Android開發學習筆記：圓角的Button

標籤：android   開發   

在res目錄下的drawable-mdpi建立xml檔案shape.xml,如所示：

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shape.xml

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<?xml version="1.0" encoding="UTF-8"?> <shape     xmlns:android="http://schemas.android.com/apk/res/android"     android:shape="rectangle">     <!-- 填充的顏色 -->     <solid android:color="#FFFFFF" />     <!-- 設定按鈕的四個角為弧形 -->     <!-- android:radius 弧形的半徑 -->     <corners android:radius="5dip" />       <!-- padding：Button裡面的文字與Button邊界的間隔 --> <padding    android:left="10dp"    android:top="10dp"    android:right="10dp"    android:bottom="10dp" /> </shape>

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main.xml

在android:background="@drawable/shape"就使用了shape.xml資源

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<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"     android:orientation="vertical"     android:layout_width="fill_parent"     android:layout_height="fill_parent"     > <TextView        android:layout_width="fill_parent"       android:layout_height="wrap_content"       android:text="@string/hello"     />   <Button       android:id="@+id/roundButton"     android:text=" 圓角按鈕 "     android:layout_width="wrap_content"       android:layout_height="wrap_content"       android:background="@drawable/shape"     /> </LinearLayout>

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strings.xml

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

RoundButtonDemoActivity.java

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package com.android.RoundButtonDemo.activity;   import android.app.Activity;  import android.os.Bundle;  import android.view.View;  import android.view.View.OnClickListener;  import android.widget.Button;  import android.widget.Toast;   public class RoundButtonDemoActivity extends Activity {      Button roundButton;      @Override     public void onCreate(Bundle savedInstanceState) {          super.onCreate(savedInstanceState);          setContentView(R.layout.main);                    roundButton=(Button)findViewById(R.id.roundButton);        //使用匿名類註冊Button事件          roundButton.setOnClickListener(new OnClickListener()        {                   public void onClick(View v)              {                  Toast.makeText(RoundButtonDemoActivity.this, "你點擊了圓角按鈕",Toast.LENGTH_LONG).show();              }          });      }  }

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：

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Android開發學習筆記：圓角的Button