From: TrillGates <williamtrillgates@gmail.com>
Date: Tue, 6 Jul 2021 08:00:38 +0000 (+0800)
Subject: add iclogger.
X-Git-Url: http://git.snicker.com.cn/Users/apple/Desktop/static/gitweb.js?a=commitdiff_plain;h=0336c5672ea6fb76e1808e3963717cb4bc8c8acd;p=ichardware.git

add iclogger.
---

diff --git a/app/build.gradle b/app/build.gradle
index f62ff1f..6532719 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -53,10 +53,10 @@ android {
 
     buildTypes {
         release {
-            zipAlignEnabled true     // zip 对齐优化
-            shrinkResources true       // 移除未使用的资源文件
+//            zipAlignEnabled true     // zip 对齐优化
+//            shrinkResources true       // 移除未使用的资源文件
             signingConfig signingConfigs.key
-            minifyEnabled true
+           // minifyEnabled true
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
             renderscriptDebuggable = false
             debuggable = false
@@ -134,4 +134,10 @@ dependencies {
     implementation 'com.jakewharton.threetenabp:threetenabp:1.2.2'
 
     implementation 'androidx.viewpager2:viewpager2:1.0.0'
+
+    implementation files('libs/android-logging-log4j-1.0.3.jar',
+            'libs/ftp4j-1.7.2.jar',
+            'libs/log4j-1.2.17.jar',
+            'libs/okio-2.4.3.jar')
+
 }
diff --git a/app/libs/android-logging-log4j-1.0.3.jar b/app/libs/android-logging-log4j-1.0.3.jar
new file mode 100644
index 0000000..7d4146f
Binary files /dev/null and b/app/libs/android-logging-log4j-1.0.3.jar differ
diff --git a/app/libs/ftp4j-1.7.2.jar b/app/libs/ftp4j-1.7.2.jar
new file mode 100644
index 0000000..fca26ec
Binary files /dev/null and b/app/libs/ftp4j-1.7.2.jar differ
diff --git a/app/libs/log4j-1.2.17.jar b/app/libs/log4j-1.2.17.jar
new file mode 100644
index 0000000..068867e
Binary files /dev/null and b/app/libs/log4j-1.2.17.jar differ
diff --git a/app/libs/okio-2.4.3.jar b/app/libs/okio-2.4.3.jar
new file mode 100644
index 0000000..6289cf6
Binary files /dev/null and b/app/libs/okio-2.4.3.jar differ
diff --git a/app/release/release/ICL02Sport_V26_202106201445_release.apk b/app/release/release/ICL02Sport_V26_202106201445_release.apk
deleted file mode 100644
index 94867a6..0000000
Binary files a/app/release/release/ICL02Sport_V26_202106201445_release.apk and /dev/null differ
diff --git a/app/release/release/ICL02Sport_V27_202107061547_release.apk b/app/release/release/ICL02Sport_V27_202107061547_release.apk
new file mode 100644
index 0000000..380f666
Binary files /dev/null and b/app/release/release/ICL02Sport_V27_202107061547_release.apk differ
diff --git a/app/release/release/output.json b/app/release/release/output.json
index dafa093..db984f3 100644
--- a/app/release/release/output.json
+++ b/app/release/release/output.json
@@ -1 +1 @@
-[{"outputType":{"type":"APK"},"apkData":{"type":"MAIN","splits":[],"versionCode":26,"versionName":"202106201445","enabled":true,"outputFile":"ICL02Sport_V26_202106201445_release.apk","fullName":"release","baseName":"release"},"path":"ICL02Sport_V26_202106201445_release.apk","properties":{}}]
\ No newline at end of file
+[{"outputType":{"type":"APK"},"apkData":{"type":"MAIN","splits":[],"versionCode":27,"versionName":"202107061547","enabled":true,"outputFile":"ICL02Sport_V27_202107061547_release.apk","fullName":"release","baseName":"release"},"path":"ICL02Sport_V27_202107061547_release.apk","properties":{}}]
\ No newline at end of file
diff --git a/app/src/main/java/com/ic/sport/PedometerActivity.java b/app/src/main/java/com/ic/sport/PedometerActivity.java
index 6e5181f..8ae7dc9 100644
--- a/app/src/main/java/com/ic/sport/PedometerActivity.java
+++ b/app/src/main/java/com/ic/sport/PedometerActivity.java
@@ -46,11 +46,14 @@ public class PedometerActivity extends AppCompatActivity
         pedometerModel = new ViewModelProvider(this, factory).get(PedometerModel.class);
 
         pedometerModel.getObsPedCount().observe(this, integer -> {
-            ((PedMainFragment)myAdapter.getFragment(1)).updatePedNumber(integer);
+            ((PedMainFragment) myAdapter.getFragment(1)).updatePedNumber(integer);
         });
 
         pedometerModel.getObsPedRecord().observe(this, record -> {
-            ((PedRecordFragment)myAdapter.getFragment(2)).updatePedRecord(record);
+            PedRecordFragment fragment = (PedRecordFragment) myAdapter.getFragment(2);
+            if (fragment != null) {
+                fragment.updatePedRecord(record);
+            }
         });
 
         pedometerModel.onBindService();
@@ -94,6 +97,7 @@ public class PedometerActivity extends AppCompatActivity
         myAdapter = new FragmentAdapter(getSupportFragmentManager(), getLifecycle());
         myViewPager2.setAdapter(myAdapter);
         myViewPager2.setCurrentItem(1);
+        myViewPager2.setOffscreenPageLimit(myAdapter.getItemCount());
         myViewPager2.registerOnPageChangeCallback(currentItemUpdater);
     }
 
@@ -109,15 +113,15 @@ public class PedometerActivity extends AppCompatActivity
     private final ViewPager2.OnPageChangeCallback currentItemUpdater = new ViewPager2.OnPageChangeCallback() {
         @Override
         public void onPageSelected(int position) {
-            IcLog.i(TAG,"onPageSelected"+position);
+            IcLog.i(TAG, "onPageSelected" + position);
             indicatorAdapter.updateIndicatorState(position);
         }
 
         @Override
         public void onPageScrollStateChanged(int newState) {
-            IcLog.i(TAG,"onPageScrollStateChanged"+newState);
+            IcLog.i(TAG, "onPageScrollStateChanged" + newState);
             if (newState == SCROLL_STATE_IDLE) {
-                IcLog.i(TAG,"onPageScrollStateChanged"+newState);
+                IcLog.i(TAG, "onPageScrollStateChanged" + newState);
             }
         }
     };
diff --git a/app/src/main/java/com/ic/sport/fragment/pedometer/PedRecordFragment.java b/app/src/main/java/com/ic/sport/fragment/pedometer/PedRecordFragment.java
index b7b0df8..b2b096a 100644
--- a/app/src/main/java/com/ic/sport/fragment/pedometer/PedRecordFragment.java
+++ b/app/src/main/java/com/ic/sport/fragment/pedometer/PedRecordFragment.java
@@ -58,7 +58,7 @@ public class PedRecordFragment extends Fragment {
     @Override
     public View onCreateView(LayoutInflater inflater, ViewGroup container,
                              Bundle savedInstanceState) {
-        View view = inflater.inflate(R.layout.fragment_ped_record, container, false);
+        View view = inflater.inflate(R.layout.fragment_ped_record, container);
         mSetupRv = view.findViewById(R.id.ped_record_rv);
         mSetupRv.addItemDecoration(new RecyclerView.ItemDecoration() {
             @Override
@@ -74,15 +74,20 @@ public class PedRecordFragment extends Fragment {
     }
 
     public void updatePedRecord(List<RecordParcelable> records) {
-        setupAdapter.updatePedRecordList(records);
+        if (setupAdapter != null) {
+            setupAdapter.updatePedRecordList(records);
+        }
         //移动到第一个位置上
-        mSetupRv.scrollToPosition(records.size() - 1);
+        if (mSetupRv != null && records != null) {
+            //不需要
+            //mSetupRv.scrollToPosition(records.size() - 1);
+        }
     }
 
     private void initRecyclerView() {
         setupAdapter = new PedRecordAdapter(mContext);
         LinearLayoutManager mLayoutManager =
-                new LinearLayoutManager(mContext, LinearLayoutManager.VERTICAL, true);
+                new LinearLayoutManager(mContext, LinearLayoutManager.VERTICAL, false);
         mSetupRv.setLayoutManager(mLayoutManager);
         mSetupRv.setAdapter(setupAdapter);
     }
diff --git a/app/src/main/java/com/ic/sport/presenter/PedometerPresenter.java b/app/src/main/java/com/ic/sport/presenter/PedometerPresenter.java
index eae3fb7..d319587 100644
--- a/app/src/main/java/com/ic/sport/presenter/PedometerPresenter.java
+++ b/app/src/main/java/com/ic/sport/presenter/PedometerPresenter.java
@@ -11,10 +11,12 @@ import androidx.lifecycle.MutableLiveData;
 import com.ic.aidl.ped.IPedAidlInterface;
 import com.ic.aidl.ped.IPedRemoteService;
 import com.ic.aidl.ped.RecordParcelable;
+import com.ic.sport.util.ICLogger;
 import com.ic.sport.util.IcLog;
 import com.ic.sport.util.ServiceUtil;
 
 import java.net.FileNameMap;
+import java.util.Collections;
 import java.util.List;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
@@ -139,6 +141,8 @@ public class PedometerPresenter {
 
         @Override
         public void updatePedRecord(List<RecordParcelable> record) {
+            ICLogger.d("record == > " + record);
+            Collections.reverse(record);
             mObsPedRecord.postValue(record);
         }
     };
diff --git a/app/src/main/java/com/ic/sport/util/ICLogger.java b/app/src/main/java/com/ic/sport/util/ICLogger.java
new file mode 100644
index 0000000..7623c85
--- /dev/null
+++ b/app/src/main/java/com/ic/sport/util/ICLogger.java
@@ -0,0 +1,266 @@
+package com.ic.sport.util;
+
+import android.content.Context;
+
+import org.apache.log4j.Level;
+import org.apache.log4j.Logger;
+import org.apache.log4j.PatternLayout;
+import org.apache.log4j.RollingFileAppender;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.io.PrintStream;
+
+import de.mindpipe.android.logging.log4j.LogConfigurator;
+
+import static org.apache.log4j.Logger.getLogger;
+
+
+public class ICLogger {
+
+    private static boolean isInitConfig = false;
+    private static Context mContext = null;
+
+    private static Logger Log = null;
+    //  private static java.util.logging.Logger originLog= getLogger(ICLogger.class.getSimpleName());
+    private static final boolean DEBUG = true;    //BuildConfig.DEBUG;
+
+    public static void setContext(Context context) {
+        mContext = context;
+    }
+
+    private static String getFunctionName() {
+        StackTraceElement[] currentStack = Thread.currentThread().getStackTrace();
+        if (currentStack == null) {
+            return null;
+        } else {
+            int stackLen = currentStack.length;
+
+            for (int i = 0; i < stackLen; ++i) {
+                StackTraceElement stackElement = currentStack[i];
+                if (!stackElement.isNativeMethod() &&
+                        !stackElement.getClassName().equals(Thread.class.getName()) &&
+                        !stackElement.getClassName().equals(ICLogger.class.getName())) {
+                    StringBuilder sb = new StringBuilder();
+                    sb.append("[ ");
+                    sb.append(Thread.currentThread().getName());
+                    sb.append(": ");
+                    sb.append(stackElement.getFileName());
+                    sb.append(":");
+                    sb.append(stackElement.getLineNumber());
+                    sb.append(" ");
+                    sb.append(stackElement.getMethodName());
+                    sb.append(" ]");
+                    return sb.toString();
+                }
+            }
+
+            return null;
+        }
+    }
+
+    /**
+     * 初始化与配置Logger   Log4j
+     * 日志信息格式中符号所代表的含义
+     * （1）－X号: X信息输出时左对齐。
+     * （2）%p: 输出日志信息优先级，即DEBUG，INFO，WARN，ERROR，FATAL。
+     * （3）%d: 输出日志时间点的日期或时间，默认格式为ISO8601，也可以在其后指定格式，比如：%d{yyy MMM dd HH:mm:ss,SSS}，输出类似：2002年10月18日 22：10：28，921。
+     * （4）%r: 输出自应用启动到输出该log信息耗费的毫秒数。
+     * （5）%c: 输出日志信息所属的类目，通常就是所在类的全名。
+     * （6）%t: 输出产生该日志事件的线程名。
+     * （7）%l: 输出日志事件的发生位置，相当于%C.%M(%F:%L)的组合,包括类目名、发生的线程，以及在代码中的行数。举例：Testlog4.main(TestLog4.java:10)。
+     * （8）%x: 输出和当前线程相关联的NDC(嵌套诊断环境),尤其用到像java servlets这样的多客户多线程的应用中。
+     * （9）%%: 输出一个"%"字符。
+     * （10）%F: 输出日志消息产生时所在的文件名称。
+     * （11）%L: 输出代码中的行号。
+     * （12）%m: 输出代码中指定的消息,产生的日志具体信息。
+     * （13）%n: 输出一个回车换行符，Windows平台为"\r\n"，Unix平台为"\n"输出日志信息换行。
+     * 可以在%与模式字符之间加上修饰符来控制其最小宽度、最大宽度、和文本的对齐方式。如：
+     * (1)%20c：指定输出category的名称，最小的宽度是20，如果category的名称小于20的话，默认的情况下右对齐。
+     * (2)%-20c:指定输出category的名称，最小的宽度是20，如果category的名称小于20的话，"-"号指定左对齐。
+     * (3)%.30c:指定输出category的名称，最大的宽度是30，如果category的名称大于30的话，就会将左边多出的字符截掉，但小于30的话也不会有空格。
+     * (4)%20.30c:如果category的名称小于20就补空格，并且右对齐，如果其名称长于30字符，就从左边交远销出的字符截掉。
+     */
+    private static void initConfig() {
+        if (!isInitConfig) {
+
+            LogConfigurator logConfigurator = new LogConfigurator();
+
+            String filename = StorageUtils.getExternalStorageLogDir() + File.separator + "log.txt";
+            logConfigurator.setFileName(filename);                // 日志存储路径，如果该路径没有会自动创建文件
+            logConfigurator.setRootLevel(Level.ALL);
+
+            logConfigurator.setLevel("log", Level.ALL);
+//        logConfigurator.setFilePattern("%d %-5p [%c{2}]-[%L] %m%n");// 设置文件输出模式
+            logConfigurator.setFilePattern("%d %m%n ");// 设置文件输出模式
+//        02-29 16:28:38.195 4629-4658/com.enqualcomm.support E/com.enqualcomm.support.utils.ICLogger:
+            logConfigurator.setMaxBackupSize(2); // 设置最大备份数量
+            logConfigurator.setMaxFileSize(1024 * 1024 * 20);// 设置最大文件大小  20MB
+            logConfigurator.setImmediateFlush(true);// 设置是否立即刷新
+            logConfigurator.setUseFileAppender(true); // 设置用户文件输出器
+            logConfigurator.setInternalDebugging(false); //控制console是否输出
+            logConfigurator.setUseLogCatAppender(true);
+            logConfigurator.setLogCatPattern("%m%n");
+            logConfigurator.configure();// 设置提交
+
+
+//        String logfilelist[]={"Log","GPS","Nmea","APILog","alarmCycle","Battery","LBS"};
+
+            //Log 和log目前是同一个配置
+            Log = getLogger("log");
+            Log.info("init Logger " + Log.getName());
+//        Log.addAppender( getRollingFileAppender("log","%d %m%n "));
+//        Log.info("init Logger "+Log.getName()+" "+((RollingFileAppender)Log.getAppender("log")).getFile());
+
+            isInitConfig = true;
+        }
+    }
+
+    public static void logRAWtoFile(String filename, String msg) {
+        Log.info(msg);
+    }
+
+    public static void logToFile(String filename, String msg) {
+        Log.info(msg);
+    }
+
+    private static RollingFileAppender getRollingFileAppender(String name, String layoutpattern) {
+        PatternLayout fileLayout = new PatternLayout(layoutpattern);
+        String filename = StorageUtils.getExternalStorageLogDir() + File.separator + name + ".txt";
+        RollingFileAppender rollingFileAppender = null;
+        try {
+            rollingFileAppender = new RollingFileAppender(fileLayout, filename);
+        } catch (IOException e) {
+            e.printStackTrace();
+            ICLogger.e(e.getMessage(), e);
+            return null;
+        }
+        rollingFileAppender.setName(name);
+        rollingFileAppender.setMaxBackupIndex(2);  //最多3个备份文件
+        rollingFileAppender.setMaximumFileSize(10 * 1024 * 1024); //10M 大小
+        rollingFileAppender.setImmediateFlush(true);
+
+        return rollingFileAppender;
+    }
+
+    public static void v(String msg) {
+        initConfig();
+        if (Log != null)
+            Log.debug(buildMessage(msg));
+    }
+
+    public static void v(String msg, Throwable thr) {
+        initConfig();
+        if (Log != null)
+            Log.debug(buildMessage(msg), thr);
+    }
+
+    public static void d(String msg) {
+        initConfig();
+        if (Log != null)
+            Log.debug(buildMessage(msg));
+    }
+
+    public static void d(String msg, Throwable thr) {
+        initConfig();
+        if (Log != null)
+            Log.debug(buildMessage(msg), thr);
+    }
+
+    public static void i(String msg) {
+        initConfig();
+        if (Log != null)
+            Log.info(buildMessage(msg));
+    }
+
+    public static void i(String msg, Throwable thr) {
+        initConfig();
+        if (Log != null)
+            Log.info(buildMessage(msg), thr);
+    }
+
+    public static void w(String msg) {
+        initConfig();
+        if (Log != null)
+            Log.warn(buildMessage(msg));
+    }
+
+    public static void w(String msg, Throwable thr) {
+        initConfig();
+        if (Log != null)
+            Log.warn(buildMessage(msg), thr);
+    }
+
+    public static void w(Throwable thr) {
+        initConfig();
+        if (Log != null)
+            Log.warn(buildMessage(""), thr);
+    }
+
+    public static void e(String msg) {
+        initConfig();
+        if (Log != null)
+            Log.error(buildMessage(msg));
+    }
+
+    public static void e(String msg, Throwable thr) {
+        initConfig();
+        if (Log != null)
+            Log.error(buildMessage(msg), thr);
+    }
+
+    public static void PrintExceptionStackTrace(Exception e) {
+
+        StringBuffer sb = new StringBuffer();
+        sb.append(e.getMessage()).append("\n");
+        e.printStackTrace(new PrintStream(new OutputStream() {
+            @Override
+            public void write(int b) throws IOException {
+                sb.append((char) b);
+            }
+        }));
+        i(sb.toString());
+    }
+
+    /**
+     * 生成消息
+     *
+     * @param msg
+     * @return
+     */
+    protected static String buildMessage(String msg) {
+        initConfig();
+        if (DEBUG && msg != null) {
+            String var1 = getFunctionName();
+            if (var1 != null) {
+                StringBuilder sb = new StringBuilder();
+                sb.append(var1);
+                sb.append(" - ");
+                sb.append(msg);
+                return sb.toString();
+            } else {
+                return "functionName is null";
+            }
+        } else {
+            return "msg is null";
+        }
+    }
+
+    public static void log(String TAG, String msg) {
+        if (DEBUG) {
+            if (Log != null) Log.debug(TAG + " " + msg);
+
+        }
+    }
+
+    public static void log(String TAG, String funcName, String msg) {
+        if (DEBUG) {
+            if (Log != null)
+                Log.debug(TAG + " [" + funcName + "]" + msg);
+
+        }
+    }
+
+}
+
diff --git a/app/src/main/java/com/ic/sport/util/IcLog.java b/app/src/main/java/com/ic/sport/util/IcLog.java
index 5ef8933..8c19a2c 100644
--- a/app/src/main/java/com/ic/sport/util/IcLog.java
+++ b/app/src/main/java/com/ic/sport/util/IcLog.java
@@ -15,31 +15,31 @@ public class IcLog {
 
     public static void v(String tag, String msg) {
         if (isDebug) {
-            Log.v(mergeHeadTag(tag), msg);
+            ICLogger.v(msg);
         }
     }
 
     public static void d(String tag, String msg) {
         if (isDebug) {
-            Log.d(mergeHeadTag(tag), msg);
+            ICLogger.d(msg);
         }
     }
 
     public static void i(String tag, String msg) {
         if (isDebug) {
-            Log.i(mergeHeadTag(tag), msg);
+            ICLogger.i(msg);
         }
     }
 
     public static void w(String tag, String msg) {
         if (isDebug) {
-            Log.w(mergeHeadTag(tag), msg);
+            ICLogger.w(msg);
         }
     }
 
     public static void e(String tag, String msg) {
         if (isDebug) {
-            Log.e(mergeHeadTag(tag), msg);
+            ICLogger.e(msg);
         }
     }
 
diff --git a/app/src/main/java/com/ic/sport/util/StorageUtils.java b/app/src/main/java/com/ic/sport/util/StorageUtils.java
new file mode 100644
index 0000000..826b645
--- /dev/null
+++ b/app/src/main/java/com/ic/sport/util/StorageUtils.java
@@ -0,0 +1,182 @@
+/*******************************************************************************
+ * Copyright 2011-2013 Sergey Tarasevich
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *******************************************************************************/
+package com.ic.sport.util;
+
+import android.content.Context;
+import android.content.pm.PackageManager;
+import android.os.Build;
+import android.os.Environment;
+import android.os.StatFs;
+import android.util.Log;
+
+import java.io.File;
+import java.io.IOException;
+
+import static android.os.Environment.DIRECTORY_DOCUMENTS;
+import static android.os.Environment.MEDIA_MOUNTED;
+
+/**
+ * Provides application storage paths
+ *
+ * @author Sergey Tarasevich (nostra13[at]gmail[dot]com)
+ * @since 1.0.0
+ */
+public final class StorageUtils {
+
+    private static final String EXTERNAL_STORAGE_PERMISSION = "android.permission.WRITE_EXTERNAL_STORAGE";
+    private static final String INDIVIDUAL_DIR_NAME = "uil-images";
+    private static final String TAG = "StorageUtils";
+
+    private StorageUtils() {
+    }
+
+    public static String getExternalStorageLogDir() {
+
+
+        //判断版本，如果是4.4的版本则使用旧的API
+        //如果是8.1的版本，使用publish的API
+        if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
+            File dir;
+            Log.d(TAG, "current system version is == > " + Build.VERSION.SDK_INT);
+            if (Build.VERSION.SDK_INT > Build.VERSION_CODES.KITKAT) {
+                dir = new File(Environment.getExternalStoragePublicDirectory(DIRECTORY_DOCUMENTS), "Android/ic/icSport");
+            } else {
+                dir = new File(Environment.getExternalStorageDirectory().getPath(), "Android/ic/icSport");
+            }
+
+            String path = dir.getPath();
+            if (!dir.exists()) {
+                dir.mkdirs();
+            }
+            return path;
+        }
+
+        return "/storage/emulated/0/Android/ic/icSport";
+    }
+
+    /**
+     * Returns application cache directory. Cache directory will be created on SD card
+     * <i>("/Android/data/[app_package_name]/cache")</i> if card is mounted and app has appropriate permission. Else -
+     * Android defines cache directory on device's file system.
+     *
+     * @param context Application context
+     * @return Cache {@link File directory}.<br />
+     * <b>NOTE:</b> Can be null in some unpredictable cases (if SD card is unmounted and
+     * {@link Context#getCacheDir() Context.getCacheDir()} returns null).
+     */
+    public static File getCacheDirectory(Context context) {
+        return getCacheDirectory(context, true);
+    }
+
+    /**
+     * Returns application cache directory. Cache directory will be created on SD card
+     * <i>("/Android/data/[app_package_name]/cache")</i> (if card is mounted and app has appropriate permission) or
+     * on device's file system depending incoming parameters.
+     *
+     * @param context        Application context
+     * @param preferExternal Whether prefer external location for cache
+     * @return Cache {@link File directory}.<br />
+     * <b>NOTE:</b> Can be null in some unpredictable cases (if SD card is unmounted and
+     * {@link Context#getCacheDir() Context.getCacheDir()} returns null).
+     */
+    public static File getCacheDirectory(Context context, boolean preferExternal) {
+        File appCacheDir = null;
+        if (preferExternal && MEDIA_MOUNTED
+                .equals(Environment.getExternalStorageState()) && hasExternalStoragePermission(context) && haveFreeSpace()) {
+            appCacheDir = getExternalCacheDir(context);
+        }
+        if (appCacheDir == null) {
+            appCacheDir = context.getCacheDir();
+        }
+        if (appCacheDir == null) {
+            String cacheDirPath = "/data/data/" + context.getPackageName() + "/cache/";
+            appCacheDir = new File(cacheDirPath);
+        }
+        return appCacheDir;
+    }
+
+    /**
+     * Returns individual application cache directory (for only image caching from ImageLoader). Cache directory will be
+     * created on SD card <i>("/Android/data/[app_package_name]/cache/uil-images")</i> if card is mounted and app has
+     * appropriate permission. Else - Android defines cache directory on device's file system.
+     *
+     * @param context Application context
+     * @return Cache {@link File directory}
+     */
+    public static File getIndividualCacheDirectory(Context context) {
+        File cacheDir = getCacheDirectory(context);
+        File individualCacheDir = new File(cacheDir, INDIVIDUAL_DIR_NAME);
+        if (!individualCacheDir.exists()) {
+            if (!individualCacheDir.mkdir()) {
+                individualCacheDir = cacheDir;
+            }
+        }
+        return individualCacheDir;
+    }
+
+    /**
+     * Returns specified application cache directory. Cache directory will be created on SD card by defined path if card
+     * is mounted and app has appropriate permission. Else - Android defines cache directory on device's file system.
+     *
+     * @param context  Application context
+     * @param cacheDir Cache directory path (e.g.: "AppCacheDir", "AppDir/cache/images")
+     * @return Cache {@link File directory}
+     */
+    public static File getOwnCacheDirectory(Context context, String cacheDir) {
+        File appCacheDir = null;
+        if (MEDIA_MOUNTED.equals(Environment.getExternalStorageState()) && hasExternalStoragePermission(context)) {
+            appCacheDir = new File(Environment.getExternalStorageDirectory(), cacheDir);
+        }
+        if (appCacheDir == null || (!appCacheDir.exists() && !appCacheDir.mkdirs())) {
+            appCacheDir = context.getCacheDir();
+        }
+        return appCacheDir;
+    }
+
+    private static File getExternalCacheDir(Context context) {
+        File dataDir = new File(new File(Environment.getExternalStorageDirectory(), "Android"), "data");
+        File appCacheDir = new File(new File(dataDir, context.getPackageName()), "cache");
+        if (!appCacheDir.exists()) {
+            if (!appCacheDir.mkdirs()) {
+                return null;
+            }
+            try {
+                new File(appCacheDir, ".nomedia").createNewFile();
+            } catch (IOException e) {
+            }
+        }
+        return appCacheDir;
+    }
+
+    private static boolean hasExternalStoragePermission(Context context) {
+        int perm = context.checkCallingOrSelfPermission(EXTERNAL_STORAGE_PERMISSION);
+        return perm == PackageManager.PERMISSION_GRANTED;
+    }
+
+    private static boolean haveFreeSpace() {
+        if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
+            StatFs st = new StatFs(Environment.getExternalStorageDirectory().getPath());
+            int blockSize = st.getBlockSize();
+            long available = st.getAvailableBlocks();
+            long availableSize = (blockSize * available);
+            if (availableSize < 1024 * 1024 * 10) {// //sd卡空间如果小于10M，就认为sd卡空间不足
+                return false;
+            }
+            return true;
+        }
+        return false;
+    }
+}
diff --git a/app/version_code.properties b/app/version_code.properties
index 5873db5..a91ba87 100644
--- a/app/version_code.properties
+++ b/app/version_code.properties
@@ -1,2 +1,2 @@
-#Sun Jun 20 14:45:55 CST 2021
-VERSION_CODE=26
+#Tue Jul 06 15:47:09 CST 2021
+VERSION_CODE=27