package com.richerpay.ryshop.util;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import com.richerpay.ryshop.log.KLog;
import android.content.Context;
import android.content.SharedPreferences;
import android.graphics.Bitmap;
import android.os.Environment;
import android.os.StatFs;
/**
* 文件工具类
*
* @version 1.0
*/
public class ToolFile {
private static final String TAG = ToolFile.class.getSimpleName();
/**
* 检查是å¦å·²æŒ‚è½½SDå¡é•œåƒï¼ˆæ˜¯å¦å˜åœ¨SDå¡ï¼‰
*
* @return
*/
public static boolean isMountedSDCard() {
if (Environment.MEDIA_MOUNTED.equals(Environment
.getExternalStorageState())) {
return true;
} else {
KLog.w(TAG, "SDCARD is not MOUNTED !");
return false;
}
}
/**
* 获å–SDå¡å‰©ä½™å®¹é‡ï¼ˆå•ä½Byte）
*
* @return
*/
@SuppressWarnings("deprecation")
public static long gainSDFreeSize() {
if (isMountedSDCard()) {
// å–å¾—SDå¡æ–‡ä»¶è·¯å¾„
File path = Environment.getExternalStorageDirectory();
StatFs sf = new StatFs(path.getPath());
// 获å–å•ä¸ªæ•°æ®å—的大å°(Byte)
long blockSize = sf.getBlockSize();
// 空闲的数æ®å—çš„æ•°é‡
long freeBlocks = sf.getAvailableBlocks();
// 返回SDå¡ç©ºé—²å¤§å°
return freeBlocks * blockSize; // å•ä½Byte
} else {
return 0;
}
}
/**
* 获å–SDå¡æ€»å®¹é‡ï¼ˆå•ä½Byte）
*
* @return
*/
@SuppressWarnings("deprecation")
public static long gainSDAllSize() {
if (isMountedSDCard()) {
// å–å¾—SDå¡æ–‡ä»¶è·¯å¾„
File path = Environment.getExternalStorageDirectory();
StatFs sf = new StatFs(path.getPath());
// 获å–å•ä¸ªæ•°æ®å—的大å°(Byte)
long blockSize = sf.getBlockSize();
// 获å–所有数æ®å—æ•°
long allBlocks = sf.getBlockCount();
// 返回SDå¡å¤§å°ï¼ˆByte）
return allBlocks * blockSize;
} else {
return 0;
}
}
/**
* 获å–å¯ç”¨çš„SDå¡è·¯å¾„（若SDå¡ä¸æ²¡æœ‰æŒ‚载则返回""）
*
* @return
*/
public static String gainSDCardPath() {
if (isMountedSDCard()) {
File sdcardDir = Environment.getExternalStorageDirectory();
if (!sdcardDir.canWrite()) {
KLog.w(TAG, "SDCARD can not write !");
}
return sdcardDir.getPath();
}
return "";
}
/**
* 以行为å•ä½è¯»å–文件内容，一次读一整行，常用于读é¢å‘è¡Œçš„æ ¼å¼åŒ–文件
*
* @param filePath
* 文件路径
*/
public static String readFileByLines(String filePath) throws IOException {
BufferedReader reader = null;
StringBuffer sb = new StringBuffer();
try {
reader = new BufferedReader(new InputStreamReader(
new FileInputStream(filePath),
System.getProperty("file.encoding")));
String tempString = null;
while ((tempString = reader.readLine()) != null) {
sb.append(tempString);
sb.append("\n");
}
reader.close();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (reader != null) {
reader.close();
}
}
return sb.toString();
}
/**
* 以行为å•ä½è¯»å–文件内容，一次读一整行，常用于读é¢å‘è¡Œçš„æ ¼å¼åŒ–文件
*
* @param filePath
* 文件路径
* @param encoding
* 写文件编ç
*/
public static String readFileByLines(String filePath, String encoding)
throws IOException {
BufferedReader reader = null;
StringBuffer sb = new StringBuffer();
try {
reader = new BufferedReader(new InputStreamReader(
new FileInputStream(filePath), encoding));
String tempString = null;
while ((tempString = reader.readLine()) != null) {
sb.append(tempString);
sb.append("\n");
}
reader.close();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (reader != null) {
reader.close();
}
}
return sb.toString();
}
/**
* ä¿å˜å†…容
*
* @param filePath
* 文件路径
* @param content
* ä¿å˜çš„内容
* @throws IOException
*/
public static void saveToFile(String filePath, String content)
throws IOException {
saveToFile(filePath, content, System.getProperty("file.encoding"));
}
/**
* 指定编ç ä¿å˜å†…容
*
* @param filePath
* 文件路径
* @param content
* ä¿å˜çš„内容
* @param encoding
* 写文件编ç
* @throws IOException
*/
public static void saveToFile(String filePath, String content,
String encoding) throws IOException {
BufferedWriter writer = null;
File file = new File(filePath);
try {
if (!file.getParentFile().exists()) {
file.getParentFile().mkdirs();
}
writer = new BufferedWriter(new OutputStreamWriter(
new FileOutputStream(file, false), encoding));
writer.write(content);
} finally {
if (writer != null) {
writer.close();
}
}
}
/**
* è¿½åŠ æ–‡æœ¬
*
* @param content
* 需è¦è¿½åŠ 的内容
* @param file
* å¾…è¿½åŠ æ–‡ä»¶æº
* @throws IOException
*/
public static void appendToFile(String content, File file)
throws IOException {
appendToFile(content, file, System.getProperty("file.encoding"));
}
/**
* è¿½åŠ æ–‡æœ¬
*
* @param content
* 需è¦è¿½åŠ 的内容
* @param file
* å¾…è¿½åŠ æ–‡ä»¶æº
* @param encoding
* 文件编ç
* @throws IOException
*/
public static void appendToFile(String content, File file, String encoding)
throws IOException {
BufferedWriter writer = null;
try {
if (!file.getParentFile().exists()) {
file.getParentFile().mkdirs();
}
writer = new BufferedWriter(new OutputStreamWriter(
new FileOutputStream(file, true), encoding));
writer.write(content);
} finally {
if (writer != null) {
writer.close();
}
}
}
/**
* 判æ–文件是å¦å˜åœ¨
*
* @param filePath
* 文件路径
* @return 是å¦å˜åœ¨
* @throws Exception
*/
public static Boolean isExsit(String filePath) {
Boolean flag = false;
try {
File file = new File(filePath);
if (file.exists()) {
flag = true;
}
} catch (Exception e) {
KLog.e("判æ–文件失败-->" + e.getMessage());
}
return flag;
}
/**
* 快速读å–程åºåº”用包下的文件内容
*
* @param context
* 上下文
* @param filename
* 文件å称
* @return 文件内容
* @throws IOException
*/
public static String read(Context context, String filename)
throws IOException {
FileInputStream inStream = context.openFileInput(filename);
ByteArrayOutputStream outStream = new ByteArrayOutputStream();
byte[] buffer = new byte[1024];
int len = 0;
while ((len = inStream.read(buffer)) != -1) {
outStream.write(buffer, 0, len);
}
byte[] data = outStream.toByteArray();
return new String(data);
}
/**
* 读å–指定目录文件的文件内容
*
* @param fileName
* 文件å称
* @return 文件内容
* @throws Exception
*/
@SuppressWarnings("resource")
public static String read(String fileName) throws IOException {
FileInputStream inStream = new FileInputStream(fileName);
ByteArrayOutputStream outStream = new ByteArrayOutputStream();
byte[] buffer = new byte[1024];
int len = 0;
while ((len = inStream.read(buffer)) != -1) {
outStream.write(buffer, 0, len);
}
byte[] data = outStream.toByteArray();
return new String(data);
}
/***
* 以行为å•ä½è¯»å–文件内容，一次读一整行，常用于读é¢å‘è¡Œçš„æ ¼å¼åŒ–文件
*
* @param fileName
* 文件å称
* @param encoding
* 文件编ç
* @return å—符串内容
* @throws IOException
*/
public static String read(String fileName, String encoding)
throws IOException {
BufferedReader reader = null;
StringBuffer sb = new StringBuffer();
try {
reader = new BufferedReader(new InputStreamReader(
new FileInputStream(fileName), encoding));
String tempString = null;
while ((tempString = reader.readLine()) != null) {
sb.append(tempString);
}
} catch (IOException e) {
e.printStackTrace();
} finally {
if (reader != null) {
reader.close();
}
}
return sb.toString();
}
/**
* 读å–raw目录的文件内容
*
* @param context
* 内容上下文
* @param rawFileId
* raw文件åid
* @return
*/
public static String readRawValue(Context context, int rawFileId) {
String result = "";
try {
InputStream is = context.getResources().openRawResource(rawFileId);
int len = is.available();
byte[] buffer = new byte[len];
is.read(buffer);
result = new String(buffer, "UTF-8");
is.close();
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
/**
* 读å–assets目录的文件内容
*
* @param context
* 内容上下文
* @param fileName
* 文件å称，包å«æ‰©å±•å
* @return
*/
public static String readAssetsValue(Context context, String fileName) {
String result = "";
try {
InputStream is = context.getResources().getAssets().open(fileName);
int len = is.available();
byte[] buffer = new byte[len];
is.read(buffer);
result = new String(buffer, "UTF-8");
is.close();
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
/**
* 读å–assets目录的文件内容
*
* @param context
* 内容上下文
* @param fileName
* 文件å称，包å«æ‰©å±•å
* @return
*/
public static List