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Unwrap Context in order to retrieve Activity subclass #59

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merged 1 commit into from
Jan 15, 2019
Merged

Unwrap Context in order to retrieve Activity subclass #59

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7 changes: 6 additions & 1 deletion android/src/main/java/com/swmansion/rnscreens/ScreenContainer.java
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Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,7 @@

import android.app.Activity;
import android.content.Context;
import android.content.ContextWrapper;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
Expand Down Expand Up @@ -93,8 +94,12 @@ private FragmentActivity findRootFragmentActivity() {
if (!(parent instanceof ReactRootView)) {
throw new IllegalStateException("ScreenContainer is not attached under ReactRootView");
}
// ReactRootView is expected to be initialized with the main React Activity as a context
// ReactRootView is expected to be initialized with the main React Activity as a context but
// in case of Expo the activity is wrapped in ContextWrapper and we need to unwrap it
Context context = ((ReactRootView) parent).getContext();
while (!(context instanceof FragmentActivity) && context instanceof ContextWrapper) {
context = ((ContextWrapper) context).getBaseContext();
}
if (!(context instanceof FragmentActivity)) {
throw new IllegalStateException(
"In order to use RNScreens components your app's activity need to extend ReactFragmentActivity or ReactCompatActivity");
Expand Down