Android笔记九.Intent异常处理及常用系统调用

(1)拨打电话
     Toast.makeText( PocketSphinxDemo.this, "正在启动拨号器,请稍后...", Toast.LENGTH_SHORT).show();
     Intent intent1=new Intent();	 //创建一个intent
     intent1.setAction(Intent.ACTION_DIAL);	//设置intent的Action属性
     intent1.setData(Uri.parse("tel://"));	//设置intent的Date属性
     startActivity(intent1);	//启动Activity	//启动Activity
(2)打开浏览器
     try{
      Toast.makeText( PocketSphinxDemo.this, "正在启动浏览器,请稍后...", Toast.LENGTH_SHORT).show();
      Uri uri=Uri.parse("http://www.baidu.com");	 //将字符串转换为uri对象
      Intent intent2=new Intent(Intent.ACTION_VIEW,uri);	//创建一个同时指定Action属性和Data属性的intent
      intent2.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
      startActivity(intent2);	 //启动Activity
     }catch(ActivityNotFoundException e)
     {
              Toast.makeText(PocketSphinxDemo.this, " 启动'浏览器'异常！\n请检查是否安装了该应用.", Toast.LENGTH_SHORT).show();
     }
(3)打开地图
     try{
      Toast.makeText( PocketSphinxDemo.this, "正在打开地图,请稍后...", Toast.LENGTH_SHORT).show();
      Uri uri=Uri.parse("geo:38.899533,-77.036476");//将字符串转换为uri对象
      Intent intent3=new Intent();
      intent3.setAction(Intent.ACTION_VIEW);
      intent3.setData(uri);
      intent3.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
      startActivity(intent3);	  
     }
     catch(ActivityNotFoundException e)
     {
               Toast.makeText(PocketSphinxDemo.this, " 启动'地图'异常！\n请检查是否安装了该应用.", Toast.LENGTH_SHORT).show();
     }           
(3)编辑短信(调用发送短信程序)
     Toast.makeText( PocketSphinxDemo.this, "正在打开短信,请稍后...", Toast.LENGTH_SHORT).show();
     Intent intent4=new Intent(Intent.ACTION_VIEW);	//创建一个带Action属性的intent
     intent4.setType("vnd.android-dir/mms-sms");
     startActivity(intent4);
(4)查看联系人
     Toast.makeText( PocketSphinxDemo.this, "正在启动联系人,请稍后...", Toast.LENGTH_SHORT).show();
     Intent intent5 = new Intent(Intent.ACTION_VIEW, ContactsContract.Contacts.CONTENT_URI);
     startActivity(intent5);
(5)打开相机
     Toast.makeText( PocketSphinxDemo.this, "正在启动相机,请稍后...", Toast.LENGTH_SHORT).show(); 
     Intent intent7=new Intent();
     intent7.setAction(MediaStore.INTENT_ACTION_STILL_IMAGE_CAMERA);	//启动相机app
     startActivity(intent7);
(6)打开图库
     Toast.makeText( PocketSphinxDemo.this, "正在打开图库,请稍后...", Toast.LENGTH_SHORT).show(); 
     Intent intent8 = new Intent();
     intent8.setType("image/*");
     intent8.setAction(Intent.ACTION_GET_CONTENT);
     startActivity(intent8);
(7)打开计算器 
     Toast.makeText( PocketSphinxDemo.this, "正在启动计算器,请稍后...", Toast.LENGTH_SHORT).show();
     Intent intent11 = new Intent();
     intent11.setClassName("com.android.calculator2","com.android.calculator2.Calculator");	//调用setClassName指定了启动哪个应用程序
     startActivity(intent11);
(8)打开系统设置 
     Intent intentSet= new Intent(Settings.ACTION_SETTINGS);
     startActivity(intentSet);
(9)打开时钟
     try{
     Intent intentclock=new Intent();
              intentclock.setClassName("com.android.deskclock", "com.android.deskclock.DeskClock");
              startActivity(intentclock);
     }
     catch(ActivityNotFoundException e)
      {
               Toast.makeText(PocketSphinxDemo.this, " 启动'时钟'异常！\n请检查是否安装了该应用.", Toast.LENGTH_SHORT).show();
     }
(10)打开文件管理器 
 try{ 
       Intent intentFile=new Intent();
        intentFile.setAction(Intent.ACTION_VIEW);
       intentFile.setType("text/plain");
      startActivity(intentFile);
     }catch(ActivityNotFoundException e)
     {
         Toast.makeText(PocketSphinxDemo.this, " 启动'文件管理器'异常！\n请检查是否安装了该应用.", Toast.LENGTH_SHORT).show();
     }
(11)打开QQ
try{ 
      Toast.makeText( PocketSphinxDemo.this, "正在打开QQ聊天工具,请稍后...", Toast.LENGTH_SHORT).show();
      Intent intent12=new Intent();
      intent12.setClassName("com.tencent.mobileqq","com.tencent.mobileqq.activity.SplashActivity");
     intent12.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
     startActivity(intent12);
     }
  catch(ActivityNotFoundException e)
  {
       Toast.makeText(PocketSphinxDemo.this, " 启动'QQ'异常！\n请检查是否安装了该应用.", Toast.LENGTH_SHORT).show();
  }
(12)打开微信 
 try{  
      Toast.makeText( PocketSphinxDemo.this, "正在启动微信客户端,请稍后...", Toast.LENGTH_SHORT).show();
      Intent intent4=new Intent();
       intent4.setClassName("com.tencent.mm","com.tencent.mm.ui.LauncherUI");
       intent4.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
       startActivity(intent4);
  }
  catch(ActivityNotFoundException e)
  {
       Toast.makeText(PocketSphinxDemo.this, " 启动'微信'异常！\n请检查是否安装了该应用.", Toast.LENGTH_SHORT).show();
  }
(13)重启手机 
String cmd = "su -c reboot"; 
 try {
          Toast.makeText(PocketSphinxDemo.this, "正在重启手机,请稍后...", Toast.LENGTH_SHORT).show();
           Runtime.getRuntime().exec(cmd);
     } catch (IOException e) {
            // TODO Auto-generated catch block
           new AlertDialog.Builder(PocketSphinxDemo.this).setTitle("Error").setMessage( 
                                         e.getMessage()).setPositiveButton("OK", null).show();
                 }