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Access android context in ndk application
Is there any way in which I can pass/get an object of android context in my ndk appliation. I want to use SharedPreferences in my ndk application via jni interface. To get an instance of SharedPreferences object, I need to call getSharedPreferences() on Context object. But I do not have access to the context object. OR How can I read and write an xml file from NDK ? Any pointers will be appreciate
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Android ã®ãƒ†ã‚¹ãƒˆã§è¨è¨ˆã‚’イイカンジã«ã—よㆠ- Qiita
Deleted articles cannot be recovered. Draft of this article would be also deleted. Are you sure you want to delete this article? Android フレームワークã¯ã€ã‚ã¾ã‚Šå¼·åŠ›ã¨ã¯ã„ãˆãªã„ã‚‚ã®ã®ã€ã‚る程度ã®ãƒ†ã‚¹ãƒˆãƒ•ãƒ¬ãƒ¼ãƒ ワークを内包ã—ã¦ã„ã¾ã™ã€‚ ベース㌠JUnit3 ãªã®ã§ã€è¨˜æ³•ãŒå¤ã‹ã£ãŸã‚Šã™ã‚‹ã“ã¨ã‚‚ã‚ã‚Šã¾ã™ãŒã€ã¨ã‚Šã‚ãˆãš JUnit3 ã®ä½œæ³•ã‚’身ã«ä»˜ã‘ã‚Œã°ã‚る程度ã®ãƒ†ã‚¹ãƒˆã¯æ›¸ãã“ã¨ãŒå‡ºæ¥ã¾ã™ã€‚ Android ã®ãƒ†ã‚¹ãƒˆã‚±ãƒ¼ã‚¹ãƒ•ãƒ¬ãƒ¼ãƒ ワーク Android ãŒã‚‚ã¤å„種ã®ã‚³ãƒ³ãƒãƒ¼ãƒãƒ³ãƒˆã‚’テストã™ã‚‹ãŸã‚ã®ãƒ•ãƒ¬ãƒ¼ãƒ ワークãŒæœ‰ã‚Šã¾ã™ã€‚ ã„ã‚ã„ã‚ãªç¨®é¡žãŒã‚ã‚Šã¾ã™ãŒã€ãŠãらãæœ€ã‚‚é »ç¹ã«ä½¿ã†ã®ã¯AndroidTestCaseã§ã—ょã†ã€‚ AndroidTestCase Andro
Androidã®ã‚½ãƒ¼ã‚¹ã‚³ãƒ¼ãƒ‰ãƒ¬ãƒ“ュー(メモリリーク)
有é™ã§ã‚るモãƒã‚¤ãƒ«ç«¯æœ«ã®ãƒ¡ãƒ¢ãƒªã‚’無駄ã«æ¶ˆè²»ã™ã‚‹ã‚¢ãƒ—リã¯æ‚ªã 。ãã‚“ãªã‚¢ãƒ—リã®ã‚½ãƒ¼ã‚¹ã‚³ãƒ¼ãƒ‰ãƒ¬ãƒ“ュー担当者ã®ç›®ã¯ç¯€ç©´ã 。 ã¨è¨€ã‚ã‚Œãªã„ãŸã‚ã‹å¦ã‹ã¯çŸ¥ã‚‰ãªã„ã‘ã©ã€Android Developers - Avoiding Memory Leaksã§ã¯ã€Androidアプリを作æˆã™ã‚‹ä¸Šã§ã€ãƒ¡ãƒ¢ãƒªãƒªãƒ¼ã‚¯ãŒç™ºç”Ÿã™ã‚‹ãƒ‘ターンã¨ãã®å¯¾å‡¦æ³•ã‚’色々ã¨ç´¹ä»‹ã—ã¦ã„る。(英語) è¦ç‚¹ã®ã¿ã‚’自分ãŒè¦‹ç›´ã—易ã„よã†ã«ã¾ã¨ã‚ã¤ã¤ã€èª¬æ˜Žã®è¶³ã‚Šã¦ãªã„「éžstaticãªå†…部クラスãŒé§„ç›®ãªä»¶ã€ã«ã¤ã„ã¦æ›¸ã„ã¦ã¿ã‚‹ã€‚ ãã‚‚ãもメモリリークã™ã‚‹ã‚“？Java実行環境下ã§ã¯ã€ã‚¬ãƒ™ãƒ¼ã‚¸ã‚³ãƒ¬ã‚¯ã‚¿ã«ã‚ˆã‚‹ãƒ¡ãƒ¢ãƒªç®¡ç†ãŒè¡Œã‚ã‚Œã¦ã„ã‚‹ãŸã‚大抵ã®å ´åˆã¯æ„è˜ã›ãšã¨ã‚‚メモリをã„ã„æ„Ÿã˜ã«å›žåŽã—ã¦ãれる。ã ãŒã€ã‚¬ãƒ™ãƒ¼ã‚¸ã‚³ãƒ¬ã‚¯ã‚¿ã®å‹•ä½œã‚’妨ã’るよã†ãªã‚³ãƒ¼ãƒ‰ã‚’書ã„ã¦ã—ã¾ã†ã¨ã€ã„ã¤ã¾ã§çµŒã£ã¦ã‚‚解放ã•ã‚Œã‚‹ã¹ãメモリãŒè§£æ”¾ã•ã‚Œãªããªã‚‹ã€‚ã“ã‚ŒãŒä»Šå›žã®ãŠé¡Œã§ã‚ã‚‹Javaã«ãŠã‘るメモ
Androidã®WebView#addJavascriptInterfaceã¯åŸºæœ¬ä½¿ã‚ãªã„æ–¹ãŒã„ã„ã€ã£ã¦ã„ã†è©± - æ„›ã¨å‹‡æ°—ã¨ç¼¶ãƒ“ール
åŸºç¤ŽçŸ¥è˜ Androidアプリケーションã§åŸ‹ã‚è¾¼ã¿ãƒ–ラウザã®ã‚ˆã†ãªã‚‚ã®ã‚’実ç¾ã™ã‚‹ãŸã‚ã®Viewコンãƒãƒ¼ãƒãƒ³ãƒˆã§ã‚ã‚‹android.webkit.WebViewã«ã¯æ¬¡ã®ã‚ˆã†ãªã‚·ã‚°ãƒãƒãƒ£ã§addJavascriptIntefaceã¨ã„ã†ãƒ¡ã‚½ãƒƒãƒ‰ãŒç”Ÿãˆã¦ã„ã¾ã™ã€‚ http://developer.android.com/reference/android/webkit/WebView.html#addJavascriptInterface(java.lang.Object,%20java.lang.String) ã“ã‚Œã¯ã€ç°¡å˜ã«è¨€ã†ã¨Javaã®ã‚ªãƒ–ジェクトをWebView内ã§ãƒãƒ¼ãƒ‰ã•ã‚ŒãŸJavaScriptã‹ã‚‰å©ã‘るよã†ã«ãªã‚‹ã€ã¨ã„ã†ã‚‚ã®ã§ã™ã€‚例ãˆã° class JSInterface { private Context context; public JSInterface(Context c
Android Developers Blog: Avoiding memory leaks
Android applications are, at least on the T-Mobile G1, limited to 16 MB of heap. It's both a lot of memory for a phone and yet very little for what some developers want to achieve. Even if you do not plan on using all of this memory, you should use as little as possible to let other applications run without getting them killed. The more applications Android can keep in memory, the faster it will b
Androidã§ã‚‚èµ·ã“るメモリリーク - iRSSã®æ—¥è¨˜
Javaãªã®ã§ã€ãƒ¡ãƒ¢ãƒªãƒªãƒ¼ã‚¯ã¯èµ·ã“らãªã„ã¨æ€ã£ã¦ãŸã®ã§ã™ãŒã€ãƒ¡ãƒ¢ãƒªãƒ¼ãƒªãƒ¼ã‚¯ã«ç›¸å½“ã™ã‚‹ãšã„ã€å®Ÿè£…ã¯ã‚ã‚Šå¾—ã¾ã™ã€‚ ç”»åƒã‚’メモリã‚ャッシュã«å…¥ã‚Œã‚ˆã†ã¨ã—ã¦ã€ã„ãŸã®ã§ã™ãŒã€ãã®éš›ã«ã€Œã‚„ã£ã¦ã¯ã„ã‘ãªã„ã€å®Ÿè£…ã‚’ã‚„ã£ã¦ã¾ã—ãŸã€‚ OutOfMemoryErrorãŒã€ç”»åƒã®èªã¿è¾¼ã¿æ™‚ã«å‡ºã‚‹ã‚ˆã†ã«ãªã£ãŸã®ã§ã™ãŒã€ 例ãˆã°ã€Drawableã¯ãƒãƒ¼ãƒ‰æ™‚é–“ã‹ã‹ã‚‹ã®ã§ã‚¢ãƒ—リケーションã§ã‚ャッシュã—ã¦ãŠããŸããªã‚‹ã€‚ã¨ã“ã‚ãŒã€Drawableã¯onCallbackã®ãŸã‚ã«Viewã‚’å‚ç…§ã—ã¦ãŠã‚Šã€ãã®Viewã¯Contextã¨ã—ã¦Activityã‚’å‚ç…§ã—ã¦ã„る。ã—ãŸãŒã£ã¦ã€DrawableãŒç”Ÿãã¦ã„ã‚‹ã‚ã„ã ã¯ActivityãŒè§£æ”¾ã•ã‚Œãªããªã‚‹ã€‚ ã¾ã•ã«ã“ã®äº‹ä¾‹ã©ãŠã‚Šã®ã“ã¨ã§ã™ã€‚ ã“ã‚“ãªã“ã¨ã«ãªã‚‰ãªã„ãŸã‚ã«ã¯ã€Contextã‚’ãã®ã‚¹ã‚³ãƒ¼ãƒ—外ã§å‚ç…§ã—ãªã„よã†ã«ã™ã‚‹ã€ã¾ãŸã€ã‚¢ãƒ—リケーションã§å…±é€šã«åˆ©ç”¨ã™ã‚‹ã‚ªãƒ–ジェクトã«ã¯Cont
Why there is an invalid context error?
Here is the code I use to draw: - (void) drawSomething { CGContextRef context = UIGraphicsGetCurrentContext(); CGContextSetRGBStrokeColor(context, 1, 0, 0, 1); CGContextSetLineWidth(context, 6.0); CGContextMoveToPoint(context, 100.0f, 100.0f); CGContextAddLineToPoint(context, 200.0f, 200.0f); CGContextStrokePath(context); NSLog(@"draw"); } But I got the error like this: [Session started at 2010-04
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get application name from NDK
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