MainHandler.java

package com.kitty.poclient.common;

import android.os.Handler;
import android.os.Message;
import android.widget.Toast;

import com.kitty.poclient.fragment.usb.ExternalDeviceFragment;
import com.kitty.poclient.widget.CustomToast;

public class MainHandler extends Handler {
	public static final int SHOW_INFO = 0;
	
	public static final int USB_INSERT = 1;
	public static final int USB_REMOVE = 2;

	public static final int SHOW_ALERT = 10;
	
	@Override
	public void handleMessage(Message msg) {
		
		String croutonText = (String) (msg.obj);
		
		if(UpnpApp.mainActivity != null){
			switch (msg.what) {
				case SHOW_INFO:
					CroutonHelper.showSystemInfoCrouton(croutonText);
					break;
					
				case USB_INSERT:
					if(ExternalDeviceFragment.IS_ALIVE){
						ExternalDeviceFragment.hasExternalDevice = true;
						ExternalDeviceFragment.getCurrentInstance().openFirstDir();
					}
					/*
					CroutonHelper.showSystemInfoCrouton(croutonText);*/
					break;
					
				case USB_REMOVE:
					if(ExternalDeviceFragment.IS_ALIVE){
						ExternalDeviceFragment.hasExternalDevice = false;
						ExternalDeviceFragment.getCurrentInstance().showNoUsbdeviceDialog();
					}
					/*
					CroutonHelper.showSystemInfoCrouton(croutonText);*/
					break;
	
				case SHOW_ALERT:
					CroutonHelper.showSystemAlertCrouton(croutonText);
					break;
					
			}
			
		} else {
			
			CustomToast.makeText(UpnpApp.context, croutonText, Toast.LENGTH_SHORT).show();
		}

	}
	
	public void showCommonMsg(int msgType, String msgText){
		Message msg = obtainMessage(msgType, msgText); //(int what, Object obj)
		sendMessage(msg); 
	}
	
//	public void showInfo(String msgText){
//		showCommonMsg(SHOW_INFO, msgText);
//	}
	public void showInfo(int resourceId){
		String infoText = getString(resourceId);
		showCommonMsg(SHOW_INFO, infoText);
	}
	public void showInfo(String croutonText){
		showCommonMsg(SHOW_INFO, croutonText);
	}
	
	public void showAlert(int resourceId){
		String alertText = getString(resourceId);
		showCommonMsg(SHOW_ALERT, alertText);
	}
	public void showAlert(String croutonText){
		showCommonMsg(SHOW_ALERT, croutonText);
	}
	
	/**
	 * 从资源文件获取文本信息。
	 * @param resourceId The desired resource identifier, as generated by the aapt tool. This integer encodes the package, type, and resource entry. The value 0 is an invalid identifier.
	 * @return the string value associated with a particular resource ID. It will be stripped of any styled text information. 
	 */
	public String getString(int resourceId){
		String msgText = UpnpApp.context.getResources().getString(resourceId);
		return msgText;
	}
}