{"id":1202,"date":"2025-05-05T13:20:03","date_gmt":"2025-05-05T04:20:03","guid":{"rendered":"https:\/\/itstudy365.com\/blog\/?p=1202"},"modified":"2025-05-24T11:43:55","modified_gmt":"2025-05-24T02:43:55","slug":"activity%e3%81%a8%e3%83%a9%e3%82%a4%e3%83%95%e3%82%b5%e3%82%a4%e3%82%af%e3%83%ab%e3%81%ae%e6%a6%82%e5%bf%b5","status":"publish","type":"post","link":"https:\/\/itstudy365.com\/blog\/2025\/05\/05\/activity%e3%81%a8%e3%83%a9%e3%82%a4%e3%83%95%e3%82%b5%e3%82%a4%e3%82%af%e3%83%ab%e3%81%ae%e6%a6%82%e5%bf%b5\/","title":{"rendered":"Android application development \u7b2c4\u7ae0\uff1aActivity\u3068\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u306e\u6982\u5ff5"},"content":{"rendered":"\n<button id=\"bb1\" type=\"button\" value=\"Play\" class=\"responsivevoice-button\" title=\"ResponsiveVoice Tap to Start\/Stop Speech\"><span>&#128266; Play<\/span><\/button>\n        <script>\n            bb1.onclick = function(){\n                if(responsiveVoice.isPlaying()){\n                    responsiveVoice.cancel();\n                }else{\n                    responsiveVoice.speak(\"Android\u30a2\u30d7\u30ea\u958b\u767a\u3067\u306f\u3001Activity\uff08\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\uff09 \u3068\u3044\u3046\u30af\u30e9\u30b9\u304c\u975e\u5e38\u306b\u91cd\u8981\u306a\u5f79\u5272\u3092\u62c5\u3044\u307e\u3059\u3002Java\u3067\u8a00\u3048\u3070\u300c\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e1\u3064\u306e\u201c\u753b\u9762\u201d\u306b\u76f8\u5f53\u3059\u308b\u30af\u30e9\u30b9\u300d\u3068\u8003\u3048\u3066\u304f\u3060\u3055\u3044\u3002 \u25a0 Activity\u3068\u306f\uff1f Activity\u306f\u3001Android\u30a2\u30d7\u30ea\u3067 \u30e6\u30fc\u30b6\u30fc\u304c\u64cd\u4f5c\u3059\u308b1\u3064\u306eUI\u753b\u9762 \u3092\u8868\u3059\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3067\u3059\u3002\u4f8b\u3048\u3070\u3001\u6b21\u306e\u3088\u3046\u306a\u3082\u306e\u304c\u305d\u308c\u305e\u308c1\u3064\u306eActivity\u3068\u3057\u3066\u5b9f\u88c5\u3055\u308c\u307e\u3059\uff1a \u30a2\u30d7\u30ea\u3092\u8d77\u52d5\u3057\u305f\u3068\u304d\u306b\u8868\u793a\u3055\u308c\u308b\u30db\u30fc\u30e0\u753b\u9762 \u30ed\u30b0\u30a4\u30f3\u753b\u9762 \u5546\u54c1\u4e00\u89a7\u3084\u8a73\u7d30\u30da\u30fc\u30b8 public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); } } \u4e0a\u8a18\u306e\u3088\u3046\u306b\u3001Activity\u306f AppCompatActivity \u3092\u7d99\u627f\u3057\u3001onCreate() \u30e1\u30bd\u30c3\u30c9\u306e\u4e2d\u3067UI\u3092\u8a2d\u5b9a\u3059\u308b\u306e\u304c\u57fa\u672c\u5f62\u3067\u3059\u3002\u3053\u3053\u3067\u3044\u3046 setContentView() \u306b\u3088\u3063\u3066\u3001XML\u30ec\u30a4\u30a2\u30a6\u30c8\u3068Activity\u306e\u7d10\u4ed8\u3051\u3092\u884c\u3044\u307e\u3059\u3002 \u25a0 \u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u3068\u306f\uff1f Activity\u306f\u305f\u30601\u5ea6\u3060\u3051\u5b9f\u884c\u3055\u308c\u3066\u7d42\u4e86\u3059\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u30e6\u30fc\u30b6\u30fc\u304c\u5225\u306e\u753b\u9762\u306b\u79fb\u52d5\u3057\u305f\u308a\u3001\u7aef\u672b\u3092\u56de\u8ee2\u3055\u305b\u305f\u308a\u3001\u30a2\u30d7\u30ea\u3092\u30d0\u30c3\u30af\u30b0\u30e9\u30a6\u30f3\u30c9\u306b\u3057\u305f\u308a\u3059\u308b\u3068\u3001\u81ea\u52d5\u7684\u306b\u72b6\u614b\u304c\u5909\u5316\u3057\u3001\u305d\u308c\u306b\u5fdc\u3058\u3066Android\u304c\u7279\u5b9a\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3057\u307e\u3059\u3002 \u3053\u308c\u304c Activity\u306e\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\uff08\u751f\u5b58\u671f\u9593\uff09 \u3067\u3059\u3002 \u25a0 \u4e3b\u306a\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u30e1\u30bd\u30c3\u30c9 \u30e1\u30bd\u30c3\u30c9\u30bf\u30a4\u30df\u30f3\u30b0\u5f79\u5272onCreate()\u521d\u56de\u751f\u6210\u6642\u521d\u671f\u5316\u51e6\u7406\uff08UI\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u306a\u3069\uff09onStart()\u8868\u793a\u76f4\u524dUI\u306e\u8868\u793a\u6e96\u5099onResume()\u30e6\u30fc\u30b6\u30fc\u64cd\u4f5c\u53ef\u80fd\u306b\u306a\u308b\u76f4\u524d\u30a2\u30af\u30c6\u30a3\u30d6\u72b6\u614bonPause()\u4ed6\u306e\u753b\u9762\u306b\u9077\u79fb\u3059\u308b\u3068\u304d\u4e00\u6642\u505c\u6b62\uff08\u97f3\u697d\u505c\u6b62\u306a\u3069\uff09onStop()\u5b8c\u5168\u306b\u975e\u8868\u793a\u306b\u306a\u308b\u6642\u30ea\u30bd\u30fc\u30b9\u89e3\u653e\u3001\u4fdd\u5b58\u306a\u3069onDestroy()\u5b8c\u5168\u306b\u7834\u68c4\u3055\u308c\u308b\u76f4\u524d\u6700\u7d42\u7684\u306a\u30af\u30ea\u30fc\u30f3\u30a2\u30c3\u30d7 \u25a0 \u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u304c\u91cd\u8981\u306a\u7406\u7531 Android\u306f\u30e1\u30e2\u30ea\u304c\u9650\u3089\u308c\u3066\u3044\u308b\u305f\u3081\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066Activity\u3092\u7834\u68c4\u30fb\u518d\u751f\u6210\u3057\u307e\u3059\u3002\u4f8b\u3048\u3070\u753b\u9762\u56de\u8ee2\u3092\u3059\u308b\u3068 onDestroy() \u2192 onCreate() \u3068\u547c\u3070\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002 \u3053\u306e\u305f\u3081\u3001\u6b21\u306e\u3088\u3046\u306a\u8003\u616e\u304c\u5fc5\u8981\u3067\u3059\uff1a onSaveInstanceState() \u3092\u4f7f\u3063\u3066\u4e00\u6642\u30c7\u30fc\u30bf\u3092\u4fdd\u5b58\u3059\u308b UI\u521d\u671f\u5316\u3084\u30ea\u30b9\u30ca\u30fc\u767b\u9332\u306f onCreate() \u3084 onStart() \u306b\u96c6\u4e2d\u3055\u305b\u308b \u518d\u958b\u6642\u306e\u518d\u63cf\u753b\u3084\u30ea\u30b9\u30ca\u30fc\u518d\u767b\u9332\u306f onResume() \u306b\u4efb\u305b\u308b \u25a0 \u307e\u3068\u3081\uff1aJava\u306emain\u30e1\u30bd\u30c3\u30c9\u3068\u306f\u8003\u3048\u65b9\u304c\u7570\u306a\u308b Java\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306f main() \u304c\u59cb\u70b9\u3067\u3042\u308a\u3001\u7d42\u4e86\u3059\u308b\u307e\u3067\u6d41\u308c\u306f\u6bd4\u8f03\u7684\u56fa\u5b9a\u3067\u3059\u304c\u3001Android\u306eActivity\u306f\u300c\u72b6\u614b\u304c\u5909\u308f\u308b\u305f\u3073\u306b\u518d\u5ea6\u201c\u547c\u3070\u308c\u308b\u201d\u300d\u69cb\u9020\u3067\u3059\u3002 \u3053\u306e\u201c\u547c\u3070\u308c\u308b\u201d\u69cb\u9020\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u753b\u9762\u9077\u79fb\u3084\u72b6\u614b\u4fdd\u5b58\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u6700\u9069\u5316\u304c\u30b9\u30e0\u30fc\u30ba\u306b\u306a\u308a\u307e\u3059\u3002\", \"Japanese Female\");\n                }\n            };\n        <\/script>\n    <\/p>\n\n\n\n<p>Android\u30a2\u30d7\u30ea\u958b\u767a\u3067\u306f\u3001<strong>Activity\uff08\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\uff09<\/strong> \u3068\u3044\u3046\u30af\u30e9\u30b9\u304c\u975e\u5e38\u306b\u91cd\u8981\u306a\u5f79\u5272\u3092\u62c5\u3044\u307e\u3059\u3002Java\u3067\u8a00\u3048\u3070\u300c\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e1\u3064\u306e\u201c\u753b\u9762\u201d\u306b\u76f8\u5f53\u3059\u308b\u30af\u30e9\u30b9\u300d\u3068\u8003\u3048\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u25a0 Activity\u3068\u306f\uff1f<\/h3>\n\n\n\n<p>Activity\u306f\u3001Android\u30a2\u30d7\u30ea\u3067 <strong>\u30e6\u30fc\u30b6\u30fc\u304c\u64cd\u4f5c\u3059\u308b1\u3064\u306eUI\u753b\u9762<\/strong> \u3092\u8868\u3059\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3067\u3059\u3002\u4f8b\u3048\u3070\u3001\u6b21\u306e\u3088\u3046\u306a\u3082\u306e\u304c\u305d\u308c\u305e\u308c1\u3064\u306eActivity\u3068\u3057\u3066\u5b9f\u88c5\u3055\u308c\u307e\u3059\uff1a<\/p>\n\n\n\n<ul>\n<li>\u30a2\u30d7\u30ea\u3092\u8d77\u52d5\u3057\u305f\u3068\u304d\u306b\u8868\u793a\u3055\u308c\u308b\u30db\u30fc\u30e0\u753b\u9762<\/li>\n\n\n\n<li>\u30ed\u30b0\u30a4\u30f3\u753b\u9762<\/li>\n\n\n\n<li>\u5546\u54c1\u4e00\u89a7\u3084\u8a73\u7d30\u30da\u30fc\u30b8<\/li>\n<\/ul>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-csharp\" data-lang=\"C#\"><code>public class MainActivity extends AppCompatActivity {\n    @Override\n    protected void onCreate(Bundle savedInstanceState) {\n        super.onCreate(savedInstanceState);\n        setContentView(R.layout.activity_main);\n    }\n}<\/code><\/pre><\/div>\n\n\n\n<p>\u4e0a\u8a18\u306e\u3088\u3046\u306b\u3001Activity\u306f <code>AppCompatActivity<\/code> \u3092\u7d99\u627f\u3057\u3001<code>onCreate()<\/code> \u30e1\u30bd\u30c3\u30c9\u306e\u4e2d\u3067UI\u3092\u8a2d\u5b9a\u3059\u308b\u306e\u304c\u57fa\u672c\u5f62\u3067\u3059\u3002\u3053\u3053\u3067\u3044\u3046 <code>setContentView()<\/code> \u306b\u3088\u3063\u3066\u3001XML\u30ec\u30a4\u30a2\u30a6\u30c8\u3068Activity\u306e\u7d10\u4ed8\u3051\u3092\u884c\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u25a0 \u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u3068\u306f\uff1f<\/h3>\n\n\n\n<p>Activity\u306f\u305f\u30601\u5ea6\u3060\u3051\u5b9f\u884c\u3055\u308c\u3066\u7d42\u4e86\u3059\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u30e6\u30fc\u30b6\u30fc\u304c\u5225\u306e\u753b\u9762\u306b\u79fb\u52d5\u3057\u305f\u308a\u3001\u7aef\u672b\u3092\u56de\u8ee2\u3055\u305b\u305f\u308a\u3001\u30a2\u30d7\u30ea\u3092\u30d0\u30c3\u30af\u30b0\u30e9\u30a6\u30f3\u30c9\u306b\u3057\u305f\u308a\u3059\u308b\u3068\u3001<strong>\u81ea\u52d5\u7684\u306b\u72b6\u614b\u304c\u5909\u5316\u3057\u3001\u305d\u308c\u306b\u5fdc\u3058\u3066Android\u304c\u7279\u5b9a\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3057\u307e\u3059<\/strong>\u3002<\/p>\n\n\n\n<p>\u3053\u308c\u304c <strong>Activity\u306e\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\uff08\u751f\u5b58\u671f\u9593\uff09<\/strong> \u3067\u3059\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u25a0 \u4e3b\u306a\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u30e1\u30bd\u30c3\u30c9<\/h3>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><thead><tr><th>\u30e1\u30bd\u30c3\u30c9<\/th><th>\u30bf\u30a4\u30df\u30f3\u30b0<\/th><th>\u5f79\u5272<\/th><\/tr><\/thead><tbody><tr><td><code>onCreate()<\/code><\/td><td>\u521d\u56de\u751f\u6210\u6642<\/td><td>\u521d\u671f\u5316\u51e6\u7406\uff08UI\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u306a\u3069\uff09<\/td><\/tr><tr><td><code>onStart()<\/code><\/td><td>\u8868\u793a\u76f4\u524d<\/td><td>UI\u306e\u8868\u793a\u6e96\u5099<\/td><\/tr><tr><td><code>onResume()<\/code><\/td><td>\u30e6\u30fc\u30b6\u30fc\u64cd\u4f5c\u53ef\u80fd\u306b\u306a\u308b\u76f4\u524d<\/td><td>\u30a2\u30af\u30c6\u30a3\u30d6\u72b6\u614b<\/td><\/tr><tr><td><code>onPause()<\/code><\/td><td>\u4ed6\u306e\u753b\u9762\u306b\u9077\u79fb\u3059\u308b\u3068\u304d<\/td><td>\u4e00\u6642\u505c\u6b62\uff08\u97f3\u697d\u505c\u6b62\u306a\u3069\uff09<\/td><\/tr><tr><td><code>onStop()<\/code><\/td><td>\u5b8c\u5168\u306b\u975e\u8868\u793a\u306b\u306a\u308b\u6642<\/td><td>\u30ea\u30bd\u30fc\u30b9\u89e3\u653e\u3001\u4fdd\u5b58\u306a\u3069<\/td><\/tr><tr><td><code>onDestroy()<\/code><\/td><td>\u5b8c\u5168\u306b\u7834\u68c4\u3055\u308c\u308b\u76f4\u524d<\/td><td>\u6700\u7d42\u7684\u306a\u30af\u30ea\u30fc\u30f3\u30a2\u30c3\u30d7<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" loading=\"lazy\" width=\"347\" height=\"815\" src=\"https:\/\/itstudy365.com\/blog\/wp-content\/uploads\/2025\/05\/image-1.png\" alt=\"\" class=\"wp-image-1204\" srcset=\"https:\/\/itstudy365.com\/blog\/wp-content\/uploads\/2025\/05\/image-1.png 347w, https:\/\/itstudy365.com\/blog\/wp-content\/uploads\/2025\/05\/image-1-128x300.png 128w\" sizes=\"(max-width: 347px) 100vw, 347px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u25a0 \u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u304c\u91cd\u8981\u306a\u7406\u7531<\/h3>\n\n\n\n<p>Android\u306f\u30e1\u30e2\u30ea\u304c\u9650\u3089\u308c\u3066\u3044\u308b\u305f\u3081\u3001<strong>\u5fc5\u8981\u306b\u5fdc\u3058\u3066Activity\u3092\u7834\u68c4\u30fb\u518d\u751f\u6210<\/strong>\u3057\u307e\u3059\u3002\u4f8b\u3048\u3070\u753b\u9762\u56de\u8ee2\u3092\u3059\u308b\u3068 <code>onDestroy()<\/code> \u2192 <code>onCreate()<\/code> \u3068\u547c\u3070\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u305f\u3081\u3001\u6b21\u306e\u3088\u3046\u306a\u8003\u616e\u304c\u5fc5\u8981\u3067\u3059\uff1a<\/p>\n\n\n\n<ul>\n<li><code>onSaveInstanceState()<\/code> \u3092\u4f7f\u3063\u3066\u4e00\u6642\u30c7\u30fc\u30bf\u3092\u4fdd\u5b58\u3059\u308b<\/li>\n\n\n\n<li>UI\u521d\u671f\u5316\u3084\u30ea\u30b9\u30ca\u30fc\u767b\u9332\u306f <code>onCreate()<\/code> \u3084 <code>onStart()<\/code> \u306b\u96c6\u4e2d\u3055\u305b\u308b<\/li>\n\n\n\n<li>\u518d\u958b\u6642\u306e\u518d\u63cf\u753b\u3084\u30ea\u30b9\u30ca\u30fc\u518d\u767b\u9332\u306f <code>onResume()<\/code> \u306b\u4efb\u305b\u308b<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u25a0 \u307e\u3068\u3081\uff1aJava\u306emain\u30e1\u30bd\u30c3\u30c9\u3068\u306f\u8003\u3048\u65b9\u304c\u7570\u306a\u308b<\/h3>\n\n\n\n<p>Java\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306f <code>main()<\/code> 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