout_width= "match_parent" android:layout_height= "wrap_content" android:orientation= "horizontal" android:layout_weight= "1" android:gravity= "bottom" > //it puts its parts at the bottom, so its sub-layout will also be the bottom, as shown in the last picture <button android:id= "@+id/button5" android:layout_width= "wrap_content" android:layout_height= "wrap_content" android:text= "@string/bu5"/> <linearlayout android:layout_width= "fill_parent" android:layout_height= "wrap_content" //here height adjusts to adaptive, so that its height is consistent with the button height android:orientation= "vertical" android:gravity= "end"> <button android:id= "@+id/button4" android:layout_width= "wrap_content" android:layout_height= "wrap_content" android:text= "@string/bu4"/> </LinearLayout> </LinearLayout> </LinearLayout> Application of Android Development--linearlayout

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Application of Android Development--linearlayout

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