objective c - crop image from certain portion of screen in iphone programmatically -

-

एनएसएयूटीओरियसपूल * पूल = [[एनएसएयूटीओरियसपुल आलोक] इनट]; CGSize contextSize = CGSizeMake (320,400); UIGraphicsBeginImageContext (self.view.bounds.size);

<पूर्व> UIGraphicsBeginImageContext (contextSize); [Self.view.layer renderIncontext: UIGraphicsGetCurrentContext ()]; UIImage * savedImg = UIGraphicsGetImageFromCurrentImageContext (); UIGraphicsEndImageContext (); [स्व सेटस्वेइज़ेज़: बचाइएग];

मुख्य स्क्रीन से छवि के कुछ भाग को extarct करने के लिए।

UIGraphicsBeginImageContext में मैं केवल आकार का उपयोग कर सकते हैं, CGRect या छवि निकालने के लिए किसी अन्य तरीके का उपयोग करने के लिए कोई रास्ता नहीं है स्क्रीन के एक विशेष भाग से (एक्स, वाई, 320, 400) कुछ इस तरह से

आशा यह मदद करता है: 

  // नया चित्र प्रसंग बनाएं (रेटिना सुरक्षित) यूआईजीआरएफ़फ़्रेंसजर्मइज़ेज़ेन्टेन्टेकविथ विकल्प (आकार, नहीं, 0.0); // छवि के लिए रीसेट बनाएं सीजीआरसीआरसीटीआरसीटी = सीजीआरएक्टेक (एक्स, वाई, आकार। वाइड, आकार। हाइट); // छवि को रीक्ट में डालें [मौजूदा इमेज ड्राइनक्ट: रीक्ट]; // छवि को सहेजना, छवि संदर्भ को समाप्त करना UIImage * newImage = UIGraphicsGetImageFromCurrentImageContext (); UIGraphicsEndImageContext ();

Comments

Post a Comment

Popular posts from this blog

iphone - How do I make a UIPickerView in a UIActionSheet -

-
Just want to know how I will create UIPickerView in a UIActionSheet with a simple array. Well, I really know how to put it in an action sheet but I like my way because it is more for my app, thanks, but I I also want to know how to put options in UIPKviewView, I just have an array with colors already on top of that part: red, green, blue, yellow, black, etc. in this, but I want to know how it In the preview d L'be if I am using the already Instifrem:? Please help anyone. I know that this is a stupid question, but I'm cheating my head on my $$$$$$ MacBook. Instead you want to do this, create your UIPickerView interface builder and have it in your view controller Connect to the outlet. Add it as a subview of your main view and set its frame coordinates so that it is offset right below the edge, x = 0, y = 480 Then, when you want to display a picker, animate it like something with the screen: [UIView startup permissions: zero reference: zero]; [Color picture setfr...
Read more

java - Is there an object like a "Set" that can contain only unique string values, but also contain a count on the number of occurrences of the string value? -

-
There is an object like "set" in Java that can contain only unique string values, but it also includes a count Is the number of string value in number? This idea is simple. A data set, ALA ... ABBCCC I will set the text of each line set- I want to add to the object every time a non-unique text is added to the set, I also want to show a numeric value associated with the set to show how often it was added. So if I run it on the above data then set output will be something like this: A: 1B: 2C: 3 Any ideas? Maps & lt; String, integer & gt; add public null (strings) {if (map.containsKey (s)) {map.put (s, map.get (s) + 1); } And {map.put (S, 1); }}
Read more