ユーザーが画面をスワイプして投稿間を閲覧できるシーンを作成しようとしています。投稿は、テキスト付きの画像または単なるメモの両方にすることができ、どちらが発生するかによってビューが変更されます。
取得プロセスは完璧に機能します。右にスワイプしても左にスワイプしても、右の投稿が表示されます。問題は、古いビューが消えず、ビューが重なっていることです。サイズが異なるため、メモから写真に、またはその逆に移動する場合、これは特に厄介です...
コードは次のとおりです。
- (void)viewDidLoad
{
[super viewDidLoad];
NSLog(@" GETRESULT %@ POSTNUMBER %d", getResult, postNumber);
Post *postInfo = [[Post alloc] init];
postInfo = [getResult objectAtIndex:postNumber];
UITextView *postText = [[UITextView alloc] init];
imgView = [[UIImageView alloc] init];
NSString *getImageString = postInfo.attachments;
if(getImageString){
postText = [[UITextView alloc] init];
postText.text = postInfo.noteText;
[postText setFrame:CGRectMake(20, 320, 280, 80)];
NSLog(@"IMG1");
}else {
postText = [[UITextView alloc] init];
postText.text = postInfo.noteText;
[postText setFrame:CGRectMake(20, 10, 280, 240)];
NSLog(@"TEXT1");
}
[self.view addSubview:postText];
SHOWHUD(self.view);
dispatch_async(dispatch_get_global_queue( DISPATCH_QUEUE_PRIORITY_LOW, 0), ^{
NSURL *url = [NSURL URLWithString:getImageString];
NSData *data = [NSData dataWithContentsOfURL:url];
UIImage *img = [[UIImage alloc] initWithData:data];
[imgView setFrame:CGRectMake(20, 10, 280, 300)];
[imgView setContentMode:UIViewContentModeScaleAspectFit];
[imgView setImage:img];
dispatch_async(dispatch_get_main_queue(), ^{
[self.view addSubview:imgView];
HIDEHUD(self.view);
});
});
UISwipeGestureRecognizer *recognizerRight = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipeRight:)];
[[self view] addGestureRecognizer:recognizerRight];
UISwipeGestureRecognizer *recognizerLeft = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipeLeft:)];
[recognizerLeft setDirection:UISwipeGestureRecognizerDirectionLeft];
[[self view] addGestureRecognizer:recognizerLeft];
// Do any additional setup after loading the view.
}
- (void)handleSwipeRight:(UISwipeGestureRecognizer *)gestureRecognizer{
NSLog(@"SWIPE RIGHT");
if(postNumber > 0){
postNumber--;
Post *postInfo = [[Post alloc] init];
postInfo = [getResult objectAtIndex:postNumber];
UITextView *postText = [[UITextView alloc] init];
imgView = [[UIImageView alloc] init];
NSString *getImageString = postInfo.attachments;
if(getImageString){
[postText removeFromSuperview];
postText = [[UITextView alloc] init];
postText.text = postInfo.noteText;
[postText setFrame:CGRectMake(20, 320, 280, 80)];
NSLog(@"IMG1");
}else {
[postText removeFromSuperview];
postText = [[UITextView alloc] init];
postText.text = postInfo.noteText;
[postText setFrame:CGRectMake(20, 10, 280, 240)];
NSLog(@"TEXT1");
}
[self.view addSubview:postText];
SHOWHUD(self.view);
dispatch_async(dispatch_get_global_queue( DISPATCH_QUEUE_PRIORITY_LOW, 0), ^{
if (getImageString) {
NSURL *url = [NSURL URLWithString:getImageString];
NSData *data = [NSData dataWithContentsOfURL:url];
UIImage *img = [[UIImage alloc] initWithData:data];
[imgView setFrame:CGRectMake(20, 10, 280, 300)];
[imgView setContentMode:UIViewContentModeScaleAspectFit];
[imgView setImage:img];
}else {
[imgView removeFromSuperview];
}
dispatch_async(dispatch_get_main_queue(), ^{
[self.view addSubview:imgView];
HIDEHUD(self.view);
});
});
}
}
- (void)handleSwipeLeft:(UISwipeGestureRecognizer *)gestureRecognizer{
NSLog(@"SWIPE LEFT");
if(postNumber < [getResult count] - 1){
postNumber++;
Post *postInfo = [[Post alloc] init];
postInfo = [getResult objectAtIndex:postNumber];
UITextView *postText = [[UITextView alloc] init];
imgView = [[UIImageView alloc] init];
NSString *getImageString = postInfo.attachments;
if(getImageString){
[postText removeFromSuperview];
postText = [[UITextView alloc] init];
postText.text = postInfo.noteText;
[postText setFrame:CGRectMake(20, 320, 280, 80)];
NSLog(@"IMG1");
}else {
[postText removeFromSuperview];
postText = [[UITextView alloc] init];
postText.text = postInfo.noteText;
[postText setFrame:CGRectMake(20, 10, 280, 240)];
NSLog(@"TEXT1");
}
[self.view addSubview:postText];
SHOWHUD(self.view);
dispatch_async(dispatch_get_global_queue( DISPATCH_QUEUE_PRIORITY_LOW, 0), ^{
if(getImageString){
NSURL *url = [NSURL URLWithString:getImageString];
NSData *data = [NSData dataWithContentsOfURL:url];
UIImage *img = [[UIImage alloc] initWithData:data];
[imgView setFrame:CGRectMake(20, 10, 280, 300)];
[imgView setContentMode:UIViewContentModeScaleAspectFit];
[imgView setImage:img];
}else {
[imgView removeFromSuperview];
}
dispatch_async(dispatch_get_main_queue(), ^{
[self.view addSubview:imgView];
HIDEHUD(self.view);
});
});
}
}
最初はpostNumberを増やし、スワイプアクションでviewDidLoadを呼び出しました。それでもまったく同じ結果が得られました...これは試行錯誤の数え切れないほどの試みの1つに過ぎず、ごめんなさい、これは厄介なものの1つです...
誰かが解決策を手に入れたら、それを大いに感謝します。
よろしくお願いします、トム