在使用到自定義View的xml布局文件中需要加入xmlns:前綴=http://schemas.android.com/apk/res/你的自定義View所在的包路徑.
下面是一個簡單的例子:
結構圖:
MyView.java
package kexc.myView;
import android.content.Context;
import android.content.res.TypedArray;
import android.util.AttributeSet;
import android.widget.TextView;
public class MyView extends TextView {
private String mString = "Welcome to Kesion's blog";
public MyView(Context context, AttributeSet attrs) {
super(context, attrs);
TypedArray a = context.obtainStyledAttributes(attrs,
R.styleable.MyView);
int textColor = a.getColor(R.styleable.MyView_textColor,
0XFFFFFFFF);
float textSize = a.getDimension(R.styleable.MyView_textSize, 36);
mString = a.getString(R.styleable.MyView_title);
setText(mString);
setTextSize(textSize);
setTextColor(textColor);
}
}