ios - 将 bool 值从 0 传递到 1 后没有任何反应

Question

我正在将 BOOL 值从 GameViewController 传递到 ChooseLevelViewController。如果 BOOL = 0 则应显示 ChooseLevel 中 Button1Pressed 的正常图像。如果 BOOL = 1 我想要其他图像。

我的代码:

ChooseLevel.h

@property (nonatomic) BOOL isSomethingEnabled;

ChooseLevel.m

if (_isSomethingEnabled) {


[_button1Pressed setImage:[UIImage imageNamed:@"buttonChanged.png"] forState:UIControlStateNormal];
}

GameView.m

#import "ChooseLevelViewController.h"

...

 ChooseLevelViewController *govc = [self.storyboard instantiateViewControllerWithIdentifier:@"chooseLevelViewController"];

        govc.isSomethingEnabled = 1;
        [self.finishAudio play];

        [self presentViewController:govc animated:NO completion:^(){
            [self.gameModel clearGameData];

        }];

我正在使用NSLog进行测试，通过之前的boolValue为0，通过后为1，工作正常。但是我的 ButtonIcon 没有改变

Answer 1

请定义一个改变按钮图片的方法-

ChooseLevelViewController.h

-(void)loadButtonView;

加载按钮 View 定义

选择LevelViewController.m

-(void)loadButtonView
{
    [_button1Pressed setImage:[UIImage imageNamed: _isSomethingEnabled?@"buttonChanged.png":@"Button1Pressed.png"] forState:UIControlStateNormal];
}


ChooseLevelViewController *govc = [self.storyboard instantiateViewControllerWithIdentifier:@"chooseLevelViewController"];

        govc.isSomethingEnabled = 1;
       // Call below method for button image change
        [govc loadButtonView];

        [self.finishAudio play];

        [self presentViewController:govc animated:NO completion:^(){
            [self.gameModel clearGameData];

        }];

希望这对您的问题有所帮助。