iphone - pdf列表的封面流动效果

Question

我想知道我们如何为 pdf 列表实现封面流动效果，双击时，它应该打开相应的 pdf。我真的很震惊，请帮帮我

提前致谢

Answer 1

在 openFlowView.m 文件中搜索这个方法

- (void)awakeFromNib {
    [self setUpInitialState];
}
Now when you find this replace this method by below or add lines of tapGestureRecognizer.

- (void)awakeFromNib {
    [self setUpInitialState];
    UITapGestureRecognizer *tapRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(screenTapped:)];   
    [tapRecognizer setNumberOfTapsRequired:2];
    [self addGestureRecognizer:tapRecognizer];
    [tapRecognizer release];    

}
screenTapped is my method that gets called when I tap twice on cover flow.

- (void)screenTapped:(UITapGestureRecognizer *)tap {
    NSLog(@"Screen tapped");
//put your points of your coverflow coordinates
    if(coverPointimage.x > 0 && coverPointimage.x <= 265 && coverPointimage.y >0 && coverPointimage.y <= 205){
        [self imageClicked];//either write code or made seperate method that should gets called when you do double tap.
    }


}

希望这段代码能节省你几个小时。快乐的编码。

Answer 2

您应该尝试使用 Tapku 库来获得覆盖流效果。它非常简单且可定制。你可以在这里找到它。