如何将自定义视图添加到布局?

问题描述

我有一个从 View 类扩展而来的 GraphicsView 类，我想将此 GraphicsView 类添加到我项目的主布局中.我该怎么做?

I have a GraphicsView class that extends from the View class and I want to add this GraphicsView class to the main layout in my project. How can I do that?

static public class GraphicsView extends View {
        public GraphicsView(Context context) {
        super(context);
        }
        @Override
        protected void onDraw(Canvas canvas) {
        // Drawing commands go here
            Path rect = new  Path();
            rect.addRect(100, 100, 250, 50, Direction.CW);
            Paint cPaint = new Paint();
            cPaint.setColor(Color.LTGRAY);
            canvas.drawPath(rect, cPaint);
        }
    }

和我的main.xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/linnnnlayout"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <TextView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="@string/hello" />

    <TextView
        android:id="@+id/Customfont"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="@string/hello" />

     <View
         android:id="@+id/view"
          android:layout_width="fill_parent"
        android:layout_height="wrap_content"/>

</LinearLayout>

推荐答案

你需要给出扩展 View 的类的完整路径，

You need to give complete path of your class that extends View,

<com.blah.blah.GraphicsView
         android:id="@+id/view"
          android:layout_width="fill_parent"
        android:layout_height="wrap_content"/>

这篇关于如何将自定义视图添加到布局?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！