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GeezerVison is showing github.com — see 08/20 log · snailset/AndroidUtilCode@5ae8ac2

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  • README.md
  • utilcode
    • build.gradle
    • src/main/java/com/blankj/utilcode/utils
      • FileUtils.java
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‎README.md‎

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+10-1Lines changed: 10 additions & 1 deletion
  • Display the source diff
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Original file line numberDiff line numberDiff line change
@@ -82,6 +82,15 @@
8282
> - 将输入流写入文件 *writeFileFromIS*
8383
> - 将字符串写入文件 *writeFileFromString*
8484
> - 简单获取文件编码格式 *getFileCharsetSimple*
85+
> - 获取文件行数 *getFileLines*
86+
> - 指定编码按行读取文件到List *readFile2List*
87+
> - 指定编码按行读取文件到StringBuilder中 *readFile2SB*
88+
> - byte单位转换（单位：unit） *byte2Unit*
89+
> - 获取文件大小 *getFileSize*
90+
> - 根据全路径获取最长目录 *getDirName*
91+
> - 根据全路径获取文件名 *getFileName*
92+
> - 根据全路径获取文件名不带拓展名 *getFileNameNoExtension*
93+
> - 根据全路径获取文件拓展名 *getFileExtension*
8594
8695
> - **图片相关→[ImageUtils.java][image.java]**
8796
> - 完善ing
@@ -205,7 +214,7 @@
205214
***
206215
Gradle:
207216
``` groovy
208-
compile 'com.blankj:utilcode:1.1.0'
217+
compile 'com.blankj:utilcode:1.1.1'
209218
```
210219

211220
### Proguard
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‎utilcode/build.gradle‎

Copy file name to clipboardExpand all lines: utilcode/build.gradle
+1-1Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -8,7 +8,7 @@ android {
88
minSdkVersion 11
99
targetSdkVersion 23
1010
versionCode 2
11-
versionName "1.1.0"
11+
versionName "1.1.1"
1212
}
1313
buildTypes {
1414
release {
Collapse file

‎utilcode/src/main/java/com/blankj/utilcode/utils/FileUtils.java‎

Copy file name to clipboardExpand all lines: utilcode/src/main/java/com/blankj/utilcode/utils/FileUtils.java
+92-98Lines changed: 92 additions & 98 deletions
Original file line numberDiff line numberDiff line change
@@ -1,6 +1,7 @@
11
package com.blankj.utilcode.utils;
22

33
import java.io.BufferedInputStream;
4+
import java.io.BufferedOutputStream;
45
import java.io.BufferedReader;
56
import java.io.Closeable;
67
import java.io.File;
@@ -433,7 +434,7 @@ public static boolean writeFileFromIS(File file, InputStream is, boolean append)
433434
if (!createOrExistsFile(file)) return false;
434435
OutputStream os = null;
435436
try {
436-
os = new FileOutputStream(file, append);
437+
os = new BufferedOutputStream(new FileOutputStream(file, append));
437438
byte data[] = new byte[KB];
438439
while (is.read(data) != -1) os.write(data);
439440
return true;
@@ -500,14 +501,14 @@ public static String getFileCharsetSimple(String filePath) {
500501
*/
501502
public static String getFileCharsetSimple(File file) {
502503
int p = 0;
503-
BufferedInputStream bin = null;
504+
InputStream is = null;
504505
try {
505-
bin = new BufferedInputStream(new FileInputStream(file));
506-
p = (bin.read() << 8) + bin.read();
506+
is = new BufferedInputStream(new FileInputStream(file));
507+
p = (is.read() << 8) + is.read();
507508
} catch (IOException e) {
508509
e.printStackTrace();
509510
} finally {
510-
closeIO(bin);
511+
closeIO(is);
511512
}
512513
switch (p) {
513514
case 0xefbb:
@@ -558,63 +559,67 @@ public static int getFileLines(File file) {
558559
}
559560

560561
/**
561-
* 按行读取文件
562+
* 指定编码按行读取文件到List
562563
*
563-
* @param file 文件
564-
* @return 行链表
564+
* @param filePath 文件路径
565+
* @param charsetName 编码格式
566+
* @return 文件行链表
565567
*/
566-
public static List<String> readFileByLine(File file) {
567-
return readFileByLine(file, null);
568+
public static List<String> readFile2List(String filePath, String charsetName) {
569+
return readFile2List(getFileByPath(filePath), charsetName);
568570
}
569571

570572
/**
571-
* 按行读取文件
573+
* 指定编码按行读取文件到List
572574
*
573575
* @param file 文件
574-
* @param charsetName 字符编码格式
575-
* @return 行链表
576+
* @param charsetName 编码格式
577+
* @return 文件行链表
576578
*/
577-
public static List<String> readFileByLine(File file, String charsetName) {
578-
if (file == null) return null;
579-
List<String> list = new ArrayList<>();
580-
BufferedReader reader = null;
581-
try {
582-
if (charsetName == null) {
583-
reader = new BufferedReader(new FileReader(file));
584-
} else {
585-
reader = new BufferedReader(new InputStreamReader(new FileInputStream(file), charsetName));
586-
}
587-
String line;
588-
while ((line = reader.readLine()) != null) {
589-
list.add(line);
590-
}
591-
} catch (IOException e) {
592-
e.printStackTrace();
593-
} finally {
594-
closeIO(reader);
595-
}
596-
return list;
579+
public static List<String> readFile2List(File file, String charsetName) {
580+
return readFile2List(file, 0, 0x7FFFFFFF, charsetName);
597581
}
598582

599583
/**
600-
* 读取前几行数据
584+
* 指定编码按行读取文件到List
601585
*
602-
* @param file 文件
603-
* @param endLineNum 需要读取的行数
586+
* @param filePath 文件路径
587+
* @param start 需要读取的开始行数
588+
* @param end 需要读取的结束行数
589+
* @param charsetName 编码格式
590+
* @return 包含制定行的list
591+
*/
592+
public static List<String> readFile2List(String filePath, int start, int end, String charsetName) {
593+
return readFile2List(getFileByPath(filePath), start, end, charsetName);
594+
}
595+
596+
/**
597+
* 指定编码按行读取文件到List
598+
*
599+
* @param file 文件
600+
* @param start 需要读取的开始行数
601+
* @param end 需要读取的结束行数
602+
* @param charsetName 编码格式
604603
* @return 包含制定行的list
605604
*/
606-
public static List<String> readFileByLine(File file, int endLineNum) {
605+
public static List<String> readFile2List(File file, int start, int end, String charsetName) {
607606
if (file == null) return null;
608-
List<String> list = new ArrayList<>();
607+
if (start > end) return null;
608+
List<String> list = null;
609609
BufferedReader reader = null;
610610
try {
611-
reader = new BufferedReader(new FileReader(file));
612611
String line;
612+
int curLine = 1;
613+
list = new ArrayList<>();
614+
if (StringUtils.isSpace(charsetName)) {
615+
reader = new BufferedReader(new FileReader(file));
616+
} else {
617+
reader = new BufferedReader(new InputStreamReader(new FileInputStream(file), charsetName));
618+
}
613619
while ((line = reader.readLine()) != null) {
614-
list.add(line);
615-
if (list.size() == endLineNum) {
616-
break;
617-
}
620+
if (curLine > end) break;
621+
if (start <= curLine && curLine <= end) list.add(line);
622+
++curLine;
618623
}
619624
} catch (IOException e) {
620625
e.printStackTrace();
@@ -624,73 +629,44 @@ public static List<String> readFileByLine(File file, int endLineNum) {
624629
return list;
625630
}
626631

627-
public static StringBuilder readFile(String filePath, String charsetName) {
628-
File file = new File(filePath);
629-
if (!file.isFile()) return null;
630-
return readFile(file, charsetName);
632+
/**
633+
* 指定编码按行读取文件到StringBuilder中
634+
*
635+
* @param filePath 文件路径
636+
* @param charsetName 编码格式
637+
* @return StringBuilder对象
638+
*/
639+
public static StringBuilder readFile2SB(String filePath, String charsetName) {
640+
return readFile2SB(getFileByPath(filePath), charsetName);
631641
}
632642

633-
public static StringBuilder readFile(File file, String charsetName) {
634-
StringBuilder sb = new StringBuilder("");
643+
/**
644+
* 指定编码按行读取文件到StringBuilder中
645+
*
646+
* @param file 文件
647+
* @param charsetName 编码格式
648+
* @return StringBuilder对象
649+
*/
650+
public static StringBuilder readFile2SB(File file, String charsetName) {
651+
if (file == null) return null;
652+
StringBuilder sb = null;
635653
BufferedReader reader = null;
636654
try {
637-
InputStreamReader is = new InputStreamReader(new FileInputStream(file), charsetName);
638-
reader = new BufferedReader(is);
655+
sb = new StringBuilder();
656+
reader = new BufferedReader(new InputStreamReader(new FileInputStream(file), charsetName));
639657
String line;
640658
while ((line = reader.readLine()) != null) {
641-
if (!sb.toString().equals("")) {
642-
sb.append("\r\n");
643-
}
644659
sb.append(line);
660+
sb.append("\r\n");// windows系统换行为\r\n，Linux为\n
645661
}
646-
reader.close();
647662
} catch (IOException e) {
648663
e.printStackTrace();
649664
} finally {
650-
if (reader != null) {
651-
try {
652-
reader.close();
653-
} catch (IOException e) {
654-
e.printStackTrace();
655-
}
656-
}
665+
closeIO(reader);
657666
}
658667
return sb;
659668
}
660669

661-
662-
/**
663-
* @param filePath
664-
* @param charsetName
665-
* @return
666-
*/
667-
public static List<String> readFileToList(String filePath, String charsetName) {
668-
File file = new File(filePath);
669-
if (!file.isFile()) return null;
670-
List<String> fileContent = new ArrayList<>();
671-
BufferedReader reader = null;
672-
try {
673-
InputStreamReader is = new InputStreamReader(new FileInputStream(file), charsetName);
674-
reader = new BufferedReader(is);
675-
String line;
676-
while ((line = reader.readLine()) != null) {
677-
fileContent.add(line);
678-
}
679-
reader.close();
680-
return fileContent;
681-
} catch (IOException e) {
682-
throw new RuntimeException("IOException occurred. ", e);
683-
} finally {
684-
if (reader != null) {
685-
try {
686-
reader.close();
687-
} catch (IOException e) {
688-
e.printStackTrace();
689-
}
690-
}
691-
}
692-
}
693-
694670
/**
695671
* byte单位转换（单位：unit）
696672
*
@@ -750,23 +726,35 @@ public static double getFileSize(File file, int unit) {
750726
}
751727

752728
/**
753-
* 获取文件路径的父级目录
729+
* 根据全路径获取最长目录
754730
*
755-
* @param filePath
756-
* @return
731+
* @param filePath 文件路径
732+
* @return filePath最长目录
757733
*/
758734
public static String getDirName(String filePath) {
759735
if (StringUtils.isSpace(filePath)) return filePath;
760736
int lastSep = filePath.lastIndexOf(File.separator);
761737
return lastSep == -1 ? "" : filePath.substring(0, lastSep + 1);
762738
}
763739

740+
/**
741+
* 根据全路径获取文件名
742+
*
743+
* @param filePath 文件路径
744+
* @return 文件名
745+
*/
764746
public static String getFileName(String filePath) {
765747
if (StringUtils.isSpace(filePath)) return filePath;
766748
int lastSep = filePath.lastIndexOf(File.separator);
767749
return lastSep == -1 ? filePath : filePath.substring(lastSep + 1);
768750
}
769751

752+
/**
753+
* 根据全路径获取文件名不带拓展名
754+
*
755+
* @param filePath 文件路径
756+
* @return 文件名不带拓展名
757+
*/
770758
public static String getFileNameNoExtension(String filePath) {
771759
if (StringUtils.isSpace(filePath)) return filePath;
772760
int lastPoi = filePath.lastIndexOf('.');
@@ -780,6 +768,12 @@ public static String getFileNameNoExtension(String filePath) {
780768
return filePath.substring(lastSep + 1, lastPoi);
781769
}
782770

771+
/**
772+
* 根据全路径获取文件拓展名
773+
*
774+
* @param filePath 文件路径
775+
* @return 文件拓展名
776+
*/
783777
public static String getFileExtension(String filePath) {
784778
if (StringUtils.isSpace(filePath)) return filePath;
785779
int lastPoi = filePath.lastIndexOf('.');

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