Android之拨号器

下面是用Android模拟拨号的小例子
首先是布局文件main.xml

<?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"
    />
    
<EditText
	android:layout_width="fill_parent" 
    android:layout_height="wrap_content"
    android:id="@+id/mobileCode" 
/>

<Button
	android:layout_width="wrap_content" 
    android:layout_height="wrap_content"
    android:text="@string/button"
    android:id="@+id/dialButton"
/>
    
</LinearLayout>

接着是资源文件strings.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <string name="hello">请输入电话号码</string>
    <string name="app_name">电话拨号</string>
    <string name="button">拨号</string>
</resources>

最后是处理响应的Activity

package com.lamp.activity;

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 PhoneActivity extends Activity {
	public EditText mobileText = null;
	
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
        mobileText = (EditText)this.findViewById(R.id.mobileCode);
        Button button = (Button)this.findViewById(R.id.dialButton);
        
        button.setOnClickListener(new View.OnClickListener() {
			
			public void onClick(View view) {
				String mobile = mobileText.getText().toString();
				//设置意图
				Intent intent = new Intent(Intent.ACTION_CALL,Uri.parse("tel:" + mobile));
				PhoneActivity.this.startActivity(intent);
			}
		});
    }
}

还有要在清单文件AndroidManifest.xml中注册拨号权限

<uses-permission android:name="android.permission.CALL_PHONE" />