adnroid dialog

网上看到AlertDialog,今天在Laucher项目中用到了.

new AlertDialog.Builder(context) 
    .setTitle("行车记录仪")
    .setMessage("是否打开")
    .setPositiveButton("是", new DialogInterface.OnClickListener() {

            @Override
            public void onClick(DialogInterface dialog, int which) {
                gotoApp(CAMERA_PACKET,CAMERA_CLASSNAME);
            }
        })   
   .setNegativeButton("否", null)
   .show();

gotoApp（）根据包名和类名打开一个应用

    private void gotoApp(String packetName,String className){
        try {
            sendMsg(Contacts.HEX_OTHER_MODEL);
            Intent intent = new Intent();
            intent.setClassName(packetName, className);
            intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            startActivity(intent);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }