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/**
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
*/
#import "FlexibleSizeExampleView.h"
#import <React/RCTBridge.h>
#import <React/RCTRootView.h>
#import <React/RCTRootViewDelegate.h>
#import <React/RCTViewManager.h>
#import "AppDelegate.h"
@interface FlexibleSizeExampleViewManager : RCTViewManager
@end
@implementation FlexibleSizeExampleViewManager
RCT_EXPORT_MODULE();
- (UIView *)view
{
return [FlexibleSizeExampleView new];
}
@end
@interface FlexibleSizeExampleView () <RCTRootViewDelegate>
@end
@implementation FlexibleSizeExampleView
{
RCTRootView *_resizableRootView;
UITextView *_currentSizeTextView;
BOOL _sizeUpdated;
}
- (instancetype)initWithFrame:(CGRect)frame
{
if ((self = [super initWithFrame:frame])) {
_sizeUpdated = NO;
AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];
_resizableRootView = [[RCTRootView alloc] initWithBridge:appDelegate.bridge
moduleName:@"RootViewSizeFlexibilityExampleApp"
initialProperties:@{}];
[_resizableRootView setSizeFlexibility:RCTRootViewSizeFlexibilityHeight];
_currentSizeTextView = [UITextView new];
#ifndef TARGET_OS_TV
_currentSizeTextView.editable = NO;
#endif
_currentSizeTextView.text = @"Resizable view has not been resized yet";
_currentSizeTextView.textColor = [UIColor blackColor];
_currentSizeTextView.backgroundColor = [UIColor whiteColor];
_currentSizeTextView.font = [UIFont boldSystemFontOfSize:10];
_resizableRootView.delegate = self;
[self addSubview:_currentSizeTextView];
[self addSubview:_resizableRootView];
}
return self;
}
- (void)layoutSubviews
{
float textViewHeight = 60;
float spacingHeight = 10;
[_resizableRootView setFrame:CGRectMake(0, textViewHeight + spacingHeight, self.frame.size.width, _resizableRootView.frame.size.height)];
[_currentSizeTextView setFrame:CGRectMake(0, 0, self.frame.size.width, textViewHeight)];
}
- (NSArray<UIView<RCTComponent> *> *)reactSubviews
{
// this is to avoid unregistering our RCTRootView when the component is removed from RN hierarchy
(void)[super reactSubviews];
return @[];
}
#pragma mark - RCTRootViewDelegate
- (void)rootViewDidChangeIntrinsicSize:(RCTRootView *)rootView
{
CGRect newFrame = rootView.frame;
newFrame.size = rootView.intrinsicContentSize;
if (!_sizeUpdated) {
_sizeUpdated = TRUE;
_currentSizeTextView.text = [NSString stringWithFormat:@"RCTRootViewDelegate: content with initially unknown size has appeared, updating root view's size so the content fits."];
} else {
_currentSizeTextView.text = [NSString stringWithFormat:@"RCTRootViewDelegate: content size has been changed to (%ld, %ld), updating root view's size.",
(long)newFrame.size.width,
(long)newFrame.size.height];
}
rootView.frame = newFrame;
}
@end