java.lang.ClassCastException: android.view.ContextThemeWrapper cannot be cast to android.app.Activity

[lucas-ferreira-machado]

I received this error in my project:

2019-07-17 16:45:52.667 14358-14358/com.app E/AndroidRuntime: FATAL EXCEPTION: main Process: com.app, PID: 14358 java.lang.RuntimeException: Unable to start activity ComponentInfo{com.app/com.app.MainActivity}: android.view.InflateException: Binary XML file line #52: Binary XML file line #52: Error inflating class com.evolve.backdroplibrary.BackdropContainer at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3121) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3260) at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78) at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108) at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1976) at android.os.Handler.dispatchMessage(Handler.java:106) at android.os.Looper.loop(Looper.java:193) at android.app.ActivityThread.main(ActivityThread.java:6912) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:860) Caused by: android.view.InflateException: Binary XML file line #52: Binary XML file line #52: Error inflating class com.evolve.backdroplibrary.BackdropContainer Caused by: android.view.InflateException: Binary XML file line #52: Error inflating class com.evolve.backdroplibrary.BackdropContainer Caused by: java.lang.reflect.InvocationTargetException at java.lang.reflect.Constructor.newInstance0(Native Method) at java.lang.reflect.Constructor.newInstance(Constructor.java:343) at android.view.LayoutInflater.createView(LayoutInflater.java:647) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:790) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:730) at android.view.LayoutInflater.rInflate(LayoutInflater.java:863) at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:824) at android.view.LayoutInflater.rInflate(LayoutInflater.java:866) at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:824) at android.view.LayoutInflater.inflate(LayoutInflater.java:515) at android.view.LayoutInflater.inflate(LayoutInflater.java:423) at android.view.LayoutInflater.inflate(LayoutInflater.java:374) at androidx.appcompat.app.AppCompatDelegateImpl.setContentView(AppCompatDelegateImpl.java:469) at androidx.appcompat.app.AppCompatActivity.setContentView(AppCompatActivity.java:140) at com.app.MainActivity.onCreate(MainActivity.kt:42) at android.app.Activity.performCreate(Activity.java:7144) at android.app.Activity.performCreate(Activity.java:7135) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1293) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3101) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3260) at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78) at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108) at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1976) at android.os.Handler.dispatchMessage(Handler.java:106) at android.os.Looper.loop(Looper.java:193) at android.app.ActivityThread.main(ActivityThread.java:6912) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:860) Caused by: java.lang.ClassCastException: android.view.ContextThemeWrapper cannot be cast to android.app.Activity at com.evolve.backdroplibrary.BackdropContainer.(BackdropContainer.java:45) at java.lang.reflect.Constructor.newInstance0(Native Method)  at java.lang.reflect.Constructor.newInstance(Constructor.java:343)  at android.view.LayoutInflater.createView(LayoutInflater.java:647)  at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:790)  at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:730)  at android.view.LayoutInflater.rInflate(LayoutInflater.java:863)  at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:824)  at android.view.LayoutInflater.rInflate(LayoutInflater.java:866)  at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:824)  at android.view.LayoutInflater.inflate(LayoutInflater.java:515)  at android.view.LayoutInflater.inflate(LayoutInflater.java:423)  at android.view.LayoutInflater.inflate(LayoutInflater.java:374)  at androidx.appcompat.app.AppCompatDelegateImpl.setContentView(AppCompatDelegateImpl.java:469)  at androidx.appcompat.app.AppCompatActivity.setContentView(AppCompatActivity.java:140)  at com.app.MainActivity.onCreate(MainActivity.kt:42)  at android.app.Activity.performCreate(Activity.java:7144)  at android.app.Activity.performCreate(Activity.java:7135)  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1293)  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3101)  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3260)  at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78)  at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108)  at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68)  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1976)  at android.os.Handler.dispatchMessage(Handler.java:106)  at android.os.Looper.loop(Looper.java:193)  at android.app.ActivityThread.main(ActivityThread.java:6912)  at java.lang.reflect.Method.invoke(Native Method)  at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:860) 

My configuration project:

compileSdkVersion 29 defaultConfig { applicationId "com.app" minSdkVersion 21 targetSdkVersion 29 versionCode 1 versionName "1.0" testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner" }

implementation 'com.github.kishan2612:Material-Backdrop-Android:v1.1.0'