Android How to Customize View Properties _android

The example of this article introduced the Android custom view properties of the method for your reference, the specific contents are as follows

1. Customize one's own view class to inherit from view

public class MyView extends View
{public
  myview (context, AttributeSet attrs)
  {
    Super (context, ATTRS);
    Gets to the custom property
    TypedArray ta=context.obtainstyledattributes (attrs, r.styleable.myview);
    int Color=ta.getcolor (R.styleable.myview_rect_color, 0xffff0000);
    SetBackgroundColor (color);
    You must manually recycle TA
    ta.recycle ();
  }

  Public MyView
  {
    super (context);
  }
}

2. Create a new Attrs.xml file in the Res/values directory

<?xml version= "1.0" encoding= "Utf-8"?>
<resources>
  //define a declare-styleable tag, set attr attribute inside
  <declare-styleable name= "MyView" >
    <attr name= "rect_color" format= "color"/>
  </ Declare-styleable>
</resources>

A attr property that corresponds to a view property

3. Finally look at the layout file how to use the custom view we created and set its properties

<linearlayout xmlns:android= "http://schemas.android.com/apk/res/android"
  /Customize a MyView namespace
  xmlns:gu = "Http://schemas.android.com/apk/res/com.gu.myrect"
  xmlns:tools= "Http://schemas.android.com/tools
  " Android:layout_width= "Match_parent"
  android:layout_height= "match_parent"
  android:orientation= "vertical" ">

  <com.gu.myrect.myview
    android:layout_width=" 100DP "
    android:layout_height=" 100DP "
    // Custom attribute values
    gu:rect_color= "#cc99cc"/> </LinearLayout> based on custom namespaces and the properties we set in Attrs

The above is the entire content of this article, I hope to help you learn, but also hope that we support the cloud habitat community.