update:2020.04.22

fix:
add:

RecyclerBanner/build.gradle

@@ -0,0 +1,25 @@
+apply plugin: 'com.android.library'
+
+android {
+    compileSdkVersion 27
+    defaultConfig {
+        minSdkVersion 15
+        targetSdkVersion 26
+        versionCode 1
+        versionName "1.0"
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled true
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+
+}
+
+dependencies {
+    implementation 'androidx.appcompat:appcompat:1.1.0'
+    implementation 'androidx.recyclerview:recyclerview:1.1.0'
+
+}