他,因爲我用我的圖片爲實例變量(因爲我需要經常吸引他們全部)以這種方式(在我的NSView):實例變量NSImage中未畫出
@implementation BeatView
- (id)initWithFrame:(NSRect)frame{
self = [super initWithFrame:frame];
if (self) {
bpm=160;
mbpm=0;
NSImage *bz_BG = [NSImage imageNamed:@"mw_bg01.png"];
NSImage *bz_PaAc = [NSImage imageNamed:@"pattactive.png"];
NSImage *bz_PaIa = [NSImage imageNamed:@"pattinactive.png"];
}
return self;
}
,然後得出:
- (void)drawRect:(NSRect)dirtyRect{
NSPoint imagePos = NSMakePoint(0, 0);
[bz_BG dissolveToPoint:imagePos fraction:1.0];
}
沒有錯誤(只警告不使用的圖像變量)。運行時,不會繪製圖像。我在這裏做錯了什麼?謝謝...
很酷,謝謝! – fw2601 2013-02-26 18:21:34