update

Author: XuXiangJun

app/build.gradle

@@ -5,10 +5,10 @@ android {
 
     defaultConfig {
         applicationId "com.espressif.espblufi"
-        minSdkVersion 18
+        minSdkVersion 21
         targetSdkVersion 29
-        versionCode 20
-        versionName "1.4.3"
+        versionCode 21
+        versionName "1.5.0"
     }
     buildTypes {
         release {
@@ -30,10 +30,8 @@ dependencies {
     implementation 'androidx.gridlayout:gridlayout:1.0.0'
     implementation 'androidx.preference:preference:1.1.0'
 
-    implementation 'io.reactivex.rxjava2:rxjava:2.2.12'
+    implementation 'io.reactivex.rxjava2:rxjava:2.2.14'
     implementation 'io.reactivex.rxjava2:rxandroid:2.1.1'
 
-    implementation 'xxj.phiman:xxjtools:1.0.1'
-
     implementation project(':blufilibrary')
 }

app/src/main/AndroidManifest.xml

@@ -10,9 +10,14 @@
     <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
     <uses-permission android:name="android.permission.INTERNET" />
 
+    <uses-feature
+        android:name="android.hardware.bluetooth_le"
+        android:required="true" />
+
     <application
         android:name=".app.BlufiApp"
         android:allowBackup="true"
+        android:fullBackupContent="@xml/backup_descriptor"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
         android:supportsRtl="true"
@@ -35,8 +40,8 @@
             android:theme="@style/AppTheme.NoActionBar" />
         <activity
             android:name=".ui.ConfigureOptionsActivity"
-            android:screenOrientation="portrait"
             android:label="@string/configure_title"
+            android:screenOrientation="portrait"
             android:theme="@style/AppTheme.NoActionBar" />
         <activity
             android:name=".ui.SettingsActivity"

app/src/main/java/com/espressif/espblufi/app/BlufiApp.java

@@ -6,15 +6,12 @@
 
 import com.espressif.espblufi.constants.SettingsConstants;
 
-import java.util.HashMap;
 import java.util.HashSet;
 import java.util.Set;
 
 public class BlufiApp extends Application {
     private static BlufiApp instance;
 
-    private final HashMap<String, Object> mCache = new HashMap<>();
-
     private SharedPreferences mSettingsShared;
 
     public static BlufiApp getInstance() {
@@ -35,11 +32,9 @@ public void onCreate() {
     @Override
     public void onTerminate() {
         super.onTerminate();
-
-        mCache.clear();
     }
 
-    public boolean settingsPut(String key, Object value) {
+    public void settingsPut(String key, Object value) {
         SharedPreferences.Editor editor = mSettingsShared.edit();
         if (value instanceof String) {
             editor.putString(key, (String) value);
@@ -59,11 +54,10 @@ public boolean settingsPut(String key, Object value) {
             }
             editor.putStringSet(key, newSet);
         } else {
-            return false;
+            throw new IllegalArgumentException("Unsupported value type");
         }
 
         editor.apply();
-        return true;
     }
 
     public Object settingsGet(String key, Object defaultValue) {

app/src/main/java/com/espressif/espblufi/app/BlufiLog.java

@@ -0,0 +1,90 @@
+package com.espressif.espblufi.app;
+
+import android.util.Log;
+
+public class BlufiLog {
+    private final String mTag;
+    private Level mLevel = Level.V;
+
+    /**
+     * @param cls The tag will use simple name of the cls.
+     */
+    public BlufiLog(Class cls) {
+        mTag = String.format("[%s]", cls.getSimpleName());
+    }
+
+    /**
+     * Set the print lowest level. It will set {@link Level#NIL} if the level is null.
+     *
+     * @param level The lowest level can print log.
+     */
+    public void setLevel(Level level) {
+        if (level == null) {
+            mLevel = Level.NIL;
+        } else {
+            mLevel = level;
+        }
+    }
+
+    /**
+     * Send a {@link Level#V} log message.
+     *
+     * @param msg The message you would like logged.
+     */
+    public void v(String msg) {
+        if (mLevel.ordinal() <= Level.V.ordinal()) {
+            Log.v(mTag, msg);
+        }
+    }
+
+    /**
+     * Send a {@link Level#V} log message.
+     *
+     * @param msg The message you would like logged.
+     */
+    public void d(String msg) {
+        if (mLevel.ordinal() <= Level.D.ordinal()) {
+            Log.d(mTag, msg);
+        }
+    }
+
+    /**
+     * Send a {@link Level#I} log message.
+     *
+     * @param msg The message you would like logged.
+     */
+    public void i(String msg) {
+        if (mLevel.ordinal() <= Level.I.ordinal()) {
+            Log.i(mTag, msg);
+        }
+    }
+
+    /**
+     * Send a {@link Level#W} log message.
+     *
+     * @param msg The message you would like logged.
+     */
+    public void w(String msg) {
+        if (mLevel.ordinal() <= Level.W.ordinal()) {
+            Log.w(mTag, msg);
+        }
+    }
+
+    /**
+     * Send a {@link Level#E} log message.
+     *
+     * @param msg The message you would like logged.
+     */
+    public void e(String msg) {
+        if (mLevel.ordinal() <= Level.E.ordinal()) {
+            Log.e(mTag, msg);
+        }
+    }
+
+    /**
+     * The level allow logged
+     */
+    public enum Level {
+        V, D, I, W, E, NIL
+    }
+}

app/src/main/java/com/espressif/espblufi/constants/BlufiConstants.java

@@ -17,4 +17,5 @@ public final class BlufiConstants {
 
     public static final int DEFAULT_MTU_LENGTH = 128;
     public static final int MIN_MTU_LENGTH = 15;
+    public static final int MAX_MTU_LENGTH = 512;
 }