Welcome to Comprehensive Rust 🦀 - Comprehensive Rust 🦀
Welcome to Comprehensive Rust 🦀 This is a free Rust course developed by the Android team at Google. The course covers the full spectrum of Rust, from basic syntax to advanced topics like generics and error handling. The latest version of the course can be found at https://google.github.io/comprehensive-rust/. If you are reading somewhere else, please check there for updates. The course is availab
OnActivityResult - ãŠã¾ãˆã‚‰ï¼ã‚‚ã†onActivityResultã§switchã¨if書ã時代ã¯çµ‚ã‚ã‚Šã ãžï¼
OnActivityResult - ãŠã¾ãˆã‚‰ï¼ã‚‚ã†onActivityResultã§switchã¨if書ã時代ã¯çµ‚ã‚ã‚Šã ãžï¼ OnActivityResult ãŠã¾ãˆã‚‰ï¼ã‚‚ã†onActivityResultã§switchã¨if書ã時代ã¯çµ‚ã‚ã‚Šã ãžï¼ OnActivityResult https://github.com/vanniktech/OnActivityResult Sample Code https://github.com/operando/OnActivityResult/tree/my_sample_code/onactivityresult-sample Activity.RESULT_FIRST_USER https://developer.android.com/reference/android/app/Activity.html#RESULT_FIRST_USE
A categorized directory of libraries and tools for Android | Android-Arsenal.com
Simple Camera is a library that allows you to use cameras in a simplified, easy, fast and effective way. It contains CameraX as an internal library. It simplifies the camera features used by CameraX and provides ease of use with a single library. As updates come on the CameraX side, the library will try to stay up to date. Missing features will be added soon. Like video capturing.
レイアウトã®æ–‡å—色をé€æ˜Žã«ã™ã‚‹ï½œã‚¢ãƒ³ãƒ‰ãƒã‚¤ãƒ‰ã‚¢ãƒ—リ開発
xmlã§é€æ˜Žè‰²ã«ã—ãŸã„ã¨ãã¯ã€è‰²ã‚³ãƒ¼ãƒ‰ã®é ã«ã•ã‚‰ã«ï¼’ã¤ï¼‘ï¼–é€²æ•°ã‚’åŠ ãˆã‚‹ã€‚ 00ã«è¿‘ã„ã»ã©é€æ˜Žã«ãªã‚‹ã€‚ [xml title=â€color.xmlâ€] <resources> <!– é€æ˜Žã®èµ¤(00ã«è¿‘ã„ã»ã©é€æ˜Ž) –> <color name="red">#33FF0000</color> <!– 通常ã®èµ¤ –> <color name="red">#FF0000</color> <!– ã“れも通常ã®èµ¤ –> <color name="red">#FFFF0000</color> </resources> [/xml]
[Android] GPSã§ä½ç½®æƒ…å ±ã‚’å–å¾—ã™ã‚‹ã‚¢ãƒ—リを作る
アンドãƒã‚¤ãƒ‰ã§ä½ç½®æƒ…å ±ã‚’å–å¾—ã—ãŸã„å ´åˆã¯ã€ç«¯æœ«ã®GPSã¨Wifiや基地局GPSを組ã¿åˆã‚ã›ãŸã€FusedLocationProvider ãŒæŽ¨å¥¨ã•ã‚Œã¾ã™ã€‚ãã®ä¸ã§ã‚‚高ã„精度（数メール）ãŒå¾—られるã®ã¯GPSã§ã™ã€‚ç°¡å˜ã«GPSã‚’èµ·å‹•ã•ã›ã¦ç·¯åº¦çµŒåº¦ã‚’å–å¾—ã—ã¦ã¿ã¾ã™ã€‚ LocationManager API 30 ã‹ã‚‰ã®å¤‰æ›´ã¨ã—ã¦ã¯ã€ãƒãƒƒã‚¯ã‚°ãƒ©ã‚¦ãƒ³ãƒ‰ã§ã®ä½ç½®æƒ…å ±ã¸ã®ã‚¢ã‚¯ã‚»ã‚¹æ¨©ã‚’付与ã™ã‚‹ã«ã¯ã€ãƒ¦ãƒ¼ã‚¶ãƒ¼ã‚’システムè¨å®šã«ç§»å‹•ã—ã¦è¨±å¯ã‚’å¾—ã‚‹å¿…è¦ãŒã‚ã‚Šã¾ã™ã€‚ GPSã®å®Ÿè£…ã¯è‰²ã€…ã¨åˆ¶ç´„ãŒã¤ã„ã¦ã„ã‚‹ã®ã§ã€ã“ã“ã§ã®å†…容ã¯ä»¥ä¸‹ã®æ¡ä»¶ã«ãªã‚Šã¾ã™ã€‚ GPSã‚’èµ·å‹•ã™ã‚‹ãŸã‚ã®ç°¡å˜ãªå®Ÿè£… 1ã¤ã®Runtime Permissionã®ã¿ã‚’想定 フォアグランドã®ã¿ã§ã®å®Ÿè¡Œ ã¾ãŸã€åŸºæœ¬çš„ã«Androidæ©Ÿã¯GPSã ã‘ã§ã¯ä½ç½®æƒ…å ±ã‚’å–å¾—ã—ã¦ã„ãªã„ã®ã§ FusedLocationProvider を実装ã™ã‚‹ã“ã¨ã‚’最åˆã‹ã‚‰æ¤œè¨Žã™ã‚‹é¸æŠžè‚¢
![[Android] GPSã§ä½ç½®æƒ…å ±ã‚’å–å¾—ã™ã‚‹ã‚¢ãƒ—リを作る](https://cdn-ak-scissors.b.st-hatena.com/image/square/c2f6bdff2086fd06afcc6efc193a83a923036f5e/height=288;version=1;width=512/https%3A%2F%2Fakira-watson.com%2Fwp-content%2Fuploads%2F2015%2F02%2Fgps_a00.jpg)
SimpleDateFormat ã§ã¯ãªã android.text.format.DateFormat を使ãŠã†
SimpleDateFormat ã®ãƒ‘ターン文å—列ã ã‘ã‚’ã¨ã‚‹ã‚³ãƒ³ã‚¹ãƒˆãƒ©ã‚¯ã‚¿ã‚’使ã†ã¨ã€Locale 指定ã—ã‚よã£ã¦ Lint ã•ã‚“ã«æ€’られã¾ã™ã€‚ android ã§ç”¨æ„ã•ã‚Œã¦ã„ã‚‹ DateFormat を使ã„ã¾ã—ょã†ã€‚ SimpleDateFormat ã¨é•ã£ã¦ã€format() ã« Calendar インスタンスを渡ã™ã“ã¨ãŒã§ãã¾ã™ï¼ˆDate インスタンスや inTimeInMillis（long）を渡ã™ã“ã¨ã‚‚ã§ãã¾ã™ï¼‰ã€‚ Time Pattern Syntax 㯠SimpleDateFormat ã¨ã»ã¼åŒã˜ã§ã™ãŒ H ã®ä»£ã‚ã‚Šã« k を使ã†ãªã©é•ã„ã‚‚ã‚ã‚Šã¾ã™ã€‚ String text = DateFormat.format("yyyy/MM/dd, E, kk:mm:ss", Calendar.getInstance()); textView.setText(text); DateFo
C++ã«ã‚ˆã‚‹iOSã¨Androidã§ã®ã‚¯ãƒã‚¹ãƒ—ラットフォーム開発：Dropboxã®æ•™è¨“
Spring Bootã«ã‚ˆã‚‹APIãƒãƒƒã‚¯ã‚¨ãƒ³ãƒ‰æ§‹ç¯‰å®Ÿè·µã‚¬ã‚¤ãƒ‰ 第2版 何åƒäººã‚‚ã®é–‹ç™ºè€…ãŒã€InfoQã®ãƒŸãƒ‹ãƒ–ック「Practical Guide to Building an API Back End with Spring Bootã€ã‹ã‚‰ã€Spring Bootを使ã£ãŸREST API構築ã®åŸºç¤Žã‚’å¦ã‚“ã 。ã“ã®æœ¬ã§ã¯ã€å‡ºç‰ˆæ™‚ã«æ–°ã—ãリリースã•ã‚ŒãŸãƒãƒ¼ã‚¸ãƒ§ãƒ³ã§ã‚ã‚‹ Spring Boot 2 を使用ã—ã¦ã„る。ã—ã‹ã—ã€Spring Boot3ãŒæœ€è¿‘リリースã•ã‚Œã€é‡è¦ãªå¤‰...
Android 5.1端末を他人ã«è²æ¸¡ã™ã‚‹ã¨ãã¯Device Protection（端末ä¿è·ï¼‰ã«æ³¨æ„
最近発売ã•ã‚ŒãŸAndroidスマホã«ã¯Android 5.1ã‚’æ載ã—ãŸã‚¹ãƒžãƒ›ã‚‚増ãˆã¦ãã¾ã—ãŸãŒã€Android 5.1端末をåˆæœŸåŒ–ã—ã¦å†è¨å®šã™ã‚‹æ™‚ã«ä»¥ä¸‹ã®ã‚ˆã†ãªç”»é¢ãŒè¡¨ç¤ºã•ã‚Œã‚‹ã“ã¨ãŒã‚ã‚Šã¾ã™ã€‚ ã“ã‚Œã¯ã€ŒDevice Protection（端末ä¿è·ï¼‰ã€ã¨å‘¼ã°ã‚Œã‚‹æ©Ÿèƒ½ã§ã€Android 5.0 以é™ãŒãƒ—リインストールã•ã‚Œã¦ã„ã¦ã€ç¾åœ¨ Android 5.1 以é™ã‚’æ載ã—ãŸï¼ˆåˆæœŸã®OSãƒãƒ¼ã‚¸ãƒ§ãƒ³ãŒ5.0以é™ã§ã€ã‚¢ãƒƒãƒ—グレードãªã©ã§5.1ã«ä¸ŠãŒã£ãŸï¼‰ç«¯æœ«ã«æ–°ã—ãè¿½åŠ ã•ã‚ŒãŸæ©Ÿèƒ½ã§ã™ã€‚ ã“ã‚Œã¯ç«¯æœ«ã‚’åˆæœŸåŒ–ã™ã‚‹éš›ã€Googleアカウント（Gmailアドレス）をè¨å®šã—ãŸã¾ã¾åˆæœŸåŒ–ã®å‡¦ç†ã‚’è¡Œã†ã¨å†è¨å®šæ™‚ã«ã‚‚åˆæœŸåŒ–å‰ã«è¨å®šã—ã¦ã„ãŸGoogleアカウントã¨ãƒ‘スワードを入力ã—ãªã„ã¨åˆæœŸè¨å®šã«é€²ã‚ãªã„ã¨ã„ã†ã‚‚ã®ã€‚ 紛失ãªã©ã«ã‚ˆã‚Šã€æ‚ªæ„ã‚る人ã«ç«¯æœ«ãŒåˆæœŸåŒ–・悪用ã•ã‚Œã‚‹ã®ã‚’防ããŸã‚ã®æ©Ÿèƒ½ã§ã™ã€‚ 今ã¾ã§ä½¿ã£ã¦ã„ãŸGoog
iOS / Android ã®ã‚¢ãƒ—リã®ç½²åã«ã¤ã„ã¦èª¿ã¹ã¦ã¿ãŸ - wm3's blog
最近スマートフォンå‘ã‘ã®é–‹ç™ºã‚’ã—ã¦ã„ã‚‹ã®ã§ã™ãŒã€ã‚¢ãƒ—リã®é…布ãªã©ã‚’è¡Œã†éš›ã®ã‚»ã‚ュリティã®ä»•çµ„ã¿ãŒã‚ˆãã‚ã‹ã‚‰ãªãã¦ãƒ¢ãƒ¤ãƒ¢ãƒ¤ã—ã¦ã„ã¾ã—ãŸã€‚特㫠iOS ã®æ–¹ã¯ãƒ—ãƒãƒ“ショニングプãƒãƒ•ã‚¡ã‚¤ãƒ«ã‚„ら証明書やらãŒå¤§é‡ã«ã‚ã‚Šã€ä½•ã‚’ã©ã†ç®¡ç†ã™ã‚Œã°ã„ã„ã®ã‹ãŒã‚ˆãã‚ã‹ã‚Šã«ãã„ã§ã™ã€‚ ã¨ã„ã†ã‚ã‘ã§ã€ã‚¢ãƒ—リケーションをé…布ã™ã‚‹éš›ã®ç½²åã‚„ãã®ä»–ã®ã‚»ã‚ュリティã®åŸºæœ¬çš„ãªä»•çµ„ã¿ã‚’調ã¹ãŸã®ã§ã€ãれを整ç†ã—ã¦ã¿ã¾ã—ãŸã€‚原始的ãªé…布方法ã‹ã‚‰è¤‡é›‘㪠iOS ã®é…布方法ã¾ã§ã‚’段階的ã«æ›¸ã„ã¦ã„ã¾ã™ã€‚ 対ç–ãªã— ã¾ãšã¯ã‚‚ã£ã¨ã‚‚ç°¡å˜ãªé…布方法。署åãªã©ã®é›£ã—ã„ã“ã¨ã¯ä¸€åˆ‡ä½•ã‚‚ã—ãªã„方法ã§ã™ã€‚昔ãªãŒã‚‰ã® PC å‘ã‘ã®ã‚¢ãƒ—リã®é…布方法ã§ã™ã€‚ 考察 ã“ã®æ–¹æ³•ã§ã®é…布ã¯ã€USBメモリã§ç›´æŽ¥æ¸¡ã™ãªã‚‰ã¨ã‚‚ã‹ãã€ã‚¤ãƒ³ã‚¿ãƒ¼ãƒãƒƒãƒˆçµŒç”±ã§ä¸ç‰¹å®šå¤šæ•°ã«é…布ã™ã‚‹å ´åˆç‰ã ã¨ã‚ã¾ã‚Šå®‰å…¨ã¨ã¯è¨€ãˆãªã„ã§ã—ょã†ã€‚ メールé…布ãªã©ã§ã‚ã‚Œã°ãªã‚Šã™ã¾ã—放題ã§ã™ã€‚フィッシングè©æ¬º
Nexus 5ã«Android L をインストールã™ã‚‹ - [開発] - L Developer Preview
Lã®ãƒžãƒ†ãƒªã‚¢ãƒ«ãƒ‡ã‚¶ã‚¤ãƒ³ã‚’早速触ã£ã¦ã¿ãŸãã€å…ˆæ—¥å…¬é–‹ã•ã‚ŒãŸAndroid L Developer Preview版をNexus5ã«ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã—ã¦ã¿ã¾ã—ãŸã€‚ 公開ã•ã‚ŒãŸã‚·ã‚¹ãƒ†ãƒ イメージã®å¯¾è±¡ç«¯æœ«ã¯ä»¥ä¸‹ã§ã™ã€‚ Nexus 5 Nexus 7 Wi-Fi (version 2, released in 2013) 以下ã®æ‰‹é †ã§ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã—ã¾ã—ãŸã€‚ １.システムイメージを入手 ï¼’.端末をアンãƒãƒƒã‚¯ ３.システムイメージをインストール １.システムイメージを入手 開発者サイトã®ä»¥ä¸‹ã§ãƒ€ã‚¦ãƒ³ãƒãƒ¼ãƒ‰å¯èƒ½ã§ã™ã€‚ http://developer.android.com/preview/setup-sdk.html 対象ã®ç«¯æœ«ã«åˆã‚ã›ã¦ã‚¤ãƒ¡ãƒ¼ã‚¸ã‚’ダウンãƒãƒ¼ãƒ‰ã—ã¾ã™ã€‚ 今回ã¯ã€Nexus5を利用ã™ã‚‹ãŸã‚〠「hammerhead-lpv79-preview-ac1d8a8e.tgzã€ã‚’ダウンãƒãƒ¼ãƒ‰ã—ã¾ã—ãŸã€‚
![Nexus 5ã«Android L をインストールã™ã‚‹ - [開発] - L Developer Preview](https://cdn-ak-scissors.b.st-hatena.com/image/square/4d8e11c86ba24c65920e613ad1d2a9ec3b37df28/height=288;version=1;width=512/https%3A%2F%2Fblogger.googleusercontent.com%2Fimg%2Fb%2FR29vZ2xl%2FAVvXsEgGNbFQUMVN221yTe5VHA7a-Xz8WviUg_Ly5Xdrt_CxfYZHm41Ein4ets87YhV1d893Gx0Ftjlnjy3LO2-FIZ7wUbBkUxghmZdM9zm8rSlmNtSrsDW_hfLgZXi_1CgSTmTf84JOa8nuwgts%2Fw1200-h630-p-k-no-nu%2FIMG_4469.jpg)
AsyncTaskをワーカースレッドã‹ã‚‰å‘¼ã¶ã¹ã‹ã‚‰ãš - å‰äººæœªè¸ã®é ˜åŸŸã¸ Androidアプリ開発編
Androidã®å¤ã„ãƒãƒ¼ã‚¸ãƒ§ãƒ³ã§ã¯ä»¥ä¸‹ã®ç¾è±¡ãŒç™ºç”Ÿã—ã†ã‚‹ã®ã§ãƒ¡ãƒ¢ã€‚ ç¾è±¡ ã‚るアプリã§AsyncTaskã®ã‚³ãƒ³ã‚¹ãƒˆãƒ©ã‚¯ã‚¿å‘¼ã³å‡ºã—時ã«ä»¥ä¸‹ã®ã‚ˆã†ãªã‚¨ãƒ©ãƒ¼ãŒç™ºç”Ÿã€‚ java.lang.ExceptionInInitializerError at sample.service.servicetest.SampleService$1.run(SampleService.java:72) at java.util.Timer$TimerImpl.run(Timer.java:289) Caused by: java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare() at android.os.Handler.<init>(Handler.java:121) at
Androidã«ãƒ¡ãƒ¢ãƒªç ´æãƒã‚°ãŒç™ºè¦‹ã•ã‚Œãƒ‡ãƒ¼ã‚¿ã‚’全消去ã™ã‚‹æ¥µæ‚ªã‚¢ãƒ—リã®ä½œæˆãŒå¯èƒ½
By Dick_Wu ã‚»ã‚ュリティリサーãƒãƒ£ãƒ¼ã®Ibrahim Balicã•ã‚“ã¯ã€Googleã®Android OSã«ãƒ¡ãƒ¢ãƒªã‚’クラッシュã•ã›ã‚‹æã‚Œã®ã‚る脆弱性を発見ã—ã¾ã—ãŸã€‚ãã®å¾ŒTrend MicroãŒBalicã•ã‚“ã®ç™ºè¦‹ã—ãŸè„†å¼±æ€§ã‚’調査ã—ãŸã¨ã“ã‚ã€æ‚ªæ„ã‚ã‚‹ãƒãƒƒã‚«ãƒ¼ã«ã‚ˆã£ã¦ã€ãƒ¦ãƒ¼ã‚¶ãƒ¼è‡ªèº«ãŒãƒ‡ãƒã‚¤ã‚¹ã«ä¿å˜ã•ã‚ŒãŸãƒ‡ãƒ¼ã‚¿ã‚’全消去ã—ã¦ã—ã¾ã†ã‚ˆã†ãªã‚¢ãƒ—リã®ä½œæˆãŒå¯èƒ½ã§ã‚ã‚‹ã“ã¨ãŒåˆ¤æ˜Žã—ã¦ã„ã¾ã™ã€‚ Android Vulnerability affected Google Play Bouncer (Emulator) | Ibrahim BALİÇ http://ibrahimbalic.com/2014/android-vulnerability-affected-google-play-bouncer-emulator/ New Android Bug Causes Bricked Device
ACTION_GET_CONTENT | Androidã‚¢ãƒ—ãƒªé–‹ç™ºæƒ…å ±ã¾ã¨ã‚ブãƒã‚°
環境構築ã€Android入門ã€ã‚¢ãƒ—リ開発ã€Android Tipsã€ã‚¢ã‚¤ã‚³ãƒ³ä½œæˆã€Android Marketã¸ã®é…布ãªã©// ACTION_PICK 㨠ACTION_GET_CONTENT ã®é•ã„ã¯ä»¥ä¸‹ã«ã€‚ // データをå–å¾—ã™ã‚‹ã‚¢ãƒ—リを開ã。 Intent intent = new Intent(Intent.ACTION_PICK); // データをå–å¾—ã™ã‚‹ã‚¢ãƒ—リ全ã¦ã‚’é–‹ã。ファイルエクスプãƒãƒ¼ãƒ©ãƒ¼ãªã©ã‚‚å«ã‚€ã€‚ Intent intent = new Intent(Intent.ACTION_GET_CONTENT); intent.setType("image/*"); startActivityForResult(intent, REQUEST_CODE); @Override protected void onActivityResult(int requestCode, i
Androidã®apkã®AndroidManifestを編集ã—ã¦ãƒªã‚³ãƒ³ãƒ‘イルã™ã‚‹æ–¹æ³•
å‰æ ã©ã“ã‹ã—らã‹ã‚‰å…¥æ‰‹ã—ãŸapkãŒã‚ã‚‹ã¨ã™ã‚‹ã€‚ android sdkã®platform-toolsã«pathを通ã—ã¦ã‚る。 apktoolã‹ã‚‰ä»¥ä¸‹ã®2ã¤ã®ãƒ•ã‚¡ã‚¤ãƒ«ã‚’ダウンãƒãƒ¼ãƒ‰ã—ã¦ãる。 ・apktool1.5.2.tar.bz2(2013/11/19時点) ・apktool-install-linux-r05-ibot.tar.bz2(2013/11/19時点) 2ã¤ã®ãƒ•ã‚¡ã‚¤ãƒ«ã‚’解å‡ã™ã‚‹ã€‚ $bzip2 -dc apktool1.5.2.tar.bz2 | tar xvf - $bzip2 -dc apktool-install-linux-r05-ibot.tar.bz2 | tar xvf - ãã‚Œãžã‚Œãƒ‡ã‚£ãƒ¬ã‚¯ãƒˆãƒªæ§‹æˆã¯ã€ ・apktool /apktool1.5.2/apktool.jar ・apktool-install-linux-r05-ibot /apktool-ins
リリースã€éšœå®³æƒ…å ±ãªã©ã®ã‚µãƒ¼ãƒ“スã®ãŠçŸ¥ã‚‰ã›
最新ã®äººæ°—エントリーã®é…ä¿¡
j次ã®ãƒ–ックマーク
kå‰ã®ãƒ–ックマーク
lã‚ã¨ã§èªã‚€
eコメント一覧を開ã
oページを開ã
Guide to app architecture  | Android Developers
Android 12 Compatibility Definition  | Android Open Source Project
For Sale Domain: mbcdev.com
Getting Started · Installing the Android Development Environment
https://jp.techcrunch.com/2014/11/04/20141103microsoft-now-lets-developers-run-ie-on-android-ios-and-os-x/
AsyncTaskを継承ã—ã¦ã‚‹ã‚¯ãƒ©ã‚¹ã§ã®staticメソッド呼ã³å‡ºã—ã®ç½ 
{{#tags}}- {{label}}
{{/tags}}