Use attrs. xml to customize attributes

<?xml version="1.0" encoding="utf-8"?><resources>    <declare-styleable name="CustomView">    <attr name="tColor" format="color" />    <attr name="tSize" format="dimension" />    </declare-styleable>    </resources>

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    xmlns:test="http://schemas.android.com/apk/res/com.hzhi.customview"    android:layout_width="match_parent"    android:layout_height="match_parent"    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=".MainActivity" >        <com.hzhi.customview.CustomView        android:id="@+id/cusView"android:layout_width="wrap_content"android:layout_height="wrap_content"test:tColor="#00FFFF"test:tSize="30dp"    >    </com.hzhi.customview.CustomView></RelativeLayout>

// Constructor public CustomView (Context context, AttributeSet attrs) {super (context, attrs); // obtain TypedArrayTypedArray a = context. obtainStyledAttributes (attrs, R. styleable. customView); // obtain attrs. the attribute value in xml. Format: name_attribute name. The default value is int tColor =. getColor (R. styleable. customView_tColor, Color. GREEN); float tSize =. getDimension (R. styleable. customView_tSize, 35); p. setColor (tColor); p. setTextSize (tSize); // returns a signal indicating the end of the bound resource to resource. recycle ();}