1) Updated to support android studio 3.4

2) Updated to support Android Gradle Plugin 3.4.0

3) Updated to support Gradle version 5.1.1

app/src/main/res/layout/bottom_sheet_layout.xml

app/src/main/res/layout/item_upload_photo.xml

app/src/main/res/layout/item_wallpaper_list_adapter.xml

app/build.gradle

build.gradle

app/src/main/java/com/panaceasoft/pswallpaper/Config.java

gradle/wrapper/gradle-wrapper.properties