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108 行
3.6 KiB
108 行
3.6 KiB
#include "UIWidgetsViewController.h"
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#include "UIWidgetsMessageManager.h"
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#include <Foundation/Foundation.h>
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#include <UIKit/UIKit.h>
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@implementation UIWidgetsViewController {
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}
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@synthesize viewInsets;
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@synthesize padding;
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- (instancetype)init {
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self = [super init];
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if (self) {
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viewInsets.bottom = 0;
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viewInsets.top = 0;
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viewInsets.left = 0;
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viewInsets.right = 0;
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CGFloat scale = [[UIScreen mainScreen] scale];
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if (@available(iOS 11, *)) {
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padding.bottom = [UIApplication sharedApplication].keyWindow.safeAreaInsets.bottom * scale;
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padding.top = [UIApplication sharedApplication].keyWindow.safeAreaInsets.top * scale;
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padding.left = [UIApplication sharedApplication].keyWindow.safeAreaInsets.left * scale;
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padding.right = [UIApplication sharedApplication].keyWindow.safeAreaInsets.right * scale;
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} else {
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CGRect statusFrame = [UIApplication sharedApplication].statusBarFrame;
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padding.bottom = 0;
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padding.top = statusFrame.size.height * scale;
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padding.left = 0;
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padding.right = 0;
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}
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NSNotificationCenter* center = [NSNotificationCenter defaultCenter];
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[center addObserver:self
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selector:@selector(keyboardWillChangeFrame:)
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name:UIKeyboardWillChangeFrameNotification
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object:nil];
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[center addObserver:self
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selector:@selector(keyboardWillBeHidden:)
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name:UIKeyboardWillHideNotification
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object:nil];
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}
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return self;
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}
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-(void)keyboardWillBeHidden:(NSNotification*)notification {
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viewInsets.bottom = 0;
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CGFloat scale = [UIScreen mainScreen].scale;
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if (@available(iOS 11, *)) {
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CGFloat cur_padding = [UIApplication sharedApplication].keyWindow.safeAreaInsets.bottom * scale;
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padding.bottom = cur_padding;
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} else {
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CGRect statusFrame = [UIApplication sharedApplication].statusBarFrame;
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CGFloat cur_padding = statusFrame.size.height * scale;
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padding.top = cur_padding;
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}
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UIWidgetsMethodMessage(@"ViewportMatricsChanged", @"UIWidgetViewController.keyboardChanged", @[]);
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}
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-(void)keyboardWillChangeFrame:(NSNotification*)notification {
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NSDictionary* info = [notification userInfo];
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CGFloat bottom = CGRectGetHeight([[info objectForKey:UIKeyboardFrameEndUserInfoKey] CGRectValue]);
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CGFloat scale = [UIScreen mainScreen].scale;
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viewInsets.bottom = bottom * scale;
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padding.bottom = 0;
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UIWidgetsMethodMessage(@"ViewportMatricsChanged", @"UIWidgetViewController.keyboardChanged", @[]);
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}
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-(void)tryLaunch {
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}
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+ (instancetype)sharedInstance {
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static UIWidgetsViewController *sharedInstance = nil;
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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sharedInstance = [[UIWidgetsViewController alloc] init];
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});
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return sharedInstance;
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}
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@end
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extern "C"
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{
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viewMetrics IOSGetViewportPadding()
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{
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viewMetrics metrics;
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viewPadding insets = [[UIWidgetsViewController sharedInstance] viewInsets];
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viewPadding padding = [[UIWidgetsViewController sharedInstance] padding];
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metrics.insets_bottom = insets.bottom;
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metrics.insets_top = insets.top;
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metrics.insets_left = insets.left;
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metrics.insets_right = insets.right;
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metrics.padding_bottom = padding.bottom;
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metrics.padding_top = padding.top;
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metrics.padding_left = padding.left;
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metrics.padding_right = padding.right;
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return metrics;
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}
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}
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