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fix ios restart crash #59

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fix ios restart crash #59

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31 changes: 12 additions & 19 deletions ios/RNScreenshotPrevent.m
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Original file line number Diff line number Diff line change
Expand Up @@ -156,22 +156,19 @@ -(void) addSecureTextFieldToView:(UIView *) view :(NSString *) imagePath {
secureField.backgroundColor = [UIColor colorWithPatternImage:resultImage];
}

UIWindow *window = [UIApplication sharedApplication].keyWindow;
[view sendSubviewToBack:secureField];
[view addSubview:secureField];
[view.layer.superlayer addSublayer:secureField.layer];
[[secureField.layer.sublayers lastObject] addSublayer:view.layer];
}

// TODO: not working now, fix crash on _UITextFieldCanvasView contenttViewInvalidated: unrecognized selector sent to instance
-(void) removeSecureTextFieldFromView:(UIView *) view {
for(UITextField *subview in view.subviews){
if([subview isMemberOfClass:[UITextField class]]) {
if(subview.secureTextEntry == TRUE) {
[subview removeFromSuperview];
subview.secureTextEntry = FALSE;
secureField.userInteractionEnabled = TRUE;
}
}
[window.layer.superlayer addSublayer:secureField.layer];
[[secureField.layer.sublayers lastObject] addSublayer:window.layer];
}

-(void) removeSecureTextFieldFromView {
if (secureField != nil) {
[secureField setSecureTextEntry:NO];
CALayer *textFieldLayer = secureField.layer.sublayers.lastObject;
[textFieldLayer removeFromSuperlayer];
secureField = nil;
}
}

Expand All @@ -195,11 +192,7 @@ -(void) removeSecureTextFieldFromView:(UIView *) view {
/** removes secure textfield from the view */
RCT_EXPORT_METHOD(disableSecureView) {
[self enabled:NO];
secureField.secureTextEntry = false;
UIView *view = [UIApplication sharedApplication].keyWindow.rootViewController.view;
for(UIView *subview in view.subviews) {
[self removeSecureTextFieldFromView:subview];
}
[self removeSecureTextFieldFromView];
}


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