erpsuiteandroid/RA Image/app/src/main/java/com/usai/util/RAUtil.java

package com.usai.util;

import android.app.AlertDialog;
import android.content.Context;
import android.content.pm.PackageManager;

/**
 * Created by ray on 27/06/2017.
 */

public class RAUtil {
    public static Boolean checkPermission(final Context context, String permission)
    {
        // 调用Context的checkCallingOrSelfPermission来检查权限

        if (PackageManager.PERMISSION_GRANTED!= context.checkCallingOrSelfPermission(permission)) {

            String[] tmp = permission.split("\\.");
            String permission_name = tmp[tmp.length - 1];
            permission_name = permission_name.replace("_"," ");


            new AlertDialog.Builder(context)
                    .setTitle("Warning")
                    .setMessage("RA Image need " + permission_name.toLowerCase() + " permission")
                    .setPositiveButton("OK", null)
                    .show();

            return false;
        }
        return true;
    }

    public static String lastPathComponent(String path){

        int start=path.lastIndexOf("/");
        int end=path.lastIndexOf(".");
        if(start!=-1 && end!=-1){
            return path.substring(start+1,end);
        }else{
            return null;
        }

    }
}