Android编程简单实现拨号器功能的方法

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  输入号码
  拨打

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/* 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 org.lxh.phone;
public final class R {
  public static final class attr {
  }
  public static final class drawable {
    public static final int icon=0x7f020000;
  }
  public static final class id {
    public static final int botton=0x7f050001;
    public static final int phonenumber=0x7f050000;
  }
  public static final class layout {
    public static final int main=0x7f030000;
  }
  public static final class string {
    public static final int app_name=0x7f040003;
    public static final int bottonname=0x7f040001;
    public static final int hello=0x7f040002;
    public static final int tip=0x7f040000;
  }
}

package org.lxh.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 PhoneActivity extends Activity {
   private EditText edit;
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    edit=(EditText)this.findViewById(R.id.phonenumber);  //通过id取得文本输入框
    Button but=(Button)this.findViewById(R.id.botton);  //通过id取得按钮
    but.setOnClickListener(new MyListener()); //给按钮添加监听器
  }
  public final class MyListener implements View.OnClickListener{  //自定义的监听器
    public void onClick(View v) {
      //实例化一个意图（动作），用来拨打电话
      Intent intent=new Intent("android.intent.action.CALL",Uri.parse("tel:"+edit.getText().toString()));
      startActivity(intent); //封装一个意图
    }
  }
}

package org.lxh.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 CallPhoneActivity extends Activity {
  private EditText edittext;
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    //取得输入框和按钮
    edittext=(EditText)this.findViewById(R.id.phonenum);
    Button but=(Button)this.findViewById(R.id.button);
    but.setOnClickListener(new View.OnClickListener() {
      public void onClick(View v) {
        String number=edittext.getText().toString();
        //封装一个意图，用来拨打电话
        Intent intent=new Intent(Intent.ACTION_CALL,Uri.parse("tel:"+number));
        startActivity(intent);
      }
    });
  }
}

<?xml version="1.0" encoding="utf-8"?>

  
    
      
        
        
      
    
  
  
  

<?xml version="1.0" encoding="utf-8"?>

  Hello World, PhoneActivity!
  我的手机拨号器