{"id":1409,"date":"2020-11-24T19:40:17","date_gmt":"2020-11-24T10:40:17","guid":{"rendered":"https:\/\/bunktiruu.com\/?p=1409"},"modified":"2021-10-08T16:03:09","modified_gmt":"2021-10-08T07:03:09","slug":"%e3%80%90%e3%82%b9%e3%83%86%e3%83%83%e3%83%97%e3%83%90%e3%82%a4%e3%82%b9%e3%83%86%e3%83%83%e3%83%97%e3%81%a7%e5%ad%a6%e3%81%b6%e3%80%91android%e3%82%a2%e3%83%97%e3%83%aa%ef%bc%9a%e5%9b%b3%e5%bd%a2","status":"publish","type":"post","link":"https:\/\/bunktiruu.com\/?p=1409","title":{"rendered":"\u3010Android\u30a2\u30d7\u30ea\u958b\u767a\u3011\u30b9\u30c6\u30c3\u30d7\u30d0\u30a4\u30b9\u30c6\u30c3\u30d7\u3067\u5b66\u3076\u3000\u7b2c\u4e00\u56de\uff1a\u56f3\u5f62\u63cf\u753b\u7de8"},"content":{"rendered":"\n<p>\u3053\u3093\u306b\u3061\u306f\u3001\u30b3\u30f3\u30c6\u30f3\u30c4\u30af\u30ea\u30a8\u30a4\u30bf\u30fc\u306e\u3068\u3082\u3059\u3051\u3067\u3059\u3002<\/p>\n\n\n\n<p>\uff08\u3054\u3081\u3093\u306a\u3055\u3044\u306d\u3001\u7d9a\u304d\u304c\u306a\u304f\u3066\u3002\u3053\u3046\u3044\u3046\u306e\u3092\u4f01\u753b\u5012\u308c\u3068\u3044\u3044\u307e\u3059\u2026\u3002\u3067\u3082\u3001\u305d\u306e\u3046\u3061\u7d9a\u304d\u3092\u4f5c\u308a\u305f\u3044\u3067\u3059\uff09<\/p>\n\n\n\n<p><span class=\"ystdb-inline--1\">\u300c\u30b9\u30c6\u30c3\u30d7\u30d0\u30a4\u30b9\u30c6\u30c3\u30d7\u3067\u5b66\u3076\u300d\u30b7\u30ea\u30fc\u30ba\u3092\u59cb\u3081\u307e\u3059<\/span>\u3002\u3053\u306e\u30b7\u30ea\u30fc\u30ba\u306f\u3001\u3044\u304d\u306a\u308a\u30ae\u30e5\u30c3\u3068\u8a70\u3081\u8fbc\u3093\u3060\u8a71\u3092\u3057\u306a\u3044\uff08\u3064\u3082\u308a\uff09\u3067\u3001\u7b2c\u4e00\u6bb5\u968e\u3001\u7b2c\u4e8c\u6bb5\u968e\u2026\u3068\u9806\u306b\u9032\u3081\u3066\u3044\u304d\u3001\u8a66\u3057\u306a\u304c\u3089\u7406\u89e3\u5ea6\u3092\u6df1\u3081\u3066\u3044\u305f\u3060\u3053\u3046\u3068\u3044\u3046\u30b7\u30ea\u30fc\u30ba\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u30b3\u30fc\u30c9\u306f\u30b3\u30d4\u30da\u3067\u52d5\u304d\u307e\u3059\u3002\u5404\u30b9\u30c6\u30c3\u30d7\u306e\u30b3\u30fc\u30c9\u306f\u300c\u5358\u4f53\u300d\u3067\u52d5\u304d\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u4ee5\u4e0b\u306f\u3054\u81ea\u5206\u3067\u5bfe\u5fdc\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Android Studio\u3067\u3001\u9069\u5f53\u306a\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3092\u81ea\u5206\u3067\u4f5c\u6210\u3059\u308b<\/li><li>\u4f5c\u6210\u3057\u305f\u3089\u3001\u3072\u306a\u5f62\u306eMainActivity.java\u304c\u751f\u6210\u3055\u308c\u3066\u3044\u308b\u306f\u305a\u306a\u306e\u3067\u3001\u305d\u306e\u300c\uff11\u884c\u76ee\u300d\u4ee5\u5916\u3092\u524a\u9664\u3057\u3066\u4ee5\u4e0b\u306b\u63b2\u8f09\u3057\u305f\u30b3\u30fc\u30c9\u3092\u8cbc\u308a\u4ed8\u3051\u308b<\/li><li>Run\u30dc\u30bf\u30f3\u3092\u62bc\u3057\u3066\u3001AVD\uff08Android Virtual Device\uff09\u3082\u3057\u304f\u306f\u81ea\u524d\u306eAndroid\u7aef\u672b\u306b\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b<\/li><\/ul>\n\n\n\n<p>\u2191\u306e\u5185\u5bb9\u304c\u308f\u304b\u3089\u306a\u3044\u65b9\u306f\u3001\u3053\u306e\u8a18\u4e8b\u3067\u306f\u30b5\u30dd\u30fc\u30c8\u3067\u304d\u307e\u305b\u3093\u304c\u3001\u5225\u8a18\u4e8b\u3067\u8aac\u660e\u3067\u304d\u308c\u3070\u826f\u3044\u306a\u3041\u3068\u601d\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u306e\u8a18\u4e8b\u306e\u5143\u306f\u3001<a href=\"https:\/\/sites.google.com\/site\/androiddevnote\/05-o-huikakiapuri\/01-miao-huawo-shisu\" target=\"_blank\" rel=\"noreferrer noopener\">\u307c\u304f\u304cGoogle\u30b5\u30a4\u30c8\u3067\u516c\u958b\u3057\u3066\u3044\u308b\u30e2\u30ce<\/a>\u306a\u306e\u3067\u3059\u304c\u3001\u30b3\u30fc\u30c9\u304c\u898b\u3065\u3089\u3044\u306e\u3067\u4fee\u6b63\u3057\u3066\u66f4\u65b0\u3057\u3088\u3046\u3068\u3059\u308b\u3068\u3001<span class=\"ystdb-inline--3\">Google\u304c\u300c\u5909\u66f4\u5dee\u5206\u304c\u306a\u3044\u300d\u3068\u52d8\u9055\u3044\u3057\u3066\u4e0a\u3052\u3089\u308c\u306a\u304f<\/span>\u3066\u3001\u4ed5\u65b9\u306a\u304f\u5c11\u3057\u305a\u3064\u3053\u3061\u3089\u3078\u5f15\u3063\u8d8a\u305d\u3046\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u56f3\u5f62\u63cf\u753b\u306b\u3064\u3044\u3066<\/h2>\n\n\n\n<p>\u77e5\u3063\u3066\u3044\u308b\u7bc4\u56f2\u3067\u306f\u3001\u63cf\u753b\u306b\u306f\uff12\u901a\u308a\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"ystdtb-icon-list icon--check-circle is-bold has-ys-orange-icon-font-color has-icon-font-color\"><li>1. View\u30af\u30e9\u30b9\u3092\u4f7f\u3046\u65b9\u6cd5<\/li><li>2. SurfaceView\u30af\u30e9\u30b9\u3092\u4f7f\u3046\u65b9\u6cd5<\/li><\/ul>\n\n\n\n<p>\u9ad8\u901f\u306a\u63cf\u753b\u51e6\u7406\u3092\u884c\u3044\u305f\u3044\u5834\u5408\u306f\uff12\u756a\u3092\u3001\u305d\u308c\u4ee5\u5916\u306f\uff11\u756a\u3092\u4f7f\u3046\u306e\u304c\u3044\u3044\u3088\u3046\u3067\u3059\u3002\u4eca\u56de\u306f\u304a\u7d75\u304b\u304d\u3092\u30bf\u30fc\u30b2\u30c3\u30c8\u3068\u3057\u3066\u3044\u308b\u306e\u3067\u3001\uff11\u756a\u306eView\u30af\u30e9\u30b9\u3092\u4f7f\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30b9\u30c6\u30c3\u30d7\uff11\uff0eView\u306e\u57fa\u672c<\/h2>\n\n\n\n<p>View\u306f\u3001\u6587\u5b57\u3092\u66f8\u3044\u305f\u308a\u3001\u7dda\u3092\u66f8\u3044\u305f\u308a\u3001\u5857\u308a\u3064\u3076\u3057\u305f\u308a\u3059\u308b\u3053\u3068\u306e\u3067\u304d\u308b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3067\u3059\u3002View\u30af\u30e9\u30b9\u3092\u7d99\u627f\u3057\u305fclass\u3092\u5b9a\u7fa9\uff08\u3053\u3053\u3067\u306fCustomView\uff09\u3057\u3066<\/p>\n\n\n\n<ul class=\"ystdtb-icon-list icon--check-circle has-ys-orange-icon-font-color has-icon-font-color\"><li>1. \u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\uff08\u203b\uff11\uff09\u306e\u4e2d\u3067\u80cc\u666f\u8272\uff08\u3053\u3053\u3067\u306f\u767d\uff09\u3092\u5b9a\u7fa9<\/li><li>2. <strong>onDraw<\/strong>\u30e1\u30bd\u30c3\u30c9\u3092\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3059\u308b\u8a18\u8ff0\u306e\u4e2d\u3067\u3001\u66f8\u304d\u8fbc\u307f\u60c5\u5831\u683c\u7d0d\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\uff08<strong>paint<\/strong>\uff09\u3092\u7528\u610f<\/li><li>3. \u305d\u3053\u306b\u5c5e\u6027\uff08\u30a2\u30f3\u30c1\u30a8\u30a4\u30ea\u30a2\u30b9\u3001\u6587\u5b57\u306e\u5927\u304d\u3055\u3001\u8272\uff09\u3092\u30bb\u30c3\u30c8<\/li><li>4. <strong>canvas<\/strong>\u306b\u66f8\u304d\u8fbc\u307f\u307e\u3059<\/li><\/ul>\n\n\n\n<p>\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u4f8b\u3067\u306f\u3001<\/p>\n\n\n\n<ul class=\"ystdtb-icon-list icon--check-circle has-ys-orange-icon-font-color has-icon-font-color\"><li>\u30c6\u30ad\u30b9\u30c8<\/li><li>\u76f4\u7dda<\/li><li>\u56db\u89d2\u5f62\uff08\u5857\u308a\u3064\u3076\u3057\uff09<\/li><li>\u5186<\/li><\/ul>\n\n\n\n<p class=\"font-family :'Dosis'\">\u3092\u63cf\u753b\u3057\u3066\u3044\u307e\u3059\u3002<strong>setStyle<\/strong>\u3084<strong>setColor<\/strong>\u306f\u3001\u540c\u3058\u3067\u3042\u308c\u3070\u518d\u8a2d\u5b9a\u305b\u305a\u306b<strong>canvas<\/strong>\u3078\u66f8\u304d\u8fbc\u307f\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<pre title=\"MainActivity.java\" class=\"wp-block-code font-family :'Dosis'\"><code lang=\"java\" class=\"language-java\">import androidx.appcompat.app.AppCompatActivity;\n\nimport android.content.Context;\nimport android.graphics.Canvas;\nimport android.graphics.Color;\nimport android.graphics.Paint;\nimport android.os.Bundle;\nimport android.view.View;\nimport android.view.Window;\n\npublic class MainActivity extends AppCompatActivity {\n    @Override\n    protected void onCreate(Bundle savedInstanceState) {\n        super.onCreate(savedInstanceState);\n        requestWindowFeature(Window.FEATURE_NO_TITLE);\n        setContentView(new CustomView(this));\n    }\n\n    class CustomView extends View {\n        public CustomView(Context context) {\n            super(context);\n            setBackgroundColor(Color.WHITE);\n        }\n        @Override\n        protected void onDraw(Canvas canvas){\n            Paint paint = new Paint();\n            \/\/ \u30c6\u30ad\u30b9\u30c8\u66f8\u304d\u8fbc\u307f\n            paint.setAntiAlias(true);\n            paint.setTextSize(24);\n            paint.setColor(Color.rgb(0, 0, 0));\n            canvas.drawText(\"\u3069\u308d\u30fc\u3066\u304d\u3059\u3068\", 0, 60, paint);\n            \/\/ \u30e9\u30a4\u30f3\u306e\u66f8\u304d\u8fbc\u307f\n            paint.setStrokeWidth(1);\n            paint.setStyle(Paint.Style.STROKE);\n            paint.setColor(Color.BLUE);\n            canvas.drawLine(0, 100, 100, 200, paint);\n            \/\/ \u56db\u89d2\u5f62\u306e\u63cf\u753b\uff08\u5857\u308a\u3064\u3076\u3057\uff09\n            paint.setStyle(Paint.Style.FILL);\n            paint.setColor(Color.GREEN);\n            canvas.drawRect(0, 200, 100, 300, paint);\n            \/\/ \u5186\u306e\u63cf\u753b\uff08\u7dda\uff09\n            paint.setStyle(Paint.Style.STROKE);\n            paint.setColor(Color.RED);\n            canvas.drawCircle(50, 350, 50, paint);\n        }\n    }\n}<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u30b9\u30c6\u30c3\u30d7\uff12\uff0e\u30bf\u30c3\u30c1\u64cd\u4f5c\u3067\u66f8\u304d\u8fbc\u307f<\/h2>\n\n\n\n<p>\u3067\u306f\u3055\u3063\u305d\u304f\u3001\u30bf\u30c3\u30c1\u64cd\u4f5c\u3067\u66f8\u304d\u8fbc\u307f\u3057\u3066\u307f\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002\u753b\u9762\u3092\u30bf\u30c3\u30c1\u3059\u308b\u3068\u3001\u305d\u306e\u5ea7\u6a19\u3092\u53d6\u5f97\u3067\u304d\u307e\u3059\u3002\uff11\u5ea7\u6a19\u3060\u3051\u306a\u3089\u4e0a\u8a18\u4f8b\u306e\u901a\u308a\u3001drawText\u3084drawCircle\u3067\u66f8\u3051\u307e\u3059\u3002\u3084\u3063\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<ul class=\"ystdtb-icon-list icon--check-circle has-ys-orange-icon-font-color has-icon-font-color\"><li>class Pointer\u306f\u3001\u753b\u9762\u3092\u30bf\u30c3\u30c1\u3059\u308b\u3068\u547c\u3073\u51fa\u3055\u308c\u308b <strong>onTouchEvent<\/strong> \u30e1\u30bd\u30c3\u30c9\u306e\u4e2d\u3067\u3001\u30bf\u30c3\u30c1\u3057\u305f\u5ea7\u6a19\u3092\u4fdd\u6301\u3057\u3066 <strong>onDraw<\/strong> \u5074\u306b\u6e21\u3059\u305f\u3081\u306e\u30af\u30e9\u30b9\u3067\u3059\u3002\u5ea7\u6a19\u60c5\u5831\u306f\u6d6e\u52d5\u5c0f\u6570\u3067\u53d7\u3051\u53d6\u308b\u306e\u3067\u3001\u30af\u30e9\u30b9\u306e\u30e1\u30f3\u30d0\u3082 float \u3067\u3059\u3002<\/li><li>onTouchEvent\u30e1\u30bd\u30c3\u30c9\u3067\u306f\u3001<strong>MotionEvent<\/strong>\u304b\u3089<span class=\"ystdb-inline--3\">\u300c\u6307\u3092\u52d5\u304b\u3057\u305f\u300d<\/span>\u6761\u4ef6\u3067\u306e\u307f\u5ea7\u6a19\u3092\u53d6\u308a\u51fa\u3057\u3066\u3044\u307e\u3059\u3002return\u3059\u308b\u524d\u306b<strong>invalidate()<\/strong>\u3057\u3066\u3044\u308b\u306e\u306f\u3001<strong>invalidate()<\/strong>\u3092\u53e9\u304f\u3068<strong>onDraw<\/strong>\u304c\u547c\u3073\u51fa\u3055\u308c\u308b\u304b\u3089\u3067\u3059\u3002<strong>invalidate()<\/strong>\u3057\u3066\u3042\u3052\u308b\u3053\u3068\u3067\u3001<span class=\"ystdb-inline--3\">\u610f\u56f3\u7684\u306bAndroid\u306b\u753b\u9762\u3092\u66f4\u65b0<\/span>\u3055\u305b\u3066\u3044\u307e\u3059\u3002<\/li><li>\u3053\u306e\u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3059\u308b\u3068\u308f\u304b\u308b\u306e\u3067\u3059\u304c\u3001\u5c0f\u3055\u306a\u4e38\u304c\u52d5\u304f\u3051\u308c\u3069\u3082\u300c\u8ecc\u8de1\u300d\u304c\u6b8b\u308a\u307e\u305b\u3093\u3002\u3053\u308c\u306f\u3001<span class=\"ystdb-inline--3\">onDraw\u6642\u306b\u753b\u9762\u3092\u30a4\u30c1\u304b\u3089\u66f4\u65b0\u3059\u308b\u305f\u3081<\/span>\u3067\u3059\u3002\u524d\u306e\u753b\u9762\u3092\u4e0a\u66f8\u304d\u3057\u3066\u304f\u308c\u307e\u305b\u3093\u3002<\/li><\/ul>\n\n\n\n<pre title=\"MainActivity.java\" class=\"wp-block-code\"><code lang=\"java\" class=\"language-java\">import android.content.Context;\nimport android.graphics.Canvas;\nimport android.graphics.Color;\nimport android.graphics.Paint;\nimport android.os.Bundle;\nimport android.view.MotionEvent;\nimport android.view.View;\nimport android.view.Window;\n\nimport androidx.appcompat.app.AppCompatActivity;\n\npublic class MainActivity extends AppCompatActivity {\n    @Override\n    protected void onCreate(Bundle savedInstanceState) {\n        super.onCreate(savedInstanceState);\n        requestWindowFeature(Window.FEATURE_NO_TITLE);\n        setContentView(new CustomView(this));\n    }\n    class Pointer {\n        float x,y;\n        public Pointer(float x, float y){\n            this.x = x;\n            this.y = y;\n        }\n    }\n    class CustomView extends View {\n        protected Pointer pointer = null;\n        public CustomView(Context context) {\n            super(context);\n            setBackgroundColor(Color.WHITE);\n        }\n        @Override\n        protected void onDraw(Canvas canvas){\n            Paint paint = new Paint();\n            \/\/ \u5186\u306e\u63cf\u753b\uff08\u7dda\uff09\n            paint.setStyle(Paint.Style.STROKE);\n            paint.setColor(Color.RED);\n            if(pointer!=null){\n                canvas.drawCircle(pointer.x, pointer.y, 30, paint);\n            }\n        }\n        @Override\n        public boolean onTouchEvent(MotionEvent event){\n            int action = event.getAction();\n            switch(action &amp; MotionEvent.ACTION_MASK){\n                case MotionEvent.ACTION_MOVE:\n                    pointer = new Pointer(event.getX(), event.getY());\n            }\n            invalidate();\n            return true;\n        }\n    }\n}<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u30b9\u30c6\u30c3\u30d7\uff13\uff0e\u8ecc\u8de1\u3092\u6b8b\u3059<\/h2>\n\n\n\n<p>\u8ecc\u8de1\u3092\u6b8b\u3059\u306b\u306f\u3001\u5ea7\u6a19\u60c5\u5831\u3092\u3059\u3079\u3066\u4fdd\u6301\u3057\u3066\u3001\u5e38\u306b\u3059\u3079\u3066\u518d\u63cf\u753b\u3059\u308b\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002\u3061\u3087\u3063\u3068\u3057\u305f\u304a\u7d75\u304b\u304d\u306a\u3089\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u7684\u306a\u554f\u984c\u3092\u307b\u3068\u3093\u3069\u611f\u3058\u307e\u305b\u3093\u3002\u3067\u3059\u304c\u3001\u3044\u3063\u3071\u3044\u3044\u3063\u3071\u3044\u63cf\u3044\u3066\u3042\u3052\u308b\u3068\u3001\u5ea7\u6a19\u60c5\u5831\u304c\u591a\u3059\u304e\u308b\u305f\u3081\u3001\u51e6\u7406\u304c\u3082\u305f\u3064\u304d\u59cb\u3081\u307e\u3059\u3002\u3053\u306e\u300c\u3082\u305f\u3064\u304f\u300d\u3068\u3053\u308d\u306f\u9762\u767d\u3044\u306e\u3067\u3001\u5b9f\u73fe\u3057\u3066\u307f\u3088\u3046\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u5909\u66f4\u70b9\u3067\u3059\u304c\u3001<\/p>\n\n\n\n<ul class=\"ystdtb-icon-list icon--check-circle has-ys-orange-icon-font-color has-icon-font-color\"><li>\u3059\u3053\u3057\u3060\u3051\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u8003\u616e\u3057\u3066\u3001Paint\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u521d\u671f\u5316\u51e6\u7406\u3092\u6700\u5c0f\u9650\u306b\u3057\u307e\u3057\u305f\u3002(1)<\/li><li>\u5ea7\u6a19\u60c5\u5831\u3092\u4fdd\u6301\u3059\u308b\u305f\u3081\u3001ArrayList\u3092\u7528\u610f\u3057\u307e\u3057\u305f\u3002(2)<ul><li><strong>onDraw<\/strong>\u5185\u3067\u3001ArrayList\u3092\u5c55\u958b\u3059\u308b\u305f\u3081\u306bfor\u6587\u3092\u5165\u308c\u307e\u3057\u305f<\/li><li><strong>onTouchEvent<\/strong>\u3067\u306f\u3001ArrayList\u306b\u5ea7\u6a19\u3092\u8ffd\u52a0\u3059\u308b\u51e6\u7406\u306b\u3057\u3066\u3044\u307e\u3059<\/li><\/ul><\/li><li>\u753b\u9762\u66f4\u65b0\u51e6\u7406\uff08invalidate)\u3092\u3001<strong>ACTION_MOVE<\/strong>\u306e\u3068\u304d\u3060\u3051\u306b\u3057\u307e\u3057\u305f\u3002(3)<ul><li>\u524d\u306e\u30b3\u30fc\u30c9\u3067\u306f\u3001\u753b\u9762\u3092\u89e6\u3063\u305f\u3089\u5fc5\u305ainvalidate\u3057\u3066\u3044\u305f\u306e\u3067\u3001\u4e38\u306e\u8ecc\u8de1\u306f\u5168\u304f\u6b8b\u308a\u307e\u305b\u3093\u3067\u3057\u305f\u304c\u3001\u3053\u306einvalidate\u306e\u4f4d\u7f6e\u3092\u5909\u3048\u308b\u3060\u3051\u3067\u3001\u524d\u306e\u30b3\u30fc\u30c9\u3067\u3082\u300c\u753b\u9762\u3092\u89e6\u3063\u3066\u3044\u308b\u9593\u300d\u3060\u3051\u306a\u3089\u8ecc\u8de1\u304c\u6b8b\u308a\u307e\u3059<\/li><\/ul><\/li><\/ul>\n\n\n\n<p>\u753b\u9762\u306b\u8ecc\u8de1\u304c\u4fdd\u6301\u3055\u308c\u307e\u3059\u304c\u3001\u4f55\u5ea6\u3082\u8ecc\u8de1\u3092\u63cf\u3044\u3066\u3044\u308b\u3068\u3001\u6b21\u7b2c\u306b\u4e38\u306e\u8868\u793a\u901f\u5ea6\u304c\u9045\u304f\u306a\u308b\u3053\u3068\u304c\u308f\u304b\u308b\u3068\u601d\u3044\u307e\u3059\u3002\u9006\u306b\u8a00\u3048\u3070\u3001\u6570\u767e\u500b\u7a0b\u5ea6\u306e\u5ea7\u6a19\u3067\u3042\u308c\u3070\u77ac\u6642\u306b\u63cf\u753b\u3057\u3066\u3057\u307e\u3046\u30d1\u30ef\u30fc\u3092Android\u7aef\u672b\u306f\u6301\u3063\u3066\u3044\u308b\u3053\u3068\u3082\u308f\u304b\u308b\u3068\u601d\u3044\u307e\u3059\u3002\uff08\u7aef\u672b\u306b\u3088\u3063\u3066\u5dee\u7570\u304c\u3042\u308a\u307e\u3059\uff09<\/p>\n\n\n\n<pre title=\"MainActivity.java\" class=\"wp-block-code\"><code lang=\"java\" class=\"language-java\">import android.content.Context;\nimport android.graphics.Canvas;\nimport android.graphics.Color;\nimport android.graphics.Paint;\nimport android.os.Bundle;\nimport android.view.MotionEvent;\nimport android.view.View;\nimport android.view.Window;\n\nimport androidx.appcompat.app.AppCompatActivity;\n\nimport java.util.ArrayList;\n\npublic class MainActivity extends AppCompatActivity {\n    @Override\n    protected void onCreate(Bundle savedInstanceState) {\n        super.onCreate(savedInstanceState);\n        requestWindowFeature(Window.FEATURE_NO_TITLE);\n        setContentView(new CustomView(this));\n    }\n\n    class Pointer {\n        float x, y;\n        public Pointer(float x, float y) {\n            this.x = x;\n            this.y = y;\n        }\n    }\n\n    class CustomView extends View {\n        protected ArrayList&lt;Pointer&gt; pointerList = null;  \/\/(2)\n        Paint paint = null;  \/\/(1)\n\n        public CustomView(Context context) {\n            super(context);\n            setBackgroundColor(Color.WHITE);\n            pointerList = new ArrayList&lt;Pointer&gt;();  \/\/(2)\n            paint = new Paint();  \/\/(1)\n            \/\/ \u5186\u306e\u63cf\u753b\uff08\u7dda\uff09\n            paint.setStyle(Paint.Style.STROKE);  \/\/(1)\n            paint.setColor(Color.RED);  \/\/(1)\n        }\n\n        @Override\n        protected void onDraw(Canvas canvas) {\n            if (pointerList != null) {\n                for (Pointer pointer : pointerList) {  \/\/(2)\n                    canvas.drawCircle(pointer.x, pointer.y, 30, paint);\n                }\n            }\n        }\n\n        @Override\n        public boolean onTouchEvent(MotionEvent event) {\n            int action = event.getAction();\n            switch (action &amp; MotionEvent.ACTION_MASK) {\n                case MotionEvent.ACTION_MOVE:\n                    pointerList.add(new Pointer(event.getX(), event.getY()));  \/\/(2)\n                    invalidate(); \/\/(3)\n            }\n            return true;\n        }\n    }\n}<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u30b9\u30c6\u30c3\u30d7\uff14\uff0e\u63cf\u753b\u51e6\u7406\u3092\u8efd\u6e1b\u3059\u308b<\/h2>\n\n\n\n<p>\u30b9\u30c6\u30c3\u30d7\uff13\u3067\u306f\u3001\u30dd\u30a4\u30f3\u30bf\u30fc\u306e\u60c5\u5831\u3092\u914d\u5217\u306b\u683c\u7d0d\u3057\u3066\u3001\u305d\u308c\u3092\u300c\u6bce\u56de\u306f\u3058\u3081\u304b\u3089\u300d\u63cf\u304d\u76f4\u3057\u3066\u3044\u307e\u3059\u3002Undo\u5b9f\u88c5\u306a\u3089\u3001\u307e\u3042\u304b\u306a\u308a\u76ee\u3092\u3064\u3080\u3063\u3066\u300c\u30a2\u30ea\u300d\u306a\u306e\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001\u3068\u308a\u3042\u3048\u305a\u304a\u7d75\u304b\u304d\u3059\u308b\u306b\u306f\u304b\u306a\u308a\u5197\u9577\u306a\u51e6\u7406\u3067\u3059\u3002\u3053\u3053\u3067\u306f\u51e6\u7406\u65b9\u6cd5\u3092\u5909\u3048\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u308c\u307e\u3067\u306e\u8003\u3048\u65b9\u306f\u3001<\/p>\n\n\n\n<ul class=\"ystdtb-icon-list icon--check-circle has-ys-orange-icon-font-color has-icon-font-color\"><li><strong>onTouchEvent<\/strong>\u3092\u62fe\u3063\u3066\u3001\u5ea7\u6a19\u60c5\u5831\u3092\u914d\u5217\u306b\u5165\u308c\u3066\u3001\u753b\u9762\u66f4\u65b0\uff08invalidate\uff09<\/li><li>invalidate\u3067\u547c\u3073\u51fa\u3055\u308c\u305f<strong>onDraw<\/strong>\u3067\u3001\u914d\u5217\u306e\u5168\u5ea7\u6a19\u60c5\u5831\u3092\u63cf\u753b<\/li><\/ul>\n\n\n\n<p>\u3067\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u3067\u3001\u4eca\u56de\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"ystdtb-icon-list icon--check-circle has-ys-orange-icon-font-color has-icon-font-color\"><li>\u4eee\u7a7a\u9593\u306b\u63cf\u753b\u7528\u30ad\u30e3\u30f3\u30d0\u30b9\u3092\u7528\u610f<\/li><li>\u3053\u306e\u30ad\u30e3\u30f3\u30d0\u30b9\u306b<strong>onTouchEvent<\/strong>\u3067\u63cf\u753b\u3059\u308b\u3002\u3053\u306e\u30ad\u30e3\u30f3\u30d0\u30b9\u306f\u3001\u52dd\u624b\u306b\u30af\u30ea\u30a2\u306f\u3055\u308c\u307e\u305b\u3093\uff08\u3053\u3053\u5927\u4e8b\uff09<\/li><li>\u7aef\u672b\u306e\u8868\u793a\u7528\u30ad\u30e3\u30f3\u30d0\u30b9\u306b\u3001\u4e0a\u3067\u63cf\u3044\u305f\u30ad\u30e3\u30f3\u30d0\u30b9\u60c5\u5831\u3092\u63cf\u753b\u3059\u308b<\/li><\/ul>\n\n\n\n<p>\u4eca\u56de\u3082\u3001<strong>onTouchEvent<\/strong>\u3054\u3068\u306b\u753b\u9762\u3092\u66f4\u65b0\u3057\u3066\u3044\u304d\u307e\u3059\u304c\u3001\u30b9\u30c6\u30c3\u30d7\uff13\u306e\u300c\u5168\u914d\u5217\u63cf\u753b\u300d\u3068\u7570\u306a\u308a\u3001\u63cf\u753b\u306b\u304b\u304b\u308b\u51e6\u7406\u8ca0\u8377\u306f\u4e00\u5b9a\u306b\u306a\u308a\u307e\u3059\u3002\u6bce\u56de\u300c\u4eee\u7a7a\u9593\u306e\u30ad\u30e3\u30f3\u30d0\u30b9\u3092\u3001\u7aef\u672b\u306e\u8868\u793a\u7528\u30ad\u30e3\u30f3\u30d0\u30b9\u306b\u66f8\u304d\u5199\u3059\u300d\u308f\u3051\u3067\u3059\u304b\u3089\u3002<\/p>\n\n\n\n<p>\u5909\u66f4\u7b87\u6240\u3068\u3057\u3066\u306f<\/p>\n\n\n\n<ul class=\"ystdtb-icon-list icon--check-circle has-ys-orange-icon-font-color has-icon-font-color\"><li>class Pointer\u3092\u4f7f\u3046\u306e\u3092\u3084\u3081\u305f\u306e\u3067\u3001\u3053\u308c\u306b\u4ed8\u968f\u3059\u308b\u7b87\u6240\u306f\u3059\u3079\u3066\u30b3\u30e1\u30f3\u30c8\u30a2\u30a6\u30c8\u3057\u3066\u3044\u307e\u3059<\/li><li>\u2460\u4eee\u7a7a\u9593\u306b\u30ad\u30e3\u30f3\u30d0\u30b9\u3092\u7528\u610f\u3057\u307e\u3059\u3002\u753b\u9762\u304c\u958b\u304b\u308c\u305f\u6700\u521d\u3060\u3051\u547c\u3070\u308c\u308b\u30e1\u30bd\u30c3\u30c9 <strong>onSizeChanged<\/strong> \u3092\u4f7f\u3063\u3066<ul><li>\u30d3\u30c3\u30c8\u30de\u30c3\u30d7\u3092\u751f\u6210\u3057\u3066\uff08bmp\uff09<\/li><li>\u305d\u308c\u3092\u30ad\u30e3\u30f3\u30d0\u30b9\u306b\u30bb\u30c3\u30c8\u3057\u307e\u3059<\/li><\/ul><\/li><li>\u2462<strong>MotionsEvent<\/strong>\u767a\u751f\u6642\u306b\u3001\u2460\u306e\u30ad\u30e3\u30f3\u30d0\u30b9\u306b\u4e38\u3092\u63cf\u304d\u307e\u3059<\/li><li>\u2461\u753b\u9762\u63cf\u753b\u6642\u306b\u3001\u2460\u306e\u30ad\u30e3\u30f3\u30d0\u30b9\u3067\u63cf\u3044\u3066\u3044\u305f\u5185\u5bb9\u3092\u3001\u753b\u9762\u8868\u793a\u7528\u30ad\u30e3\u30f3\u30d0\u30b9\u306b\u63cf\u304d\u5199\u3057\u307e\u3059<\/li><\/ul>\n\n\n\n<pre title=\"MainActivity.java\" class=\"wp-block-code\"><code lang=\"java\" class=\"language-java\">import android.content.Context;\nimport android.graphics.Bitmap;\nimport android.graphics.Canvas;\nimport android.graphics.Color;\nimport android.graphics.Paint;\nimport android.os.Bundle;\nimport android.view.MotionEvent;\nimport android.view.View;\nimport android.view.Window;\n\nimport androidx.appcompat.app.AppCompatActivity;\n\npublic class MainActivity extends AppCompatActivity {\n    @Override\n    protected void onCreate(Bundle savedInstanceState) {\n        super.onCreate(savedInstanceState);\n        requestWindowFeature(Window.FEATURE_NO_TITLE);\n        setContentView(new CustomView(this));\n    }\n    \/*class Pointer {                        \u3053\u3053\u304c\u4e0d\u8981\u306b\u306a\u3063\u3066\n    float x,y;\n    public Pointer(float x, float y){\n    this.x = x;\n    this.y = y;\n    }\n    }*\/\n    class CustomView extends View {\n        \/\/protected ArrayList&lt;Pointer&gt; pointerList = null;      \u3053\u308c\u3082\u4e0d\u8981\u306b\u306a\u3063\u3066\n        Paint paint = null;\n        Bitmap bmp;\n        Canvas bmpCanvas;\n        public CustomView(Context context) {\n            super(context);\n            setBackgroundColor(Color.WHITE);\n            \/\/pointerList = new ArrayList&lt;Pointer&gt;();         \u3053\u308c\u3082\u4e0d\u8981\u306b\u306a\u3063\u3066\n            paint = new Paint();\n            \/\/ \u5186\u306e\u63cf\u753b\uff08\u7dda\uff09\n            paint.setStyle(Paint.Style.STROKE);\n            paint.setColor(Color.RED);\n        }\n        @Override\n        protected void onSizeChanged(int w, int h, int oldw, int oldh){                 \/\/\u2460\n            super.onSizeChanged(w, h, oldw, oldh);\n            bmp = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);\n            bmpCanvas = new Canvas(bmp);\n        }\n        @Override\n        protected void onDraw(Canvas canvas){\n            \/*if(pointerList!=null){          \u3053\u308c\u3082\u4e0d\u8981\u306b\u306a\u3063\u3066\n            for(Pointer pointer : pointerList){\n            canvas.drawCircle(pointer.x, pointer.y, 5, paint);\n            }\n            }*\/\n            canvas.drawBitmap(bmp, 0, 0, null);            \/\/\u2461\n        }\n        @Override\n        public boolean onTouchEvent(MotionEvent event){\n            int action = event.getAction();\n            switch(action &amp; MotionEvent.ACTION_MASK){\n                case MotionEvent.ACTION_MOVE:\n                    \/\/pointerList.add(new Pointer(event.getX(), event.getY()));      \u3053\u308c\u3082\u4e0d\u8981\u306b\n                    bmpCanvas.drawCircle(event.getX(), event.getY(), 30, paint);        \/\/\u2462\n                    invalidate();\n            }\n            return true;\n        }\n    }\n}<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u304a\u307e\u3051\uff1a\u4e0a\u8a184\u3064\u306e\u30e2\u30fc\u30c9\u3092\u5207\u308a\u66ff\u3048\u3066\u52d5\u304b\u305b\u308b\u30b3\u30fc\u30c9<\/h2>\n\n\n\n<p>\u8aac\u660e\u3057\u307e\u305b\u3093\u304c\u3001\u3088\u304b\u3063\u305f\u3089\u304a\u8a66\u3057\u3067\u30b3\u30d4\u30da\u3057\u3066\u904a\u3093\u3067\u307f\u3066\u304f\u3060\u3055\u3044\u3002\u3069\u3093\u306a\u98a8\u306b\u52d5\u304f\u3082\u306e\u304b\u3001\u52d5\u753b\u3082\u64ae\u308a\u307e\u3057\u305f\u306e\u3067\u5408\u308f\u305b\u3066\u307f\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"\u3010Android\u30a2\u30d7\u30ea\u30b5\u30f3\u30d7\u30eb\u3011\u753b\u9762\u63cf\u753b\u30c6\u30b9\u30c8\" width=\"800\" height=\"450\" src=\"https:\/\/www.youtube.com\/embed\/yEfn-ELr3iU?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<pre title=\"MainActivity.java\" class=\"wp-block-code\"><code lang=\"java\" class=\"language-java line-numbers\">import androidx.appcompat.app.AppCompatActivity;\n\nimport android.content.Context;\nimport android.graphics.Bitmap;\nimport android.graphics.Canvas;\nimport android.graphics.Color;\nimport android.graphics.Paint;\nimport android.os.Bundle;\nimport android.view.MotionEvent;\nimport android.view.View;\nimport android.view.Window;\nimport android.widget.Button;\nimport android.widget.LinearLayout;\nimport android.widget.TextView;\n\nimport java.util.ArrayList;\n\npublic class MainActivity extends AppCompatActivity {\n    private final int WC = LinearLayout.LayoutParams.WRAP_CONTENT;\n    private final int MP = LinearLayout.LayoutParams.MATCH_PARENT;\n\n    private TextView selectViewMsg = null;\n    private LinearLayout viewLayout = null;\n    private Custom0View cv0 = null;\n    private Custom1View cv1 = null;\n    private Custom2View cv2 = null;\n    private Custom3View cv3 = null;\n\n    @Override\n    protected void onCreate(Bundle savedInstanceState) {\n        super.onCreate(savedInstanceState);\n        requestWindowFeature(Window.FEATURE_NO_TITLE);\n\n        LinearLayout baseLayout = new LinearLayout(this);\n        baseLayout.setOrientation(LinearLayout.VERTICAL);\n\n        selectViewMsg = new TextView(this);\n        selectViewMsg.setText(\"\u6307\u5b9a\u306a\u3057\");\n        selectViewMsg.setLayoutParams(new LinearLayout.LayoutParams(MP, WC));\n\n        LinearLayout upperLayout = new LinearLayout(this);\n        upperLayout.setOrientation(LinearLayout.HORIZONTAL);\n        upperLayout.addView(genButton(\"\u30b9\u30c6\u30c3\u30d71\", 0));\n        upperLayout.addView(genButton(\"\u30b9\u30c6\u30c3\u30d72\", 1));\n        upperLayout.addView(genButton(\"\u30b9\u30c6\u30c3\u30d73\", 2));\n        upperLayout.addView(genButton(\"\u30b9\u30c6\u30c3\u30d74\", 3));\n\n        viewLayout = new LinearLayout(this);\n        cv0 = new Custom0View(this);\n        cv1 = new Custom1View(this);\n        cv2 = new Custom2View(this);\n        cv3 = new Custom3View(this);\n\n        baseLayout.addView(selectViewMsg);\n        baseLayout.addView(upperLayout);\n        baseLayout.addView(viewLayout);\n        setContentView(baseLayout);\n    }\n\n    class Custom0View extends View {\n        public Custom0View(Context context) {\n            super(context);\n            setBackgroundColor(Color.WHITE);\n        }\n        @Override\n        protected void onDraw(Canvas canvas){\n            Paint paint = new Paint();\n            \/\/ \u30c6\u30ad\u30b9\u30c8\u66f8\u304d\u8fbc\u307f\n            paint.setAntiAlias(true);\n            paint.setTextSize(72);\n            paint.setColor(Color.rgb(0, 0, 0));\n            canvas.drawText(\"\u3069\u308d\u30fc\u3066\u304d\u3059\u3068\", 0, 60, paint);\n            \/\/ \u30e9\u30a4\u30f3\u306e\u66f8\u304d\u8fbc\u307f\n            paint.setStrokeWidth(1);\n            paint.setStyle(Paint.Style.STROKE);\n            paint.setColor(Color.BLUE);\n            canvas.drawLine(0, 100, 500, 600, paint);\n            \/\/ \u56db\u89d2\u5f62\u306e\u63cf\u753b\uff08\u5857\u308a\u3064\u3076\u3057\uff09\n            paint.setStyle(Paint.Style.FILL);\n            paint.setColor(Color.GREEN);\n            canvas.drawRect(0, 200, 300, 500, paint);\n            \/\/ \u5186\u306e\u63cf\u753b\uff08\u7dda\uff09\n            paint.setStyle(Paint.Style.STROKE);\n            paint.setColor(Color.RED);\n            canvas.drawCircle(550, 350, 200, paint);\n        }\n    }\n\n    class Pointer {\n        float x,y;\n        public Pointer(float x, float y){\n            this.x = x;\n            this.y = y;\n        }\n    }\n    class Custom1View extends View {\n        protected Pointer pointer = null;\n\n        public Custom1View(Context context) {\n            super(context);\n            setBackgroundColor(Color.WHITE);\n        }\n\n        @Override\n        protected void onDraw(Canvas canvas) {\n            Paint paint = new Paint();\n            \/\/ \u5186\u306e\u63cf\u753b\uff08\u7dda\uff09\n            paint.setStyle(Paint.Style.STROKE);\n            paint.setColor(Color.RED);\n            if (pointer != null) {\n                canvas.drawCircle(pointer.x, pointer.y, 30, paint);\n            }\n        }\n\n        @Override\n        public boolean onTouchEvent(MotionEvent event) {\n            int action = event.getAction();\n            switch (action &amp; MotionEvent.ACTION_MASK) {\n                case MotionEvent.ACTION_MOVE:\n                    pointer = new Pointer(event.getX(), event.getY());\n            }\n            invalidate();\n            return true;\n        }\n    }\n\n    class Custom2View extends View {\n        protected ArrayList&lt;Pointer&gt; pointerList = null;  \/\/(2)\n        Paint paint = null;  \/\/(1)\n\n        public Custom2View(Context context) {\n            super(context);\n            setBackgroundColor(Color.WHITE);\n            pointerList = new ArrayList&lt;Pointer&gt;();  \/\/(2)\n            paint = new Paint();  \/\/(1)\n            \/\/ \u5186\u306e\u63cf\u753b\uff08\u7dda\uff09\n            paint.setStyle(Paint.Style.STROKE);  \/\/(1)\n            paint.setColor(Color.RED);  \/\/(1)\n        }\n\n        @Override\n        protected void onDraw(Canvas canvas) {\n            if (pointerList != null) {\n                for (Pointer pointer : pointerList) {  \/\/(2)\n                    canvas.drawCircle(pointer.x, pointer.y, 30, paint);\n                }\n            }\n        }\n\n        @Override\n        public boolean onTouchEvent(MotionEvent event) {\n            int action = event.getAction();\n            switch (action &amp; MotionEvent.ACTION_MASK) {\n                case MotionEvent.ACTION_MOVE:\n                    pointerList.add(new Pointer(event.getX(), event.getY()));  \/\/(2)\n                    invalidate(); \/\/(3)\n            }\n            return true;\n        }\n    }\n\n    class Custom3View extends View {\n        \/\/protected ArrayList&lt;Pointer&gt; pointerList = null;      \u3053\u308c\u3082\u4e0d\u8981\u306b\u306a\u3063\u3066\n        Paint paint = null;\n        Bitmap bmp;\n        Canvas bmpCanvas;\n        public Custom3View(Context context) {\n            super(context);\n            setBackgroundColor(Color.WHITE);\n            \/\/pointerList = new ArrayList&lt;Pointer&gt;();         \u3053\u308c\u3082\u4e0d\u8981\u306b\u306a\u3063\u3066\n            paint = new Paint();\n            \/\/ \u5186\u306e\u63cf\u753b\uff08\u7dda\uff09\n            paint.setStyle(Paint.Style.STROKE);\n            paint.setColor(Color.RED);\n        }\n        @Override\n        protected void onSizeChanged(int w, int h, int oldw, int oldh){                 \/\/\u2460\n            super.onSizeChanged(w, h, oldw, oldh);\n            bmp = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);\n            bmpCanvas = new Canvas(bmp);\n        }\n        @Override\n        protected void onDraw(Canvas canvas){\n            \/*if(pointerList!=null){          \u3053\u308c\u3082\u4e0d\u8981\u306b\u306a\u3063\u3066\n            for(Pointer pointer : pointerList){\n            canvas.drawCircle(pointer.x, pointer.y, 5, paint);\n            }\n            }*\/\n            canvas.drawBitmap(bmp, 0, 0, null);            \/\/\u2461\n        }\n        @Override\n        public boolean onTouchEvent(MotionEvent event){\n            int action = event.getAction();\n            switch(action &amp; MotionEvent.ACTION_MASK){\n                case MotionEvent.ACTION_MOVE:\n                    \/\/pointerList.add(new Pointer(event.getX(), event.getY()));      \u3053\u308c\u3082\u4e0d\u8981\u306b\n                    bmpCanvas.drawCircle(event.getX(), event.getY(), 30, paint);        \/\/\u2462\n                    invalidate();\n            }\n            return true;\n        }\n    }\n\n    private Button genButton(String msg, int id){\n        Button button = new Button(this);\n        button.setText(msg);\n        button.setLayoutParams(new LinearLayout.LayoutParams(0, WC, 1));\n        button.setTag(id);\n        button.setOnClickListener(new ButtonClickListener());\n        return button;\n    }\n\n    private class ButtonClickListener implements View.OnClickListener {\n        @Override\n        public void onClick(View v) {\n            viewLayout.removeAllViews();\n            switch ((Integer) v.getTag()){\n                case 0:\n                    viewLayout.addView(cv0);\n                    selectViewMsg.setText(\"\u30b9\u30c6\u30c3\u30d71\");\n                    break;\n                case 1:\n                    viewLayout.addView(cv1);\n                    selectViewMsg.setText(\"\u30b9\u30c6\u30c3\u30d72\");\n                    break;\n                case 2:\n                    viewLayout.addView(cv2);\n                    selectViewMsg.setText(\"\u30b9\u30c6\u30c3\u30d73\");\n                    break;\n                case 3:\n                    viewLayout.addView(cv3);\n                    selectViewMsg.setText(\"\u30b9\u30c6\u30c3\u30d74\");\n                    break;\n                default :\n                    break;\n            }\n        }\n    }\n}<\/code><\/pre>\n\n\n\n<p>\u4ee5\u4e0a\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u3053\u306b\u793a\u3057\u305f\u30b5\u30f3\u30d7\u30eb\u306f\u6700\u9069\u306a\u30b3\u30fc\u30c9\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u3053\u3046\u3084\u3063\u3066\u30b3\u30fc\u30c9\u3092\u66f8\u3044\u305f\u3089\u7d75\u3092\u63cf\u3051\u308b\u3093\u3060\u306d\u3001\u3058\u3083\u3042\u30d6\u30e9\u30b7\u3068\u304b\u81ea\u5206\u3067\u4f5c\u3063\u3066\u307f\u3066\u3001\u305d\u308c\u3092\u63cf\u304f\u306e\u306b\u4f7f\u3048\u305f\u308a\u3059\u308b\u306e\u304b\u306a\uff1f\u3068\u304b\u3044\u3046\u8a66\u884c\u932f\u8aa4\u3092\u901a\u3057\u3066\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306e\u30b9\u30ad\u30eb\u30a2\u30c3\u30d7\u306b\u7e4b\u304c\u308c\u3070\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u305d\u308c\u3067\u306f\u307e\u305f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3053\u3093\u306b\u3061\u306f\u3001\u30b3\u30f3\u30c6\u30f3\u30c4\u30af\u30ea\u30a8\u30a4\u30bf\u30fc\u306e\u3068\u3082\u3059\u3051\u3067\u3059\u3002 \uff08\u3054\u3081\u3093\u306a\u3055\u3044\u306d\u3001\u7d9a\u304d\u304c\u306a\u304f\u3066\u3002\u3053\u3046\u3044\u3046\u306e\u3092\u4f01\u753b\u5012\u308c\u3068\u3044\u3044\u307e\u3059\u2026\u3002\u3067\u3082\u3001\u305d\u306e\u3046\u3061\u7d9a\u304d\u3092\u4f5c\u308a\u305f\u3044\u3067\u3059\uff09 \u300c \u2026<\/p>\n","protected":false},"author":1,"featured_media":850,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[264,247],"class_list":{"0":"post-1409","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-develop","8":"tag-android","9":"tag-java"},"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/bunktiruu.com\/index.php?rest_route=\/wp\/v2\/posts\/1409","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bunktiruu.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bunktiruu.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bunktiruu.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bunktiruu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1409"}],"version-history":[{"count":22,"href":"https:\/\/bunktiruu.com\/index.php?rest_route=\/wp\/v2\/posts\/1409\/revisions"}],"predecessor-version":[{"id":2466,"href":"https:\/\/bunktiruu.com\/index.php?rest_route=\/wp\/v2\/posts\/1409\/revisions\/2466"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/bunktiruu.com\/index.php?rest_route=\/wp\/v2\/media\/850"}],"wp:attachment":[{"href":"https:\/\/bunktiruu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1409"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bunktiruu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1409"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bunktiruu.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1409"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}