CacheUtil.java

package com.socks.jiandan.utils;

import android.os.Environment;

import java.io.File;
import java.util.Random;

/**
 * Created by zhaokaiqiang on 15/4/22.
 */
public class CacheUtil {

	public static final String FILE_SAVE = "JianDan";

	/**
	 * 获取保存图片的名称
	 * @param cacheFile
	 * @param urls
	 * @return
	 */
	public static String getSharePicName(File cacheFile, String[] urls) {
		return cacheFile.getAbsolutePath() + new Random().nextInt(100000) + "." + urls[urls
				.length - 1];
	}


	/**
	 * 获取图片保存文件夹路径
	 *
	 * @return
	 */
	public static String getSaveDirPath() {
		return Environment
				.getExternalStorageDirectory().getAbsolutePath() + File.separator + FILE_SAVE;
	}


	/**
	 * 获取新的图片保存名称
	 *
	 * @param cacheFile
	 * @param urls
	 * @return
	 */
	public static String getSavePicName(File cacheFile, String[] urls) {
		return "jiandan_" + cacheFile.getName().substring(0, 8) + "." +
				urls[urls.length - 1];
	}

}