ktyr report

[objective-c]NSStringでクラス名を指定する

2013-09-27

NSStringでクラス名を指定する

Class targetClass=NSClassFromString(@"SettingViewController");
UIViewController*currentCV=[[targetClass alloc]init];

[iOS6]Safariでinput type=”file” #2

App Develop

2013-04-25

iOS6のSafariからformのinput type=”file”に対応しているので試しました。#2
Safariでinput type=”file” #1と違うところは写真だけ選ばせる点
Sample

formを作ると左のように表示される。

写真[ファイルを選択]をタップしたところ

写真を選択したところ

動画[ファイルを選択]をタップしたところ

動画を選択したところ

[送信]をタップして遷移したところ

index.html

<!DOCTYPE html>
<html lang="ja">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<meta http-equiv="Content-Script-Type" content="text/javascript">
<meta http-equiv="Content-Style-Type" content="text/css">
<title>sample00</title>
<meta name="description" content="****">
<meta name="keywords" content="****">
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
<meta name="format-detection" content="telephone=no,address=no,email=no">
<link rel="apple-touch-icon" href="apple-touch-icon.png">
<link rel="stylesheet" href="style.css" type="text/css">
</head>
<body>
<form method="post" action="upload.php" enctype="multipart/form-data">
	<label>写真</label><input type="file" name="selectedPhoto" accept="image/*">
	<br/>
	<br/>
	<label>動画</label><input type="file" name="selectedMovie" accept="video/*">
	<br/>
	<br/>
	<input type="submit"/>
</form>
</body>
</html>

upload.php

<!DOCTYPE html>
<html lang="ja">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<meta http-equiv="Content-Script-Type" content="text/javascript">
<meta http-equiv="Content-Style-Type" content="text/css">
<title>sample00</title>
<meta name="description" content="****">
<meta name="keywords" content="****">
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
<meta name="format-detection" content="telephone=no,address=no,email=no">
<link rel="apple-touch-icon" href="apple-touch-icon.png">
<link rel="stylesheet" href="style.css" type="text/css">
</head>
<body>
<?php
if(isset($_FILES["selectedPhoto"])){
	if($_FILES["selectedPhoto"]["error"]==0) {
		$ext=end(explode('.', $_FILES["selectedPhoto"]["name"]));
		$filename='./test.'.$ext;
		$result = @move_uploaded_file( $_FILES["selectedPhoto"]["tmp_name"], $filename);
		if($result){
			echo '<img src="'.$filename.'" width="300"/><br/>';
		}else{
			echo 'エラー<br/>';
		}
	}elseif ($_FILES["selectedPhoto"]["error"]==1) {
		echo 'ファイルサイズが大きすぎます。';
	}
	foreach($_FILES["selectedPhoto"] as $key => $v){
		echo $key.' : '.$v.'<br/>';
	}
}
?>
<br/><hr><br/>
<?php
if(isset($_FILES["selectedMovie"])){
	if ($_FILES["selectedMovie"]["error"]==0) {
		$ext=end(explode('.', $_FILES["selectedMovie"]["name"]));
		$filename='./test.'.$ext;
		$result = @move_uploaded_file( $_FILES["selectedMovie"]["tmp_name"], $filename);
		if($result){
			echo '<video src="'.$filename.'"></video> ';
		}else{
			echo 'エラー<br/>';
		}
	}elseif ($_FILES["selectedMovie"]["error"]==1) {
		echo 'ファイルサイズが大きすぎます。';
	}
	foreach($_FILES["selectedMovie"] as $key => $v){
		echo $key.' : '.$v.'<br/>';
	}
}
?>
</body>
</html>

[objective-c]UIButtonをドラッグする

2013-03-28

UIButtonをドラッグする

UIButton*btn=[UIButton buttonWithType:UIButtonTypeRoundedRect];
[btn addTarget:self action:@selector(onTouchDragInside:withEvent:) forControlEvents:UIControlEventTouchDragInside];
[self.view addSubview:btn];

-(void)onTouchDragInside:(UIButton*)btn withEvent:(UIEvent*)event{
    UITouch *touch=[[event touchesForView:btn] anyObject];
    CGPoint prevPos=[touch previousLocationInView:btn];
    CGPoint pos=[touch locationInView:btn];
    float dX=pos.x-prevPos.x;
    float dY=pos.y-prevPos.y;
    btn.center=CGPointMake(btn.center.x+dX,btn.center.y+dY);
}

[objective-c]ドロップシャドウを付ける

2013-03-27

ドロップシャドウを付ける

#import <QuartzCore/QuartzCore.h>

UIImageView*iv=[[UIImageView alloc]initWithImage:[UIImage imageNamed:@"test.png"]];
iv.layer.shadowOpacity=0.4;
iv.layer.shadowOffset=CGSizeMake(2.0, 2.0);
[self.view addSubview:iv];
//iv.clipsToBounds=YES; これがあるとドロップシャドウが出ない

[objective-c]UIImageの作り方

2013-03-26

UIImageの作り方

NSString*fn=@"image.png";
UIImage*image1=[UIImage imageNamed:fn];
UIImage*image2=[UIImage imageWithContentsOfFile:[NSString stringWithFormat:@"%@/%@",[[NSBundle mainBundle] bundlePath],fn]];

NSURL*url=[NSURL URLWithString:@"http://yourdomain/image.png"];
NSData*data=[NSData dataWithContentsOfURL:url];
UIImage*image3=[UIImage imageWithData:data];

参考サイト
UIImage Class Reference
http://developer.apple.com/library/ios/#documentation/uikit/reference/UIImage_Class/Reference/Reference.html

[objective-c]animateWithDuration

2013-02-22

beginAnimationsはiOS4以降非推奨なので、
より便利なanimateWithDurationを使いましょう。

[UIView animateWithDuration:0.3
    animations:^{
        //アニメーション内容
        targetView.frame=CGRectMake(0, 0, 100, 100);
    }
    completion:^(BOOL finished){
        //アニメーションが終わったとき
        [targetView removeFromSuperview];
        [targetView release];
        targetView=nil;
    }
];

参考サイト
UIView ClassMethods
http://developer.apple.com/library/ios/#documentation/uikit/reference/uiview_class/UIView/UIView.html#//apple_ref/doc/uid/TP40006816-CH3-SW110

[iOS6]UICollectionView

App Develop

2013-02-08

iOS6から使えるUICollectionViewを試しました。
UICollectionViewはこういうやつです。

サンプルプロジェクトファイル(SampleCollectionView.zip)

ファイルはこんな感じにする。

RootViewController.h

#import <UIKit/UIKit.h>
#import "CollectionCell.h"
#import "CollectionHeaderView.h"

@interface RootViewController : UIViewController{
    
@private
    NSMutableArray*photos;
    int cellcnt;
}
@property (retain, nonatomic) IBOutlet UICollectionView *collectionView;

@end

RootViewController.m 追記部分

-(NSString*)pzero:(NSString*)s keta:(int)keta{
    if (s.length>=keta) {
        return s;
    }
    do {
        s=[NSString stringWithFormat:@"0%@",s];
    } while (s.length<keta);
    return s;
}
-(NSString*)pzeroByInt:(int)n keta:(int)keta{
    NSString*s=[NSString stringWithFormat:@"%d",n];
    if (s.length>=keta) {
        return s;
    }
    do {
        s=[NSString stringWithFormat:@"0%@",s];
    } while (s.length<keta);
    return s;
}
-(float)getFillRatio:(CGSize)sourceSize targetSize:(CGSize)targetSize{
    CGFloat widthRatio  = targetSize.width  / sourceSize.width;
    CGFloat heightRatio = targetSize.height / sourceSize.height;
    return (widthRatio > heightRatio) ? widthRatio : heightRatio;
}
-(UIImage*)getResizeImageFillCrop:(UIImage*)img size:(CGSize)_size{
    CGFloat ratio=[self getFillRatio:img.size targetSize:_size];
    CGSize resizedSize = CGSizeMake(roundf(img.size.width*ratio), roundf(img.size.height*ratio));
    
    UIGraphicsBeginImageContext(resizedSize);
    [img drawInRect:CGRectMake(0, 0, resizedSize.width, resizedSize.height)];
    UIImage* resizedImage = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    
    return [self getCropImage:resizedImage rect:CGRectMake((resizedImage.size.width-_size.width)*0.5, (resizedImage.size.height-_size.height)*0.5, _size.width, _size.height)];
}
-(UIImage*)getCropImage:(UIImage*)img rect:(CGRect)rect{
    CGImageRef imgref=CGImageCreateWithImageInRect([img CGImage],rect);
    UIImage *result=[UIImage imageWithCGImage:imgref];
    CGImageRelease(imgref);
    return result;
}



-(void)initCollection{
    photos=[[NSMutableArray alloc]initWithCapacity:11];
    int i;
    for (i=0; i<23; i++) {
        UIImage*img=[UIImage imageNamed:[NSString stringWithFormat:@"sc%@.png",[self pzeroByInt:i keta:2]]];
        [photos addObject:[self getResizeImageFillCrop:img size:CGSizeMake(78, 78)]];
        //[photos addObject:img];
    }
    cellcnt=[photos count];
    [self.collectionView registerClass:[CollectionCell class] forCellWithReuseIdentifier:@"MY_CELL"];
    UINib *headerNib = [UINib nibWithNibName:@"CollectionHeaderView" bundle:nil];
    [self.collectionView registerNib:headerNib forSupplementaryViewOfKind:UICollectionElementKindSectionHeader withReuseIdentifier:@"MY_HEADER"];
}
-(void)resetCollection{
    [self.collectionView reloadData];
}
- (NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView {
    return 1;
}
- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section {
    return [photos count];
}
- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath {
    CollectionCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"MY_CELL" forIndexPath:indexPath];
    cell.imageview.image=[photos objectAtIndex:indexPath.item];
    return cell;
}
- (UICollectionReusableView *)collectionView:(UICollectionView *)collectionView viewForSupplementaryElementOfKind:(NSString *)kind atIndexPath:(NSIndexPath *)indexPath {
    CollectionHeaderView *headerView=[collectionView dequeueReusableSupplementaryViewOfKind:UICollectionElementKindSectionHeader withReuseIdentifier:@"MY_HEADER" forIndexPath:indexPath];
    headerView.label.text=@"セクションヘッダー";
    return headerView;
}
- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout referenceSizeForHeaderInSection:(NSInteger)section {
    return CGSizeMake(200, 50);
}
- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath {
    UIImage *image = [photos objectAtIndex:indexPath.item];
    return CGSizeMake(image.size.width, image.size.height);
}
- (void)viewDidLoad
{
    [super viewDidLoad];
    [self initCollection];
}

RootViewController.xib

CollectionCell.h

#import <UIKit/UIKit.h>

@interface CollectionCell : UICollectionViewCell{
    UIImageView*imageview;
}
@property(nonatomic,assign)UIImageView*imageview;
@end

CollectionCell.m

#import "CollectionCell.h"

@implementation CollectionCell
@synthesize imageview;

- (id)initWithFrame:(CGRect)frame
{
    self = [super initWithFrame:frame];
    if (self) {
        self.backgroundColor=[UIColor whiteColor];
        UIImageView *iv=[[UIImageView alloc] initWithFrame:CGRectMake(2, 2, frame.size.width - 4, frame.size.height - 4)];
        iv.autoresizingMask=18;
        [self.contentView addSubview:iv];
        self.imageview=iv;
    }
    return self;
}

/*
// Only override drawRect: if you perform custom drawing.
// An empty implementation adversely affects performance during animation.
- (void)drawRect:(CGRect)rect
{
    // Drawing code
}
*/

- (void)setSelected:(BOOL)selected{
    [super setSelected:selected];
    if(selected){
        self.backgroundColor=[UIColor cyanColor];
    }else{
        self.backgroundColor=[UIColor whiteColor];
    }
}

@end

CollectionHeaderView.h

#import <UIKit/UIKit.h>

@interface CollectionHeaderView : UICollectionReusableView

@property (nonatomic,assign) IBOutlet UILabel *label;

@end

CollectionHeaderView.m

#import "CollectionHeaderView.h"

@implementation CollectionHeaderView

- (id)initWithFrame:(CGRect)frame
{
    self = [super initWithFrame:frame];
    if (self) {
        // Initialization code
    }
    return self;
}

/*
// Only override drawRect: if you perform custom drawing.
// An empty implementation adversely affects performance during animation.
- (void)drawRect:(CGRect)rect
{
    // Drawing code
}
*/

@end

CollectionHeaderView.xib

便利ですね

[iOS6]UIActivity

App Develop

2013-02-07

iOS6から使えるUIActivityを試しました。
UIActivityはこういうやつです。

-(void)startActivity:(int)type{
    NSString*text=@"Hello World!! ";
    NSArray*actItems=nil;
    UIImage*image=nil;
    NSURL*url=nil;
    UIActivityViewController*actView;
    
    switch (type) {
        case 0://text
            actItems=[NSArray arrayWithObjects:text, nil];
            break;
        case 1://text + image
            image=_img0.image;
            actItems=[NSArray arrayWithObjects:text,image, nil];
            break;
        case 2://text + url
            url=[NSURL URLWithString:_tf0.text];
            actItems=[NSArray arrayWithObjects:text,url, nil];
            break;
            
        default:
            break;
    }
    
    
    actView=[[[UIActivityViewController alloc] initWithActivityItems:actItems applicationActivities:nil] autorelease];
    
    actView.completionHandler = ^(NSString *activityType, BOOL completed){
        //投稿した時
        NSLog(@" activityType: %@", activityType);
        NSLog(@" completed: %i", completed);
        if (!completed) {//キャンセル or 失敗
            
        }
    };
    
    [self presentViewController:actView animated:YES completion:^{
        //出現アニメ終了時
        NSLog(@"appear!!");
    }];
}

//実行
[self startActivity:1];

上記startActivityメソッドで
type:0

type:1

type:2

type:1でTwitterをタップしたところ

[iOS6]Safariでinput type="file"

App Develop

2013-02-05

iOS6のSafariからformのinput type=”file”に対応しているので試しました。
code Sample

formを作ると左のように表示される。

[ファイルを選択]をタップしたところ

[既存の項目を選択]から画像を選択したところ

[既存の項目を選択]から動画を選択すると、「ビデオを圧縮中…」と出る

動画のサムネイルが表示される

[送信]をタップして遷移したところ

index.html

<!DOCTYPE html>
<html lang="ja">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<meta http-equiv="Content-Script-Type" content="text/javascript">
<meta http-equiv="Content-Style-Type" content="text/css">
<title>sample00</title>
<meta name="description" content="****">
<meta name="keywords" content="****">
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
<meta name="format-detection" content="telephone=no,address=no,email=no">
<link rel="apple-touch-icon" href="apple-touch-icon.png">
<link rel="stylesheet" href="style.css" type="text/css">
</head>
<body>
<form method="post" action="upload.php" enctype="multipart/form-data">
	<input type="file" name="selectedFile" />
	<br/>
	<br/>
	<input type="submit"/>
</form>
</body>
</html>

upload.php

<!DOCTYPE html>
<html lang="ja">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<meta http-equiv="Content-Script-Type" content="text/javascript">
<meta http-equiv="Content-Style-Type" content="text/css">
<title>sample00</title>
<meta name="description" content="****">
<meta name="keywords" content="****">
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
<meta name="format-detection" content="telephone=no,address=no,email=no">
<link rel="apple-touch-icon" href="apple-touch-icon.png">
<link rel="stylesheet" href="style.css" type="text/css">
</head>
<body>
<?php
$ext=end(explode('.', $_FILES["selectedFile"]["name"]));
$filename='./test.'.$ext;
$result = @move_uploaded_file( $_FILES["selectedFile"]["tmp_name"], $filename);
if($result){
	echo '<img src="'.$filename.'"/><br/>';

	foreach($_FILES["selectedFile"] as $key => $v){
		echo $key.' : '.$v.'<br/>';
	}
}else{
	echo 'エラー';
}
?>
</body>
</html>

[objective-c]ELCImagePickerControllerを使ってカメラロールの写真を複数選択

2013-01-18

ELCImagePickerControllerを使ってカメラロールの写真を複数選択

1) LibraryをLinkさせる
・プロジェクトを選択
・TARGETSを選択
・Build Phasesをクリック
・Link Binary With Librariesをクリック
・「+」をクリック
・AssetsLibrary.frameworkを選択して「add」

2)ヘッダファイルでimport

#import "ELCImagePickerController.h"
#import "ELCAlbumPickerController.h"

3)実装

-(float)getFillRatio:(CGSize)sourceSize targetSize:(CGSize)targetSize{
    CGFloat widthRatio  = targetSize.width  / sourceSize.width;
    CGFloat heightRatio = targetSize.height / sourceSize.height;
    return (widthRatio > heightRatio) ? widthRatio : heightRatio;
}
-(UIImage*)getResizeImageFill:(UIImage*)img size:(CGSize)_size{
    CGFloat ratio=[self getFillRatio:img.size targetSize:_size];
    CGSize resizedSize = CGSizeMake(roundf(img.size.width*ratio), roundf(img.size.height*ratio));
    
    UIGraphicsBeginImageContext(resizedSize);
    [img drawInRect:CGRectMake(0, 0, resizedSize.width, resizedSize.height)];
    UIImage* resizedImage = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    
    return resizedImage;
}




-(void)startPhotoSelect{
    if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone) {
        ELCAlbumPickerController *albumController = [[[ELCAlbumPickerController alloc] initWithNibName:@"ELCAlbumPickerController" bundle:[NSBundle mainBundle]]autorelease];
        ELCImagePickerController *elcPicker = [[[ELCImagePickerController alloc] initWithRootViewController:albumController]autorelease];
        [albumController setParent:elcPicker];
        [elcPicker setDelegate:self];
        [self presentModalViewController:elcPicker animated:YES];
    } else {
    }
}
- (void)elcImagePickerController:(ELCImagePickerController *)picker didFinishPickingMediaWithInfo:(NSArray *)info {
	[self dismissModalViewControllerAnimated:YES];
    if ([info count]<1) {
        return;
    }
    int i;
    NSMutableDictionary*d;
    CGSize imageSize=CGSizeMake(100, 100);
    for (i=0; i<[info count]; i++) {
        d=[info objectAtIndex:i];
        UIImageView *imageview;
        imageview=[[UIImageView alloc] initWithImage:[self getResizeImageFill:[d objectForKey:UIImagePickerControllerOriginalImage] size:imageSize]];
        [self.view addSubview:imageview];
        imageview.frame=CGRectMake(20.0*i, 20.0*i, imageSize.width, imageSize.height);
    }
}
- (void)elcImagePickerControllerDidCancel:(ELCImagePickerController *)picker {
	[self dismissModalViewControllerAnimated:YES];
}

//ここから実行
-(IBAction)whenTapBtn:(id)sender{
    [self startPhotoSelect];
}

github:ELCImagePickerController
https://github.com/elc/ELCImagePickerController