see 04/13 log

CHANGELOG.md

+* `20/04/13` [add] NumberUtils. Publish v1.28.0.
+* `20/04/12` [opt] TimeUtils#SDF_THREAD_LOCAL.
+* `20/04/11` [add] SDCardUtils#getXxTotalSize, SDCardUtils#getXxAvailableSize. FileUtils#getFsTotalSize, FileUtils#getFsAvailableSize.
 * `20/04/10` [fix] FileUtils#isFileExists; FragmentUtils#getTop bug. Publish v1.27.6.
 * `20/04/09` [add] UriUtils#res2Uri, UriUtils#uri2File support QQBrowser; ThreadUtils#getMainHandler; PathUtils#getxxPathExternalFirst.
 * `20/04/08` [fix] ActivityUtils#finish bug. Publish v1.27.5.

buildSrc/src/main/groovy/Config.groovy

@@ -15,7 +15,7 @@ class Config {
     static minSdkVersion = 14
     static targetSdkVersion = 29
     static versionCode = 1_026_001
-    static versionName = '1.27.6'// E.g. 1.9.72 => 1,009,072
+    static versionName = '1.28.0'// E.g. 1.9.72 => 1,009,072
 
     // lib version
     static gradlePluginVersion = '3.5.0'

feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/device/DeviceActivity.kt

@@ -4,8 +4,6 @@ import android.content.Context
 import android.content.Intent
 import android.os.Build
 import com.blankj.common.activity.CommonActivity
-import com.blankj.common.activity.CommonActivityItemsView
-import com.blankj.common.activity.CommonActivityTitleView
 import com.blankj.common.item.CommonItem
 import com.blankj.common.item.CommonItemTitle
 import com.blankj.utilcode.pkg.R

feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/sdcard/SDCardActivity.kt

@@ -32,19 +32,15 @@ class SDCardActivity : CommonActivity() {
     }
 
     override fun bindItems(): MutableList<CommonItem<*>> {
-        val mountedSDCardPath = SDCardUtils.getMountedSDCardPath()
-        val sizeItems = CollectionUtils.collect(mountedSDCardPath) { input ->
-            val totalInfo = "total: " + ConvertUtils.byte2FitMemorySize(SDCardUtils.getTotalSize(input))
-            val availableInfo = "available: " + ConvertUtils.byte2FitMemorySize(SDCardUtils.getAvailableSize(input))
-            CommonItemTitle(input, "$totalInfo, $availableInfo")
-        }
-        val result: ArrayList<CommonItem<*>> = CollectionUtils.newArrayList(
+        return CollectionUtils.newArrayList(
                 CommonItemTitle("isSDCardEnableByEnvironment", SDCardUtils.isSDCardEnableByEnvironment().toString()),
                 CommonItemTitle("getSDCardPathByEnvironment", SDCardUtils.getSDCardPathByEnvironment()),
                 CommonItemTitle("getSDCardInfo", SDCardUtils.getSDCardInfo().toString()),
-                CommonItemTitle("getMountedSDCardPath", mountedSDCardPath.toString())
+                CommonItemTitle("getMountedSDCardPath", SDCardUtils.getMountedSDCardPath().toString()),
+                CommonItemTitle("getExternalTotalSize", ConvertUtils.byte2FitMemorySize(SDCardUtils.getExternalTotalSize(), 2)),
+                CommonItemTitle("getExternalAvailableSize", ConvertUtils.byte2FitMemorySize(SDCardUtils.getExternalAvailableSize(), 2)),
+                CommonItemTitle("getInternalTotalSize", ConvertUtils.byte2FitMemorySize(SDCardUtils.getInternalTotalSize(), 2)),
+                CommonItemTitle("getInternalAvailableSize", ConvertUtils.byte2FitMemorySize(SDCardUtils.getInternalAvailableSize(), 2))
         )
-        result.addAll(sizeItems)
-        return result
     }
 }

lib/utilcode/README-CN.md

@@ -2,10 +2,10 @@
 
 Gradle:
 ```groovy
-implementation 'com.blankj:utilcode:1.27.6'
+implementation 'com.blankj:utilcode:1.28.0'
 
 // if u use AndroidX, use the following
-implementation 'com.blankj:utilcodex:1.27.6'
+implementation 'com.blankj:utilcodex:1.28.0'
 ```
 
 
@@ -487,6 +487,8 @@ getFileName               : 根据全路径获取文件名
 getFileNameNoExtension    : 根据全路径获取文件名不带拓展名
 getFileExtension          : 根据全路径获取文件拓展名
 notifySystemToScan        : 通知系统扫描文件
+getFsTotalSize            : 获取文件系统总大小
+getFsAvailableSize        : 获取文件系统可用大小
 ```
 
 * ### Fragment 相关 -> [FragmentUtils.java][fragment.java] -> [Demo][fragment.demo]
@@ -695,6 +697,12 @@ cancelAll                   : 取消所有通知
 setNotificationBarVisibility: 设置通知栏是否可见
 ```
 
+* ### 数字相关 -> [NumberUtils.java][number.java] -> [Test][number.test]
+```
+format      : 格式化
+float2Double: 浮点转双精度
+```
+
 * ### 对象相关 -> [ObjectUtils.java][object.java] -> [Test][object.test]
 ```
 isEmpty          : 判断对象是否为空
@@ -913,8 +921,10 @@ isSDCardEnableByEnvironment: 根据 Environment 判断 SD 卡是否可用
 getSDCardPathByEnvironment : 根据 Environment 获取 SD 卡路径
 getSDCardInfo              : 获取 SD 卡信息
 getMountedSDCardPath       : 获取已挂载的 SD 卡路径
-getTotalSize               : 获取 SD 卡总大小
-getAvailableSize           : 获取 SD 卡可用大小
+getExternalTotalSize       : 获取外置 SD 卡总大小
+getExternalAvailableSize   : 获取外置 SD 卡可用大小
+getInternalTotalSize       : 获取内置 SD 卡总大小
+getInternalAvailableSize   : 获取内置 SD 卡可用大小
 ```
 
 * ### 服务相关 -> [ServiceUtils.java][service.java]
@@ -1086,6 +1096,7 @@ setDeliver              : 设置任务结束后交付的线程
 
 * ### 时间相关 -> [TimeUtils.java][time.java] -> [Test][time.test]
 ```
+getSafeDateFormat       : 获取安全的日期格式
 millis2String           : 将时间戳转为时间字符串
 string2Millis           : 将时间字符串转为时间戳
 string2Date             : 将时间字符串转为 Date 类型
@@ -1306,6 +1317,9 @@ getComments       : 获取压缩文件中的注释链表
 [notification.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/NotificationUtils.java
 [notification.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/notification/NotificationActivity.kt
 
+[number.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/NumberUtils.java
+[number.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/NumberUtilsTest.java
+
 [object.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/ObjectUtils.java
 [object.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/ObjectUtilsTest.java
 

lib/utilcode/README.md

@@ -2,10 +2,10 @@
 
 Gradle:
 ```groovy
-implementation 'com.blankj:utilcode:1.27.6'
+implementation 'com.blankj:utilcode:1.28.0'
 
 // if u use AndroidX, use the following
-implementation 'com.blankj:utilcodex:1.27.6'
+implementation 'com.blankj:utilcodex:1.28.0'
 ```
 
 
@@ -487,6 +487,8 @@ getFileName
 getFileNameNoExtension
 getFileExtension
 notifySystemToScan
+getFsTotalSize
+getFsAvailableSize
 ```
 
 * ### About Fragment -> [FragmentUtils.java][fragment.java] -> [Demo][fragment.demo]
@@ -695,6 +697,12 @@ cancelAll
 setNotificationBarVisibility
 ```
 
+* ### About Number -> [NumberUtils.java][number.java] -> [Test][number.test]
+```
+format
+float2Double
+```
+
 * ### About Object -> [ObjectUtils.java][object.java] -> [Test][object.test]
 ```
 isEmpty
@@ -913,8 +921,10 @@ isSDCardEnableByEnvironment
 getSDCardPathByEnvironment
 getSDCardInfo
 getMountedSDCardPath
-getTotalSize
-getAvailableSize
+getExternalTotalSize
+getExternalAvailableSize
+getInternalTotalSize
+getInternalAvailableSize
 ```
 
 * ### About Service -> [ServiceUtils.java][service.java]
@@ -1086,6 +1096,7 @@ setDeliver
 
 * ### About Time -> [TimeUtils.java][time.java] -> [Test][time.test]
 ```
+getSafeDateFormat
 millis2String
 string2Millis
 string2Date
@@ -1303,6 +1314,9 @@ getComments
 [notification.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/NotificationUtils.java
 [notification.demo]: https://github.com/Blankj/AndroidUtilCode/blob/master/feature/utilcode/pkg/src/main/java/com/blankj/utilcode/pkg/feature/notification/NotificationActivity.kt
 
+[number.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/NumberUtils.java
+[number.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/NumberUtilsTest.java
+
 [object.java]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/main/java/com/blankj/utilcode/util/ObjectUtils.java
 [object.test]: https://github.com/Blankj/AndroidUtilCode/blob/master/lib/utilcode/src/test/java/com/blankj/utilcode/util/ObjectUtilsTest.java
 

lib/utilcode/src/main/java/com/blankj/utilcode/util/ConvertUtils.java

@@ -418,16 +418,32 @@ public final class ConvertUtils {
      */
     @SuppressLint("DefaultLocale")
     public static String byte2FitMemorySize(final long byteSize) {
+        return byte2FitMemorySize(byteSize, 3);
+    }
+
+    /**
+     * Size of byte to fit size of memory.
+     * <p>to three decimal places</p>
+     *
+     * @param byteSize  Size of byte.
+     * @param precision The precision
+     * @return fit size of memory
+     */
+    @SuppressLint("DefaultLocale")
+    public static String byte2FitMemorySize(final long byteSize, int precision) {
+        if (precision < 0) {
+            throw new IllegalArgumentException("precision shouldn't be less than zero!");
+        }
         if (byteSize < 0) {
-            return "shouldn't be less than zero!";
+            throw new IllegalArgumentException("byteSize shouldn't be less than zero!");
         } else if (byteSize < MemoryConstants.KB) {
-            return String.format("%.3fB", (double) byteSize);
+            return String.format("%." + precision + "fB", (double) byteSize);
         } else if (byteSize < MemoryConstants.MB) {
-            return String.format("%.3fKB", (double) byteSize / MemoryConstants.KB);
+            return String.format("%." + precision + "fKB", (double) byteSize / MemoryConstants.KB);
         } else if (byteSize < MemoryConstants.GB) {
-            return String.format("%.3fMB", (double) byteSize / MemoryConstants.MB);
+            return String.format("%." + precision + "fMB", (double) byteSize / MemoryConstants.MB);
         } else {
-            return String.format("%.3fGB", (double) byteSize / MemoryConstants.GB);
+            return String.format("%." + precision + "fGB", (double) byteSize / MemoryConstants.GB);
         }
     }
 

lib/utilcode/src/main/java/com/blankj/utilcode/util/FileUtils.java

@@ -5,6 +5,8 @@ import android.content.Intent;
 import android.content.res.AssetFileDescriptor;
 import android.net.Uri;
 import android.os.Build;
+import android.os.StatFs;
+import android.text.TextUtils;
 
 import java.io.BufferedInputStream;
 import java.io.File;
@@ -76,10 +78,10 @@ public final class FileUtils {
         if (file.exists()) {
             return true;
         }
-        return isFileExists29(filePath);
+        return isFileExistsApi29(filePath);
     }
 
-    private static boolean isFileExists29(String filePath) {
+    private static boolean isFileExistsApi29(String filePath) {
         if (Build.VERSION.SDK_INT >= 29) {
             try {
                 Uri uri = Uri.parse(filePath);
@@ -1379,6 +1381,15 @@ public final class FileUtils {
         return filePath.substring(lastPoi + 1);
     }
 
+    /**
+     * Notify system to scan the file.
+     *
+     * @param filePath The path of file.
+     */
+    public static void notifySystemToScan(final String filePath) {
+        notifySystemToScan(getFileByPath(filePath));
+    }
+
     /**
      * Notify system to scan the file.
      *
@@ -1393,12 +1404,45 @@ public final class FileUtils {
     }
 
     /**
-     * Notify system to scan the file.
+     * Return the total size of file system.
      *
-     * @param filePath The path of file.
+     * @param anyPathInFs Any path in file system.
+     * @return the total size of file system
      */
-    public static void notifySystemToScan(final String filePath) {
-        notifySystemToScan(getFileByPath(filePath));
+    public static long getFsTotalSize(String anyPathInFs) {
+        if (TextUtils.isEmpty(anyPathInFs)) return 0;
+        StatFs statFs = new StatFs(anyPathInFs);
+        long blockSize;
+        long totalSize;
+        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.JELLY_BEAN_MR2) {
+            blockSize = statFs.getBlockSizeLong();
+            totalSize = statFs.getBlockCountLong();
+        } else {
+            blockSize = statFs.getBlockSize();
+            totalSize = statFs.getBlockCount();
+        }
+        return blockSize * totalSize;
+    }
+
+    /**
+     * Return the available size of file system.
+     *
+     * @param anyPathInFs Any path in file system.
+     * @return the available size of file system
+     */
+    public static long getFsAvailableSize(final String anyPathInFs) {
+        if (TextUtils.isEmpty(anyPathInFs)) return 0;
+        StatFs statFs = new StatFs(anyPathInFs);
+        long blockSize;
+        long availableSize;
+        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.JELLY_BEAN_MR2) {
+            blockSize = statFs.getBlockSizeLong();
+            availableSize = statFs.getAvailableBlocksLong();
+        } else {
+            blockSize = statFs.getBlockSize();
+            availableSize = statFs.getAvailableBlocks();
+        }
+        return blockSize * availableSize;
     }
 
     ///////////////////////////////////////////////////////////////////////////

lib/utilcode/src/main/java/com/blankj/utilcode/util/KeyboardUtils.java

@@ -243,7 +243,7 @@ public final class KeyboardUtils {
 
     /**
      * Fix the bug of 5497 in Android.
-     * <p>Don't set adjustResize</p>
+     * <p>It will clean the adjustResize</p>
      *
      * @param window The window.
      */

lib/utilcode/src/main/java/com/blankj/utilcode/util/NumberUtils.java

+package com.blankj.utilcode.util;
+
+import java.math.BigDecimal;
+import java.math.RoundingMode;
+import java.text.DecimalFormat;
+import java.text.NumberFormat;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2020/04/12
+ *     desc  : utils about number
+ * </pre>
+ */
+public final class NumberUtils {
+
+    private static final ThreadLocal<DecimalFormat> DF_THREAD_LOCAL = new ThreadLocal<DecimalFormat>() {
+        @Override
+        protected DecimalFormat initialValue() {
+            return (DecimalFormat) NumberFormat.getInstance();
+        }
+    };
+
+    public static DecimalFormat getSafeDecimalFormat() {
+        return DF_THREAD_LOCAL.get();
+    }
+
+    private NumberUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    /**
+     * Format the value.
+     *
+     * @param value          The value.
+     * @param fractionDigits The number of digits allowed in the fraction portion of value.
+     * @return the format value
+     */
+    public static String format(float value, int fractionDigits) {
+        return format(value, false, 1, fractionDigits, true);
+    }
+
+    /**
+     * Format the value.
+     *
+     * @param value          The value.
+     * @param fractionDigits The number of digits allowed in the fraction portion of value.
+     * @param isHalfUp       True to rounded towards the nearest neighbor.
+     * @return the format value
+     */
+    public static String format(float value, int fractionDigits, boolean isHalfUp) {
+        return format(value, false, 1, fractionDigits, isHalfUp);
+    }
+
+    /**
+     * Format the value.
+     *
+     * @param value            The value.
+     * @param minIntegerDigits The minimum number of digits allowed in the integer portion of value.
+     * @param fractionDigits   The number of digits allowed in the fraction portion of value.
+     * @param isHalfUp         True to rounded towards the nearest neighbor.
+     * @return the format value
+     */
+    public static String format(float value, int minIntegerDigits, int fractionDigits, boolean isHalfUp) {
+        return format(value, false, minIntegerDigits, fractionDigits, isHalfUp);
+    }
+
+    /**
+     * Format the value.
+     *
+     * @param value          The value.
+     * @param isGrouping     True to set grouping will be used in this format, false otherwise.
+     * @param fractionDigits The number of digits allowed in the fraction portion of value.
+     * @return the format value
+     */
+    public static String format(float value, boolean isGrouping, int fractionDigits) {
+        return format(value, isGrouping, 1, fractionDigits, true);
+    }
+
+    /**
+     * Format the value.
+     *
+     * @param value          The value.
+     * @param isGrouping     True to set grouping will be used in this format, false otherwise.
+     * @param fractionDigits The number of digits allowed in the fraction portion of value.
+     * @param isHalfUp       True to rounded towards the nearest neighbor.
+     * @return the format value
+     */
+    public static String format(float value, boolean isGrouping, int fractionDigits, boolean isHalfUp) {
+        return format(value, isGrouping, 1, fractionDigits, isHalfUp);
+    }
+
+    /**
+     * Format the value.
+     *
+     * @param value            The value.
+     * @param isGrouping       True to set grouping will be used in this format, false otherwise.
+     * @param minIntegerDigits The minimum number of digits allowed in the integer portion of value.
+     * @param fractionDigits   The number of digits allowed in the fraction portion of value.
+     * @param isHalfUp         True to rounded towards the nearest neighbor.
+     * @return the format value
+     */
+    public static String format(float value, boolean isGrouping, int minIntegerDigits, int fractionDigits, boolean isHalfUp) {
+        return format(float2Double(value), isGrouping, minIntegerDigits, fractionDigits, isHalfUp);
+    }
+
+    /**
+     * Format the value.
+     *
+     * @param value          The value.
+     * @param fractionDigits The number of digits allowed in the fraction portion of value.
+     * @return the format value
+     */
+    public static String format(double value, int fractionDigits) {
+        return format(value, false, 1, fractionDigits, true);
+    }
+
+    /**
+     * Format the value.
+     *
+     * @param value          The value.
+     * @param fractionDigits The number of digits allowed in the fraction portion of value.
+     * @param isHalfUp       True to rounded towards the nearest neighbor.
+     * @return the format value
+     */
+    public static String format(double value, int fractionDigits, boolean isHalfUp) {
+        return format(value, false, 1, fractionDigits, isHalfUp);
+    }
+
+    /**
+     * Format the value.
+     *
+     * @param value            The value.
+     * @param minIntegerDigits The minimum number of digits allowed in the integer portion of value.
+     * @param fractionDigits   The number of digits allowed in the fraction portion of value.
+     * @param isHalfUp         True to rounded towards the nearest neighbor.
+     * @return the format value
+     */
+    public static String format(double value, int minIntegerDigits, int fractionDigits, boolean isHalfUp) {
+        return format(value, false, minIntegerDigits, fractionDigits, isHalfUp);
+    }
+
+    /**
+     * Format the value.
+     *
+     * @param value          The value.
+     * @param isGrouping     True to set grouping will be used in this format, false otherwise.
+     * @param fractionDigits The number of digits allowed in the fraction portion of value.
+     * @return the format value
+     */
+    public static String format(double value, boolean isGrouping, int fractionDigits) {
+        return format(value, isGrouping, 1, fractionDigits, true);
+    }
+
+    /**
+     * Format the value.
+     *
+     * @param value          The value.
+     * @param isGrouping     True to set grouping will be used in this format, false otherwise.
+     * @param fractionDigits The number of digits allowed in the fraction portion of value.
+     * @param isHalfUp       True to rounded towards the nearest neighbor.
+     * @return the format value
+     */
+    public static String format(double value, boolean isGrouping, int fractionDigits, boolean isHalfUp) {
+        return format(value, isGrouping, 1, fractionDigits, isHalfUp);
+    }
+
+    /**
+     * Format the value.
+     *
+     * @param value            The value.
+     * @param isGrouping       True to set grouping will be used in this format, false otherwise.
+     * @param minIntegerDigits The minimum number of digits allowed in the integer portion of value.
+     * @param fractionDigits   The number of digits allowed in the fraction portion of value.
+     * @param isHalfUp         True to rounded towards the nearest neighbor.
+     * @return the format value
+     */
+    public static String format(double value, boolean isGrouping, int minIntegerDigits, int fractionDigits, boolean isHalfUp) {
+        DecimalFormat nf = getSafeDecimalFormat();
+        nf.setGroupingUsed(isGrouping);
+        nf.setRoundingMode(isHalfUp ? RoundingMode.HALF_UP : RoundingMode.DOWN);
+        nf.setMinimumIntegerDigits(minIntegerDigits);
+        nf.setMinimumFractionDigits(fractionDigits);
+        nf.setMaximumFractionDigits(fractionDigits);
+        return nf.format(value);
+    }
+
+    /**
+     * Float to double.
+     *
+     * @param value The value.
+     * @return the number of double
+     */
+    public static double float2Double(float value) {
+        return new BigDecimal(String.valueOf(value)).doubleValue();
+    }
+}

lib/utilcode/src/main/java/com/blankj/utilcode/util/SDCardUtils.java

@@ -2,9 +2,9 @@ package com.blankj.utilcode.util;
 
 import android.content.Context;
 import android.os.Environment;
-import android.os.StatFs;
 import android.os.storage.StorageManager;
 import android.os.storage.StorageVolume;
+import android.text.format.Formatter;
 
 import java.lang.reflect.Array;
 import java.lang.reflect.InvocationTargetException;
@@ -125,44 +125,41 @@ public final class SDCardUtils {
         return path;
     }
 
+
     /**
-     * Return the total size of sdcard.
+     * Return the total size of external storage
      *
-     * @param path The path.
-     * @return the total size of sdcard
+     * @return the total size of external storage
      */
-    public static long getTotalSize(String path) {
-        StatFs statFs = new StatFs(path);
-        long blockSize;
-        long totalSize;
-        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.JELLY_BEAN_MR2) {
-            blockSize = statFs.getBlockSizeLong();
-            totalSize = statFs.getBlockCountLong();
-        } else {
-            blockSize = statFs.getBlockSize();
-            totalSize = statFs.getBlockCount();
-        }
-        return blockSize * totalSize;
+    public static long getExternalTotalSize() {
+        return UtilsBridge.getFsTotalSize(getSDCardPathByEnvironment());
     }
 
     /**
-     * Return the available size of sdcard.
+     * Return the available size of external storage.
      *
-     * @param path The path.
-     * @return the available size of sdcard
+     * @return the available size of external storage
      */
-    public static long getAvailableSize(final String path) {
-        StatFs statFs = new StatFs(path);
-        long blockSize;
-        long availableSize;
-        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.JELLY_BEAN_MR2) {
-            blockSize = statFs.getBlockSizeLong();
-            availableSize = statFs.getAvailableBlocksLong();
-        } else {
-            blockSize = statFs.getBlockSize();
-            availableSize = statFs.getAvailableBlocks();
-        }
-        return blockSize * availableSize;
+    public static long getExternalAvailableSize() {
+        return UtilsBridge.getFsAvailableSize(getSDCardPathByEnvironment());
+    }
+
+    /**
+     * Return the total size of internal storage
+     *
+     * @return the total size of internal storage
+     */
+    public static long getInternalTotalSize() {
+        return UtilsBridge.getFsTotalSize(Environment.getDataDirectory().getAbsolutePath());
+    }
+
+    /**
+     * Return the available size of internal storage.
+     *
+     * @return the available size of internal storage
+     */
+    public static long getInternalAvailableSize() {
+        return UtilsBridge.getFsAvailableSize(Environment.getDataDirectory().getAbsolutePath());
     }
 
     public static class SDCardInfo {
@@ -170,11 +167,15 @@ public final class SDCardUtils {
         private String  path;
         private String  state;
         private boolean isRemovable;
+        private long    totalSize;
+        private long    availableSize;
 
         SDCardInfo(String path, String state, boolean isRemovable) {
             this.path = path;
             this.state = state;
             this.isRemovable = isRemovable;
+            this.totalSize = UtilsBridge.getFsTotalSize(path);
+            this.availableSize = UtilsBridge.getFsAvailableSize(path);
         }
 
         public String getPath() {
@@ -189,12 +190,22 @@ public final class SDCardUtils {
             return isRemovable;
         }
 
+        public long getTotalSize() {
+            return totalSize;
+        }
+
+        public long getAvailableSize() {
+            return availableSize;
+        }
+
         @Override
         public String toString() {
             return "SDCardInfo {" +
                     "path = " + path +
                     ", state = " + state +
                     ", isRemovable = " + isRemovable +
+                    ", totalSize = " + Formatter.formatFileSize(Utils.getApp(), totalSize) +
+                    ", availableSize = " + Formatter.formatFileSize(Utils.getApp(), availableSize) +
                     '}';
         }
     }

lib/utilcode/src/main/java/com/blankj/utilcode/util/TimeUtils.java

 package com.blankj.utilcode.util;
 
+import android.annotation.SuppressLint;
 import android.support.annotation.NonNull;
 
 import com.blankj.utilcode.constant.TimeConstants;
@@ -10,7 +11,9 @@ import java.text.SimpleDateFormat;
 import java.util.Calendar;
 import java.util.Date;
 import java.util.GregorianCalendar;
+import java.util.HashMap;
 import java.util.Locale;
+import java.util.Map;
 
 /**
  * <pre>
@@ -22,19 +25,26 @@ import java.util.Locale;
  */
 public final class TimeUtils {
 
-    private static final ThreadLocal<SimpleDateFormat> SDF_THREAD_LOCAL = new ThreadLocal<>();
+    private static final ThreadLocal<Map<String, SimpleDateFormat>> SDF_THREAD_LOCAL
+            = new ThreadLocal<Map<String, SimpleDateFormat>>() {
+        @Override
+        protected Map<String, SimpleDateFormat> initialValue() {
+            return new HashMap<>();
+        }
+    };
 
     private static SimpleDateFormat getDefaultFormat() {
-        return getDateFormat("yyyy-MM-dd HH:mm:ss");
+        return getSafeDateFormat("yyyy-MM-dd HH:mm:ss");
     }
 
-    private static SimpleDateFormat getDateFormat(String pattern) {
-        SimpleDateFormat simpleDateFormat = SDF_THREAD_LOCAL.get();
+    @SuppressLint("SimpleDateFormat")
+    public static SimpleDateFormat getSafeDateFormat(String pattern) {
+        Map<String, SimpleDateFormat> sdfMap = SDF_THREAD_LOCAL.get();
+        //noinspection ConstantConditions
+        SimpleDateFormat simpleDateFormat = sdfMap.get(pattern);
         if (simpleDateFormat == null) {
-            simpleDateFormat = new SimpleDateFormat(pattern, Locale.getDefault());
-            SDF_THREAD_LOCAL.set(simpleDateFormat);
-        } else {
-            simpleDateFormat.applyPattern(pattern);
+            simpleDateFormat = new SimpleDateFormat(pattern);
+            sdfMap.put(pattern, simpleDateFormat);
         }
         return simpleDateFormat;
     }
@@ -62,7 +72,7 @@ public final class TimeUtils {
      * @return the formatted time string
      */
     public static String millis2String(long millis, @NonNull final String pattern) {
-        return millis2String(millis, getDateFormat(pattern));
+        return millis2String(millis, getSafeDateFormat(pattern));
     }
 
     /**
@@ -95,7 +105,7 @@ public final class TimeUtils {
      * @return the milliseconds
      */
     public static long string2Millis(final String time, @NonNull final String pattern) {
-        return string2Millis(time, getDateFormat(pattern));
+        return string2Millis(time, getSafeDateFormat(pattern));
     }
 
     /**
@@ -133,7 +143,7 @@ public final class TimeUtils {
      * @return the date
      */
     public static Date string2Date(final String time, @NonNull final String pattern) {
-        return string2Date(time, getDateFormat(pattern));
+        return string2Date(time, getSafeDateFormat(pattern));
     }
 
     /**
@@ -171,7 +181,7 @@ public final class TimeUtils {
      * @return the formatted time string
      */
     public static String date2String(final Date date, @NonNull final String pattern) {
-        return getDateFormat(pattern).format(date);
+        return getSafeDateFormat(pattern).format(date);
     }
 
     /**

lib/utilcode/src/main/java/com/blankj/utilcode/util/UtilsBridge.java

@@ -276,6 +276,14 @@ class UtilsBridge {
         return FileUtils.createFileByDeleteOldFile(file);
     }
 
+    static long getFsTotalSize(String path) {
+        return FileUtils.getFsTotalSize(path);
+    }
+
+    static long getFsAvailableSize(String path) {
+        return FileUtils.getFsAvailableSize(path);
+    }
+
     ///////////////////////////////////////////////////////////////////////////
     // GsonUtils
     ///////////////////////////////////////////////////////////////////////////
@@ -402,6 +410,10 @@ class UtilsBridge {
     ///////////////////////////////////////////////////////////////////////////
     // SDCardUtils
     ///////////////////////////////////////////////////////////////////////////
+    static String getSDCardPathByEnvironment() {
+        return SDCardUtils.getSDCardPathByEnvironment();
+    }
+
     static boolean isSDCardEnableByEnvironment() {
         return SDCardUtils.isSDCardEnableByEnvironment();
     }

lib/utilcode/src/test/java/com/blankj/utilcode/util/BaseTest.java

 package com.blankj.utilcode.util;
 
 import android.support.annotation.NonNull;
-import java.util.concurrent.Executor;
+
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.robolectric.RobolectricTestRunner;
@@ -9,6 +9,8 @@ import org.robolectric.RuntimeEnvironment;
 import org.robolectric.annotation.Config;
 import org.robolectric.shadows.ShadowLog;
 
+import java.util.concurrent.Executor;
+
 /**
  * <pre>
  *     author: Blankj
@@ -18,7 +20,7 @@ import org.robolectric.shadows.ShadowLog;
  * </pre>
  */
 @RunWith(RobolectricTestRunner.class)
-@Config(manifest = Config.NONE,shadows = { ShadowLog.class })
+@Config(manifest = Config.NONE, shadows = {ShadowLog.class})
 public class BaseTest {
 
     @BusUtils.Bus(tag = "base")

lib/utilcode/src/test/java/com/blankj/utilcode/util/NumberUtilsTest.java

+package com.blankj.utilcode.util;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+/**
+ * <pre>
+ *     author: blankj
+ *     blog  : http://blankj.com
+ *     time  : 2020/04/13
+ *     desc  : test NumberUtils
+ * </pre>
+ */
+public class NumberUtilsTest {
+
+    @Test
+    public void format() {
+        double val = Math.PI * 100000;// 314159.2653589793
+
+        Assert.assertEquals("314159.27", NumberUtils.format(val, 2));
+        Assert.assertEquals("314159.265", NumberUtils.format(val, 3));
+
+        Assert.assertEquals("314159.27", NumberUtils.format(val, 2, true));
+        Assert.assertEquals("314159.26", NumberUtils.format(val, 2, false));
+
+        Assert.assertEquals("00314159.27", NumberUtils.format(val, 8, 2, true));
+        Assert.assertEquals("0000314159.27", NumberUtils.format(val, 10, 2, true));
+
+        Assert.assertEquals("314,159.27", NumberUtils.format(val, true, 2));
+        Assert.assertEquals("314159.27", NumberUtils.format(val, false, 2));
+
+        Assert.assertEquals("314159.27", NumberUtils.format(val, false, 2, true));
+        Assert.assertEquals("314159.26", NumberUtils.format(val, false, 2, false));
+
+        Assert.assertEquals("314159.27", NumberUtils.format(val, false, 2, true));
+        Assert.assertEquals("314159.265", NumberUtils.format(val, false, 3, false));
+    }
+
+    @Test
+    public void float2Double() {
+        float val = 3.14f;
+        System.out.println((double) val);
+        System.out.println(NumberUtils.float2Double(val));
+    }
+}
\ No newline at end of file