{"id":188,"date":"2018-11-27T22:48:58","date_gmt":"2018-11-27T13:48:58","guid":{"rendered":"https:\/\/dalomo.net\/blog\/?p=188"},"modified":"2018-12-08T21:51:35","modified_gmt":"2018-12-08T12:51:35","slug":"%e9%9f%b3%e6%a5%bd%e3%82%92%e9%b3%b4%e3%82%89%e3%81%99","status":"publish","type":"post","link":"https:\/\/dalomo.net\/blog\/2018\/11\/27\/188\/","title":{"rendered":"\u97f3\u697d\u3092\u9cf4\u3089\u3059"},"content":{"rendered":"<p><iframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/Ft2PFKVXL1E\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<h2>\u97f3\u697d\u3092\u9cf4\u3089\u3057\u305f\u3044<\/h2>\n<h3>raw\u30d5\u30a9\u30eb\u30c0\u3092\u4f5c\u3063\u3066\u7d20\u6750\u3092\u5165\u308c\u308b<\/h3>\n<p><a href=\"https:\/\/dalomo.net\/blog\/wp-content\/uploads\/2018\/11\/m01-1.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-197\" src=\"https:\/\/dalomo.net\/blog\/wp-content\/uploads\/2018\/11\/m01-1-300x265.png\" alt=\"\" width=\"300\" height=\"265\" srcset=\"https:\/\/dalomo.net\/blog\/wp-content\/uploads\/2018\/11\/m01-1-300x265.png 300w, https:\/\/dalomo.net\/blog\/wp-content\/uploads\/2018\/11\/m01-1-768x679.png 768w, https:\/\/dalomo.net\/blog\/wp-content\/uploads\/2018\/11\/m01-1.png 784w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/dalomo.net\/blog\/wp-content\/uploads\/2018\/11\/m02.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-190\" src=\"https:\/\/dalomo.net\/blog\/wp-content\/uploads\/2018\/11\/m02-300x179.png\" alt=\"\" width=\"300\" height=\"179\" srcset=\"https:\/\/dalomo.net\/blog\/wp-content\/uploads\/2018\/11\/m02-300x179.png 300w, https:\/\/dalomo.net\/blog\/wp-content\/uploads\/2018\/11\/m02-768x457.png 768w, https:\/\/dalomo.net\/blog\/wp-content\/uploads\/2018\/11\/m02.png 840w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>\u30d5\u30a1\u30a4\u30eb\u540d\u306f\u300c_\u300d\u3068\u5c0f\u6587\u5b57\u3057\u304b\u30c0\u30e1\u3089\u3057\u3044\u3002<\/p>\n<h3>\u30dc\u30bf\u30f3\u3092\u62bc\u3057\u3066\u97f3\u697d\u3092\u9cf4\u3089\u3059<\/h3>\n<pre>public class BGM extends AppCompatActivity {\r\n    Button btPlay;\r\n    MediaPlayer player;\r\n    int r = (int) (Math.random() * 10);\r\n    String mediaFileUriStr;\r\n\r\n    @Override\r\n    protected void onCreate(Bundle savedInstanceState) {\r\n        super.onCreate(savedInstanceState);\r\n        setContentView(R.layout.activity_bgm);\r\n\r\n        btPlay = findViewById(R.id.button);\r\n        player = new MediaPlayer();\r\n\r\n        if (r &lt;= 4) {\r\n            mediaFileUriStr = \"android.resource:\/\/\" + getPackageName() + \"\/\" + R.raw.wakuwaku_tanoshii_christmas;\r\n        }else{\r\n            mediaFileUriStr = \"android.resource:\/\/\" + getPackageName() + \"\/\" + R.raw.thats_a_xmas;\r\n        }\r\n\r\n        Uri mediaFileUri = Uri.parse(mediaFileUriStr);\r\n        try {\r\n            player.setDataSource(this, mediaFileUri);\r\n            player.setOnPreparedListener(new PlayerPreparedListener());\r\n            player.setOnCompletionListener(new PlayerCompletionListener());\r\n            player.prepareAsync();\r\n        }\r\n        catch (IOException e) {\r\n        }\r\n\r\n    }\r\n\r\n    public void onPlayButtonClick(View v) {\r\n        if(!player.isPlaying()) {\r\n            player.start();\r\n            player.setLooping(true);\r\n            btPlay.setText(\"Pause\");\r\n        }else {\r\n            player.pause();\r\n            btPlay.setText(\"Play\");\r\n        }\r\n    }\r\n\r\n    protected void onDestroy() {\r\n        super.onDestroy();\r\n\r\n        if(player.isPlaying()) {\r\n            player.stop();\r\n        }\r\n\r\n        player.release();\r\n        player = null;\r\n    }\r\n\r\n    private class PlayerPreparedListener implements MediaPlayer.OnPreparedListener {\r\n\r\n        @Override\r\n        public void onPrepared(MediaPlayer mp) {\r\n            btPlay.setEnabled(true);\r\n        }\r\n    }\r\n\r\n    private class PlayerCompletionListener implements MediaPlayer.OnCompletionListener {\r\n\r\n        @Override\r\n        public void onCompletion(MediaPlayer mp) {\r\n            btPlay.setText(\"Pause\");\r\n        }\r\n    }<\/pre>\n<p>MediaPlayer\u3063\u3066\u306e\u3092\u4f7f\u3046\u3068\u7c21\u5358\u306b\u3067\u304d\u305f\u3002try-catch\u306f\u30b5\u30f3\u30d7\u30eb\u306b\u66f8\u3044\u3066\u3042\u3063\u305f\u3093\u3060\u3051\u3069\u3001\u3053\u308c\u306f\u4f55\u3092\u3059\u308b\u3093\u3060\u308d\u3046\u3002\u30ea\u30b9\u30ca\u304c2\u3064\u3082\u3042\u3063\u3066\u3081\u3093\u3069\u3044\u3002asynch\u3068\u3044\u3046\u306e\u304c\u51fa\u3066\u304d\u305f\u3002\u307e\u305f\u975e\u540c\u671f\u51e6\u7406\u306e\u8a71\u304b\u30fc\u3002\u3042\u3068\u306b\u3057\u3088\u3046\u3002<\/p>\n<h3>\u8d77\u52d5\u3057\u305f\u3089\u52dd\u624b\u306b\u97f3\u3092\u9cf4\u3089\u3059<\/h3>\n<pre>public class BGM extends AppCompatActivity {\r\n    MediaPlayer player;\r\n    int r = (int) (Math.random() * 10);\r\n    String mediaFileUriStr;\r\n\r\n    @Override\r\n    protected void onCreate(Bundle savedInstanceState) {\r\n        super.onCreate(savedInstanceState);\r\n        setContentView(R.layout.activity_bgm);\r\n\r\n        player = new MediaPlayer();\r\n\r\n        if (r &lt;= 4) {\r\n            mediaFileUriStr = \"android.resource:\/\/\" + getPackageName() + \"\/\" + R.raw.wakuwaku_tanoshii_christmas;\r\n        } else {\r\n            mediaFileUriStr = \"android.resource:\/\/\" + getPackageName() + \"\/\" + R.raw.thats_a_xmas;\r\n        }\r\n\r\n        Uri mediaFileUri = Uri.parse(mediaFileUriStr);\r\n        try {\r\n            player.setDataSource(this, mediaFileUri);\r\n            player.setOnPreparedListener(new PlayerPreparedListener());\r\n            player.prepareAsync();\r\n        } catch (IOException e) {\r\n        }\r\n\r\n    }\r\n\r\n    @Override\r\n    protected void onResume() {\r\n        super.onResume();\r\n        if (!player.isPlaying()) {\r\n            player.start();\r\n            player.setLooping(true);\r\n        }\r\n    }\r\n\r\n    protected void onPause() {\r\n        super.onPause();\r\n        if (player.isPlaying()) {\r\n            player.pause();\r\n        }\r\n    }\r\n\r\n    protected void onDestroy() {\r\n        super.onDestroy();\r\n\r\n        if (player.isPlaying()) {\r\n            player.stop();\r\n        }\r\n\r\n        player.release();\r\n        player = null;\r\n    }\r\n\r\n    private class PlayerPreparedListener implements MediaPlayer.OnPreparedListener {\r\n\r\n        @Override\r\n        public void onPrepared(MediaPlayer mp) {\r\n            player.start();\r\n            player.setLooping(true);\r\n        }\r\n    }<\/pre>\n<p>\u30dc\u30bf\u30f3\u3092\u53d6\u3063\u6255\u3063\u3066\u3001onResume\u3068onPause\u3092\u8ffd\u52a0\u3002\u305d\u3093\u3067PlayerPreparedListener\u306bstart\u3092\u66f8\u304f\u3002\u3075\u3080\u3075\u3080\u3002<\/p>\n<h3>\u753b\u9762\u9077\u79fb\u3057\u3066\u3082\u97f3\u3092\u9cf4\u3089\u3059<\/h3>\n<p>Service\u3068\u3044\u3046\u3082\u306e\u304c\u5fc5\u8981\u3060\u305d\u3046\u306a\u306e\u3067\u3001\u307e\u305a\u305d\u306e\u30af\u30e9\u30b9\u3092\u4f5c\u308b\u3002<\/p>\n<p><a href=\"https:\/\/dalomo.net\/blog\/wp-content\/uploads\/2018\/11\/s01.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-192\" src=\"https:\/\/dalomo.net\/blog\/wp-content\/uploads\/2018\/11\/s01-300x282.png\" alt=\"\" width=\"300\" height=\"282\" srcset=\"https:\/\/dalomo.net\/blog\/wp-content\/uploads\/2018\/11\/s01-300x282.png 300w, https:\/\/dalomo.net\/blog\/wp-content\/uploads\/2018\/11\/s01.png 736w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/dalomo.net\/blog\/wp-content\/uploads\/2018\/11\/s02.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-193\" src=\"https:\/\/dalomo.net\/blog\/wp-content\/uploads\/2018\/11\/s02-300x240.png\" alt=\"\" width=\"300\" height=\"240\" srcset=\"https:\/\/dalomo.net\/blog\/wp-content\/uploads\/2018\/11\/s02-300x240.png 300w, https:\/\/dalomo.net\/blog\/wp-content\/uploads\/2018\/11\/s02-768x614.png 768w, https:\/\/dalomo.net\/blog\/wp-content\/uploads\/2018\/11\/s02.png 816w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>\u7c21\u5358\u3002<\/p>\n<h4>BGM.java<\/h4>\n<pre>public class BGM extends AppCompatActivity {\r\n\r\n    @Override\r\n    protected void onCreate(Bundle savedInstanceState) {\r\n        super.onCreate(savedInstanceState);\r\n        setContentView(R.layout.activity_bgm);\r\n\r\n        Intent intent = new Intent(this, BGMService.class);\r\n        startService(intent);\r\n    }\r\n\r\n    public void onClickMove(View view) {\r\n\r\n        Intent intent = new Intent(this, Nanimonai.class);\r\n        startActivity(intent);\r\n    }\r\n\r\n    protected void onDestroy() {\r\n        super.onDestroy();\r\n\r\n        Intent intent = new Intent(this, BGMService.class);\r\n        stopService(intent);\r\n    }\r\n\r\n}<\/pre>\n<h4>BGMService.java<\/h4>\n<pre>public class BGMService extends Service {\r\n    MediaPlayer player;\r\n    String mediaFileUriStr;\r\n    int r = (int) (Math.random() * 10);\r\n\r\n    @Override\r\n    public void onCreate() {\r\n        super.onCreate();\r\n\r\n        player = new MediaPlayer();\r\n    }\r\n\r\n    public int onStartCommand(Intent intent, int flags, int startId) {\r\n\r\n        if (r &lt;= 4) {\r\n            mediaFileUriStr = \"android.resource:\/\/\" + getPackageName() + \"\/\" + R.raw.wakuwaku_tanoshii_christmas;\r\n        } else {\r\n            mediaFileUriStr = \"android.resource:\/\/\" + getPackageName() + \"\/\" + R.raw.thats_a_xmas;\r\n        }\r\n\r\n        Uri mediaFileUri = Uri.parse(mediaFileUriStr);\r\n        try {\r\n            player.setDataSource(this, mediaFileUri);\r\n            player.setOnPreparedListener(new PlayerPreparedListener());\r\n            player.prepareAsync();\r\n        } catch (IOException e) {\r\n            e.printStackTrace();\r\n        }\r\n        return super.onStartCommand(intent, flags, startId);\r\n    }\r\n\r\n    private class PlayerPreparedListener implements MediaPlayer.OnPreparedListener {\r\n        @Override\r\n        public void onPrepared(MediaPlayer mp) {\r\n            mp.start();\r\n            mp.setLooping(true);\r\n        }\r\n    }\r\n\r\n    public void onDestroy() {\r\n        super.onDestroy();\r\n        if(player.isPlaying()) {\r\n            player.stop();\r\n        }\r\n        player.release();\r\n        player = null;\r\n    }\r\n\r\n    public BGMService() {\r\n    }\r\n\r\n    @Override\r\n    public IBinder onBind(Intent intent) {\r\n        \/\/ TODO: Return the communication channel to the service.\r\n        throw new UnsupportedOperationException(\"Not yet implemented\");\r\n    }\r\n}<\/pre>\n<p>\u3048\u30fc\u3068\u3001\u753b\u9762\u3092\u9077\u79fb\u3059\u308b\u3068\u304d\u306fIntent\u4f7f\u3046\u3002Service\u306e\u5834\u5408\u3082\u305d\u308c\u3068\u4f3c\u305f\u611f\u3058\u3002Service\u30af\u30e9\u30b9\u306b\u51e6\u7406\u3092\u66f8\u3044\u3066\u3001\u30e1\u30a4\u30f3\u304b\u3089startService(Intent), stopService(Intent)\u3067\u958b\u59cb\u30fb\u7d42\u4e86\u3002\u3060\u3088\u306d\u3002<\/p>\n<p>\u30b3\u30fc\u30c9\u6e1b\u3063\u305f\u306a\u3041\u3002Service\u3082\u975e\u540c\u671f\u51e6\u7406\u306e\u4e00\u7a2e\u3089\u3057\u3044\u3002\u9055\u3044\u304c\u3088\u304f\u308f\u304b\u3093\u306a\u3044\u306a\u3002\u4e0b2\u3064\u306e\u30d6\u30ed\u30c3\u30af\u306f\u4f55\u306b\u4f7f\u3046\u3093\u3060\u308d\u3046\u3002<\/p>\n<p>\u3068\u308a\u3042\u3048\u305a\u3001\u3084\u308a\u305f\u3044\u3053\u3068\u306f\u3067\u304d\u308b\u3053\u3068\u304c\u5206\u304b\u3063\u305f\u305e\u3002\u4eca\u5ea6\u306f\u5730\u56f3\u306e\u4f7f\u3044\u65b9\u52c9\u5f37\u3057\u3088\u3046\u3002<\/p>\n<h3>\u53c2\u8003<\/h3>\n<p><a href=\"http:\/\/www.hurtrecord.com\/bgm\/35\/wakuwaku-tanoshii-christmas.html\">http:\/\/www.hurtrecord.com\/bgm\/35\/wakuwaku-tanoshii-christmas.html<\/a><\/p>\n<p><a href=\"http:\/\/www.music-note.jp\/bgm\/xmas.html\">http:\/\/www.music-note.jp\/bgm\/xmas.html<\/a><\/p>\n<p><a href=\"https:\/\/codezine.jp\/article\/detail\/9762\">https:\/\/codezine.jp\/article\/detail\/9762<\/a><\/p>\n<p><a href=\"https:\/\/codezine.jp\/article\/detail\/9529\">https:\/\/codezine.jp\/article\/detail\/9529<\/a><\/p>\n<p><a href=\"https:\/\/docs.oracle.com\/javase\/jp\/7\/api\/java\/util\/Random.html\">https:\/\/docs.oracle.com\/javase\/jp\/7\/api\/java\/util\/Random.html<\/a><\/p>\n<p><a href=\"https:\/\/codezine.jp\/article\/detail\/9529\">https:\/\/codezine.jp\/article\/detail\/9529<\/a><\/p>\n<p><a href=\"https:\/\/codezine.jp\/article\/detail\/9817\">https:\/\/codezine.jp\/article\/detail\/9817<\/a><\/p>\n<p><a href=\"https:\/\/developer.android.com\/guide\/components\/activities\">https:\/\/developer.android.com\/guide\/components\/activities<\/a><\/p>\n<p><a href=\"https:\/\/qiita.com\/tk_daze\/items\/bc83c69750e5f2e4015c\">https:\/\/qiita.com\/tk_daze\/items\/bc83c69750e5f2e4015c<\/a><\/p>\n<p>[amazon asin=&#8221;4798152021&#8243; kw=&#8221;Android&#8221;]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u97f3\u697d\u3092\u9cf4\u3089\u3057\u305f\u3044 raw\u30d5\u30a9\u30eb\u30c0\u3092\u4f5c\u3063\u3066\u7d20\u6750\u3092\u5165\u308c\u308b &nbsp; \u30d5\u30a1\u30a4\u30eb\u540d\u306f\u300c_\u300d\u3068\u5c0f\u6587\u5b57\u3057\u304b\u30c0\u30e1\u3089\u3057\u3044\u3002 \u30dc\u30bf\u30f3\u3092\u62bc\u3057\u3066\u97f3\u697d\u3092\u9cf4\u3089\u3059 public class BGM extends AppCompatActivi &hellip; <a href=\"https:\/\/dalomo.net\/blog\/2018\/11\/27\/188\/\">\u7d9a\u304d\u3092\u8aad\u3080 <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":197,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[9],"tags":[3,6,4,24,15],"class_list":["post-188","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-9","tag-android","tag-androidstudio","tag-4","tag-24","tag-15"],"_links":{"self":[{"href":"https:\/\/dalomo.net\/blog\/wp-json\/wp\/v2\/posts\/188","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dalomo.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dalomo.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dalomo.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dalomo.net\/blog\/wp-json\/wp\/v2\/comments?post=188"}],"version-history":[{"count":3,"href":"https:\/\/dalomo.net\/blog\/wp-json\/wp\/v2\/posts\/188\/revisions"}],"predecessor-version":[{"id":198,"href":"https:\/\/dalomo.net\/blog\/wp-json\/wp\/v2\/posts\/188\/revisions\/198"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dalomo.net\/blog\/wp-json\/wp\/v2\/media\/197"}],"wp:attachment":[{"href":"https:\/\/dalomo.net\/blog\/wp-json\/wp\/v2\/media?parent=188"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dalomo.net\/blog\/wp-json\/wp\/v2\/categories?post=188"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dalomo.net\/blog\/wp-json\/wp\/v2\/tags?post=188"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}