"Learning Notes" Android common layout

First, LinearLayout linear layout

(1) Linear layout is divided into vertical and horizontal two directions

android:orientation= "vertical" android:orientation= "horizontal"

(2) Definition width and height

Full parent container: match_parent based on content adaptive: wrap_content

Android:layout_width= "" Android:layout_height= ""

(3) Set weights

android:layout_weight= "1" all

Ii. Relative layout of relativitylayout

//New and set up a relativitylayout layout

Relativitylayout root=new Relativitylayout (this);

Setcontentview (root);

//Add a TextView control

TextView tv=new TextView (this);

tv.settext ("Hello");

//define the Relativitylayout parameter, with two parameters of high and wide

relativitylayout.layoutparams lp=new Relativitylayout.layoutparams (RelativityLayout.LayoutParams.WrapContent , RelativityLayout.LayoutParams.WrapContent);

Root.addview (TV,LP);

Third, Framelayout

With less, the added controls are automatically stacked together. Add later

"Learning Notes" Android common layout