uu-android/WeiChat/src/main/java/com/xzjmyk/pm/activity/util/FileUtil.java

package com.xzjmyk.pm.activity.util;

import android.os.Environment;
import android.text.TextUtils;

import com.xzjmyk.pm.activity.bean.User;
import com.xzjmyk.pm.activity.MyApplication;

import java.io.File;
import java.util.UUID;

public class FileUtil {

	private static final int TYPE_IMAGE = 1;
	private static final int TYPE_ADUIO = 2;
	private static final int TYPE_VIDEO = 3;

	/**
	 * {@link #TYPE_IMAGE}<br/>
	 * {@link #TYPE_ADUIO}<br/>
	 * {@link #TYPE_VIDEO} <br/>
	 * 
	 * @param type
	 * @return
	 */
	private static String getPublicFilePath(int type) {
		String fileDir = null;
		String fileSuffix = null;
		switch (type) {
		case TYPE_ADUIO:
			fileDir = MyApplication.getInstance().mVoicesDir;
			fileSuffix = ".mp3";
			break;
		case TYPE_VIDEO:
			fileDir = MyApplication.getInstance().mVideosDir;
			fileSuffix = ".mp4";
			break;
		case TYPE_IMAGE:
			fileDir = MyApplication.getInstance().mPicturesDir;
			fileSuffix = ".jpg";
			break;
		}
		if (fileDir == null) {
			return null;
		}
		File file = new File(fileDir);
		if (!file.exists()) {
			if (!file.mkdirs()) {
				return null;
			}
		}
		return fileDir + File.separator + UUID.randomUUID().toString().replaceAll("-", "") + fileSuffix;
	}

	/**
	 * {@link #TYPE_ADUIO}<br/>
	 * {@link #TYPE_VIDEO} <br/>
	 * 
	 * @param type
	 * @return
	 */
	private static String getPrivateFilePath(int type, String userId) {
		String fileDir = null;
		String fileSuffix = null;
		switch (type) {
		case TYPE_ADUIO:
			fileDir = MyApplication.getInstance().mAppDir + File.separator + userId + File.separator + Environment.DIRECTORY_MUSIC;
			fileSuffix = ".mp3";
			break;
		case TYPE_VIDEO:
			fileDir = MyApplication.getInstance().mAppDir + File.separator + userId + File.separator + Environment.DIRECTORY_MOVIES;
			fileSuffix = ".mp4";
			break;
		}
		if (fileDir == null) {
			return null;
		}
		File file = new File(fileDir);
		if (!file.exists()) {
			if (!file.mkdirs()) {
				return null;
			}
		}
		return fileDir + File.separator + UUID.randomUUID().toString().replaceAll("-", "") + fileSuffix;
	}

	public static String getRandomImageFilePath() {
		return getPublicFilePath(TYPE_IMAGE);
	}

	public static String getRandomAudioFilePath() {
		User user = MyApplication.getInstance().mLoginUser;
		if (user != null && !TextUtils.isEmpty(user.getUserId())) {
			return getPrivateFilePath(TYPE_ADUIO, user.getUserId());
		} else {
			return getPublicFilePath(TYPE_ADUIO);
		}
	}

	public static String getRandomAudioAmrFilePath() {
		User user = MyApplication.getInstance().mLoginUser;
		String filePath = null;
		if (user != null && !TextUtils.isEmpty(user.getUserId())) {
			filePath = getPrivateFilePath(TYPE_ADUIO, user.getUserId());
		} else {
			filePath = getPublicFilePath(TYPE_ADUIO);
		}
		if (!TextUtils.isEmpty(filePath)) {
			return filePath.replace(".mp3", ".amr");
		} else {
			return null;
		}
	}

	public static String getRandomVideoFilePath() {
		User user = MyApplication.getInstance().mLoginUser;
		if (user != null && !TextUtils.isEmpty(user.getUserId())) {
			return getPrivateFilePath(TYPE_VIDEO, user.getUserId());
		} else {
			return getPublicFilePath(TYPE_VIDEO);
		}
	}

	// ///////////////////////////////////////////////////////////////////////////////////////////////////

	public static void createFileDir(String fileDir) {
		File fd = new File(fileDir);
		if (!fd.exists()) {
			fd.mkdirs();
		}
	}

	/**
	 * 
	 * @param fullName
	 */
	public static void delFile(String fullName) {
		File file = new File(fullName);
		if (file.exists()) {
			if (file.isFile()) {
				try {
					file.delete();
				} catch (Exception e) {
					e.printStackTrace();
				}
			}
		}
	}

	/**
	 * 删除文件夹里面的所有文件
	 * 
	 * @param path
	 *            String 文件夹路径 如 /sdcard/data/
	 */
	public static void delAllFile(String path) {
		File file = new File(path);
		if (!file.exists()) {
			return;
		}
		if (!file.isDirectory()) {
			return;
		}
		String[] tempList = file.list();
		File temp = null;
		for (int i = 0; i < tempList.length; i++) {
			System.out.println(path + tempList[i]);
			if (path.endsWith(File.separator)) {
				temp = new File(path + tempList[i]);
			} else {
				temp = new File(path + File.separator + tempList[i]);
			}
			if (temp.isFile()) {
				temp.delete();
			}
			if (temp.isDirectory()) {
				delAllFile(path + "/" + tempList[i]); // 先删除文件夹里面的文件
				delFolder(path + "/" + tempList[i]); // 再删除空文件夹
			}
		}
	}

	/**
	 * 删除文件夹
	 * 
	 *            String 文件夹路径及名称 如/sdcard/data/
	 *            String
	 * @return boolean
	 */
	public static void delFolder(String folderPath) {
		try {
			delAllFile(folderPath); // 删除完里面所有内容
			String filePath = folderPath;
			filePath = filePath.toString();
			File myFilePath = new File(filePath);
			myFilePath.delete(); // 删除空文件夹
		} catch (Exception e) {
			System.out.println("删除文件夹操作出错");
			e.printStackTrace();
		}
	}

}