Android开发：圆角的Button

在res目录下创建drawable文件夹，在文件夹下新建Android的XML文件，类型选择为shape。

 1 <?xml version="1.0" encoding="UTF-8"?> 
 2 <shape 
 3     xmlns:android="http://schemas.android.com/apk/res/android" 
 4     android:shape="rectangle"> 
 5     <!-- 填充的颜色 --> 
 6     <solid android:color="#FFFFFF" /> 
 7     <!-- 设置按钮的四个角为弧形 --> 
 8     <!-- android:radius 弧形的半径 --> 
 9     <corners android:radius="5dip" /> 
10       
11 <!-- padding：Button里面的文字与Button边界的间隔 --> 
12 <padding 
13    android:left="10dp" 
14    android:top="10dp" 
15    android:right="10dp" 
16    android:bottom="10dp" 
17 /> 
18 </shape>

在main.xml文件中：

android:background="@drawable/shape"就可以使用shape.xml资源

 1 <?xml version="1.0" encoding="utf-8"?> 
 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
 3     android:orientation="vertical" 
 4     android:layout_width="fill_parent" 
 5     android:layout_height="fill_parent" 
 6     > 
 7 <TextView    
 8     android:layout_width="fill_parent"   
 9     android:layout_height="wrap_content"   
10     android:text="@string/hello" 
11     />   
12 <Button   
13     android:id="@+id/roundButton" 
14     android:text=" 圆角按钮 " 
15     android:layout_width="wrap_content"   
16     android:layout_height="wrap_content"   
17     android:background="@drawable/shape" 
18     /> 
19 </LinearLayout>

strings.xml

1 <?xml version="1.0" encoding="utf-8"?> 
2 <resources> 
3     <string name="hello">Hello World, RoundButtonDemoActivity!</string> 
4     <string name="app_name">RoundButtonDemo</string> 
5 </resources>

新建Activity.java

 1 package com.android.RoundButtonDemo.activity;  
 2  
 3 import android.app.Activity;  
 4 import android.os.Bundle;  
 5 import android.view.View;  
 6 import android.view.View.OnClickListener;  
 7 import android.widget.Button;  
 8 import android.widget.Toast;  
 9  
10 public class RoundButtonDemoActivity extends Activity {  
11     Button roundButton;  
12     @Override 
13     public void onCreate(Bundle savedInstanceState) {  
14         super.onCreate(savedInstanceState);  
15         setContentView(R.layout.main);  
16           
17         roundButton=(Button)findViewById(R.id.roundButton);  
18       //使用匿名类注册Button事件  
19         roundButton.setOnClickListener(new OnClickListener()  
20       {       
21             public void onClick(View v)  
22             {  
23                 Toast.makeText(RoundButtonDemoActivity.this, "你点击了圆角按钮",Toast.LENGTH_LONG).show();  
24             }  
25         });  
26     }  
27 }

效果图如下：

posted on 2016-03-02 13:49 程序媛Kasey 阅读(104) 评论(0) 收藏举报