Android简易电话拨号器实例详解

安卓开发简易电话拨号器，具体内容如下

我是基于安卓4.2.2开发的，下面是我写的mainactivity.java代码：

package com.example.phone; 
 
import android.support.v7.app.actionbaractivity; 
import android.support.v4.app.fragment; 
import android.content.intent; 
import android.net.uri; 
import android.os.bundle; 
import android.view.layoutinflater; 
import android.view.menu; 
import android.view.menuitem; 
import android.view.view; 
import android.view.view.onclicklistener; 
import android.view.viewgroup; 
import android.widget.button; 
import android.widget.edittext; 
 
public class mainactivity extends actionbaractivity { 
 
  @override 
  protected void oncreate(bundle savedinstancestate) { 
    super.oncreate(savedinstancestate); 
    setcontentview(r.layout.activity_main); 
 
    if (savedinstancestate == null) { 
      getsupportfragmentmanager().begintransaction() 
          .add(r.id.container, new placeholderfragment()).commit(); 
    } 
  } 
 
  @override 
  public boolean oncreateoptionsmenu(menu menu) { 
 
    // inflate the menu; this adds items to the action bar if it is present. 
    getmenuinflater().inflate(r.menu.main, menu); 
    return true; 
  } 
 
  @override 
  public boolean onoptionsitemselected(menuitem item) { 
    // handle action bar item clicks here. the action bar will 
    // automatically handle clicks on the home/up button, so long 
    // as you specify a parent activity in androidmanifest.xml. 
    int id = item.getitemid(); 
    if (id == r.id.action_settings) { 
      return true; 
    } 
    return super.onoptionsitemselected(item); 
  } 
 
  /** 
   * a placeholder fragment containing a simple view. 
   */ 
  public static class placeholderfragment extends fragment { 
 
    public placeholderfragment() { 
    } 
 
    @override 
    public view oncreateview(layoutinflater inflater, viewgroup container, 
        bundle savedinstancestate) { 
      view rootview = inflater.inflate(r.layout.fragment_main, container, false); 
       
      final edittext numbertext=(edittext) rootview.findviewbyid(r.id.number); 
      button button=(button)rootview.findviewbyid(r.id.button); 
       
      button.setonclicklistener(new onclicklistener() 
      { 
 
        @override 
        public void onclick(view v) { 
           
          string number=numbertext.gettext().tostring(); 
          intent intent = new intent(intent.action_call,uri.parse("tel:"+number)); 
          startactivity(intent); 
           
           
          // todo auto-generated method stub 
           
        } 
         
      }); 
      return rootview; 
    } 
  } 
 
} 

布局文件我就不贴出来了，需要注意的是项目清单文件（androidmanifest.xml )中需要加入perimission: <uses-permission android:name="android.permission.call_phone"/>.我是安卓初学者，希望对和我一样的初学者有所帮助。

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。