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Fixed the memory leaks in iOS.

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This commit is contained in:
Rossen Hristov
2015-04-20 09:44:29 +03:00
parent d2d5402160
commit 08ce45959c
7 changed files with 120 additions and 59 deletions
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58
ui/image-cache/image-cache.ios.ts
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@@ -1,22 +1,77 @@
import common = require("ui/image-cache/image-cache-common");
import httpRequest = require("http/http-request");
import utils = require("utils/utils");
import trace = require("trace");
module.exports.knownEvents = common.knownEvents;
//class NSCacheDelegateImpl extends NSObject implements NSCacheDelegate {
// public static ObjCProtocols = [NSCacheDelegate];
// static new(): NSCacheDelegateImpl {
// return <NSCacheDelegateImpl>super.new();
// }
// public cacheWillEvictObject(cache: NSCache, obj: any): void {
// trace.write("NSCacheDelegateImpl.cacheWillEvictObject(" + obj + ");", trace.categories.Debug);
// }
//}
class MemmoryWarningHandler extends NSObject {
static new(): MemmoryWarningHandler {
return <MemmoryWarningHandler>super.new();
}
private _cache: NSCache;
public initWithCache(cache: NSCache): MemmoryWarningHandler {
this._cache = cache;
NSNotificationCenter.defaultCenter().addObserverSelectorNameObject(this, "clearCache", "UIApplicationDidReceiveMemoryWarningNotification", null);
trace.write("[MemmoryWarningHandler] Added low memory observer.", trace.categories.Debug);
return this;
}
public dealloc(): void {
NSNotificationCenter.defaultCenter().removeObserverNameObject(this, "UIApplicationDidReceiveMemoryWarningNotification", null);
trace.write("[MemmoryWarningHandler] Removed low memory observer.", trace.categories.Debug);
super.dealloc();
}
public clearCache(): void {
trace.write("[MemmoryWarningHandler] Clearing Image Cache.", trace.categories.Debug);
this._cache.removeAllObjects();
utils.GC();
}
public static ObjCExposedMethods = {
"clearCache": { returns: interop.types.void, params: [] }
};
}
export class Cache extends common.Cache {
private _cache: NSCache;
//private _delegate: NSCacheDelegate;
private _memoryWarningHandler: MemmoryWarningHandler;
constructor() {
super();
this._cache = new NSCache();
//this._delegate = NSCacheDelegateImpl.new();
//this._cache.delegate = this._delegate;
this._memoryWarningHandler = MemmoryWarningHandler.new().initWithCache(this._cache);
}
public _downloadCore(request: common.DownloadRequest) {
var that = this;
httpRequest.request({ url: request.url, method: "GET" })
.then(response => {
var image = UIImage.imageWithData(response.content.raw);
var image = UIImage.alloc().initWithData(response.content.raw);
that._onDownloadCompleted(request.key, image);
});
}
@@ -35,5 +90,6 @@ export class Cache extends common.Cache {
public clear() {
this._cache.removeAllObjects();
utils.GC();
}
}