一、android的电话拨号器

旧城等待， 2022-10-23 00:49 170阅读 0赞

1、项目结构：![SouthEast][]

效果图如下：![SouthEast 1][]

2、AndroidManifest.xml的配置文件

<?xml version="1.0" encoding="utf-8"?>
    <manifest xmlns:android="http://schemas.android.com/apk/res/android"
        package="cn.huangjie.phone"
        android:versionCode="1"
        android:versionName="1.0" >
    
        <uses-sdk android:minSdkVersion="8" />
    
        <application
            android:icon="@drawable/ic_launcher"
            android:label="@string/app_name" >
            <activity
                android:label="@string/app_name"
                android:name=".MainActivity" >
                <intent-filter >
                    <action android:name="android.intent.action.MAIN" />
    
                    <category android:name="android.intent.category.LAUNCHER" />
                </intent-filter>
            </activity>
        </application>
    	
        <uses-permission android:name="android.permission.CALL_PHONE"/>
    </manifest>

3、main.xml布局管理文件

<?xml version="1.0" encoding="utf-8"?>
    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        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/phone" />
        <EditText
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:id="@+id/mobile" />
        <Button
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/button" 
            android:id="@+id/button"/>
    </LinearLayout>

4、strings.xml数值管理文件

<?xml version="1.0" encoding="utf-8"?>
    <resources>
    
        <string name="hello">Hello World, MainActivity!</string>
        <string name="app_name">电话拨号器</string>
        <string name="phone">请输入手机号码</string>
        <string name="button">拨号</string>
    
    </resources>

5、R.java资源类文件

/* AUTO-GENERATED FILE.  DO NOT MODIFY.
     *
     * This class was automatically generated by the
     * aapt tool from the resource data it found.  It
     * should not be modified by hand.
     */
    
    package cn.huangjie.phone;
    
    public final class R {
        public static final class attr {
        }
        public static final class drawable {
            public static final int ic_launcher=0x7f020000;
        }
        public static final class id {
            public static final int button=0x7f050001;
            public static final int mobile=0x7f050000;
        }
        public static final class layout {
            public static final int main=0x7f030000;
        }
        public static final class string {
            public static final int app_name=0x7f040001;
            public static final int button=0x7f040003;
            public static final int hello=0x7f040000;
            public static final int phone=0x7f040002;
        }
    }

6、窗口和响应事件

package cn.huangjie.phone;
    
    import android.app.Activity;
    import android.content.Intent;
    import android.net.Uri;
    import android.os.Bundle;
    import android.view.View;
    import android.widget.Button;
    import android.widget.EditText;
    
    public class MainActivity extends Activity {
    	private EditText mobileText;
    	
        /** Called when the activity is first created. 
         *  onCreate方法在整个Active的声明周期内只会执行一次
         * */
        @Override
        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.main);
            mobileText = (EditText) findViewById(R.id.mobile);
            Button button = (Button) findViewById(R.id.button);
            button.setOnClickListener(new PhoneOnClickListener());
        }
        
        /**
         * 定义成内部类的话，在软件加载进虚拟机的话会比把该类定义在外部要快点，
         * 定义成内部类的话只要加载一个class文件即可，放在外部需要加载两个class文件
         */
        private final class PhoneOnClickListener implements View.OnClickListener{
    
    		public void onClick(View v) {
    			String phone = mobileText.getText().toString();
    			Intent intent = new Intent();//意图
    			intent.setAction("android.intent.action.CALL");
    			intent.setData(Uri.parse("tel:" + phone));
    //			intent.addCategory("android.intent.category.DEFAULT");
    			startActivity(intent);//该方法内部会自动为intent添加类别意图,android.intent.category.DEFAULT
    			
    		}
        	
        }
        
    }

示例资源下载路径： [http://download.csdn.net/detail/wxwzy738/6240019][http_download.csdn.net_detail_wxwzy738_6240019]

[SouthEast]: /images/20221022/9c8894d6f3294134b12f012eb1a2081d.png
[SouthEast 1]: /images/20221022/8af5f80c2519460e924809088a89cde5.png
[http_download.csdn.net_detail_wxwzy738_6240019]: http://download.csdn.net/detail/wxwzy738/6240019