MvpBottomSheetDialogFragment added

Author: roman_tcaregorodtcev

moxy-androidx/src/main/java/com/omegar/mvp/MvpBottomSheetDialogFragment.java

@@ -0,0 +1,97 @@
+package com.omegar.mvp;
+
+import android.os.Build;
+import android.os.Bundle;
+
+import androidx.fragment.app.Fragment;
+
+import com.google.android.material.bottomsheet.BottomSheetDialogFragment;
+
+public class MvpBottomSheetDialogFragment extends BottomSheetDialogFragment {
+
+    private boolean mIsStateSaved;
+    private MvpDelegate<? extends MvpBottomSheetDialogFragment> mMvpDelegate;
+
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        getMvpDelegate().onCreate(savedInstanceState);
+    }
+
+    public void onResume() {
+        super.onResume();
+
+        mIsStateSaved = false;
+
+        getMvpDelegate().onAttach();
+    }
+
+    public void onSaveInstanceState(Bundle outState) {
+        super.onSaveInstanceState(outState);
+
+        mIsStateSaved = true;
+
+        getMvpDelegate().onSaveInstanceState(outState);
+        getMvpDelegate().onDetach();
+    }
+
+    @Override
+    public void onStop() {
+        super.onStop();
+
+        getMvpDelegate().onDetach();
+    }
+
+    @Override
+    public void onDestroyView() {
+        super.onDestroyView();
+
+        getMvpDelegate().onDetach();
+        getMvpDelegate().onDestroyView();
+    }
+
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+
+        //We leave the screen and respectively all fragments will be destroyed
+        if (getActivity().isFinishing()) {
+            getMvpDelegate().onDestroy();
+            return;
+        }
+
+        // When we rotate device isRemoving() return true for fragment placed in backstack
+        // http://stackoverflow.com/questions/34649126/fragment-back-stack-and-isremoving
+        if (mIsStateSaved) {
+            mIsStateSaved = false;
+            return;
+        }
+
+        // See https://github.com/Arello-Mobile/Moxy/issues/24
+        boolean anyParentIsRemoving = false;
+
+        if (Build.VERSION.SDK_INT >= 17) {
+            Fragment parent = getParentFragment();
+            while (!anyParentIsRemoving && parent != null) {
+                anyParentIsRemoving = parent.isRemoving();
+                parent = parent.getParentFragment();
+            }
+        }
+
+        if (isRemoving() || anyParentIsRemoving) {
+            getMvpDelegate().onDestroy();
+        }
+    }
+
+    /**
+     * @return The {@link MvpDelegate} being used by this Fragment.
+     */
+    public MvpDelegate getMvpDelegate() {
+        if (mMvpDelegate == null) {
+            mMvpDelegate = new MvpDelegate<>(this);
+        }
+
+        return mMvpDelegate;
+    }
+
+}