{"id":4273,"date":"2018-07-19T10:08:36","date_gmt":"2018-07-19T02:08:36","guid":{"rendered":"http:\/\/www.bookcard.net\/wordpress\/?p=4273"},"modified":"2018-07-19T10:08:36","modified_gmt":"2018-07-19T02:08:36","slug":"android_game_mediaplayer","status":"publish","type":"post","link":"https:\/\/www.bookcard.net\/wordpress\/android_game_mediaplayer\/","title":{"rendered":"Android\u904a\u6232\u4e4b\u80cc\u666f\u97f3\u6a02"},"content":{"rendered":"<figure id=\"attachment_4274\" aria-describedby=\"caption-attachment-4274\" style=\"width: 1024px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/www.bookcard.net\/wordpress\/wp-content\/uploads\/2018\/07\/Android_Game_MediaPlayer.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-4274\" src=\"https:\/\/www.bookcard.net\/wordpress\/wp-content\/uploads\/2018\/07\/Android_Game_MediaPlayer.jpg\" alt=\"\" width=\"1024\" height=\"768\" srcset=\"https:\/\/www.bookcard.net\/wordpress\/wp-content\/uploads\/2018\/07\/Android_Game_MediaPlayer.jpg 1024w, https:\/\/www.bookcard.net\/wordpress\/wp-content\/uploads\/2018\/07\/Android_Game_MediaPlayer-300x225.jpg 300w, https:\/\/www.bookcard.net\/wordpress\/wp-content\/uploads\/2018\/07\/Android_Game_MediaPlayer-768x576.jpg 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption id=\"caption-attachment-4274\" class=\"wp-caption-text\">Android\u904a\u6232\u4e4b\u80cc\u666f\u97f3\u6a02<\/figcaption><\/figure>\n<p>\u904a\u6232\u8072\u97f3\u5206\u70ba\u300e\u97f3\u6a02\u300f\u8207\u300e\u97f3\u6548\u300f.\u904a\u6232\u80cc\u666f\u300e\u97f3\u6a02\u300f\u64ad\u653e\u6642\u9593\u901a\u5e38\u9054\u5e7e\u5206\u9418\u4ee5\u4e0a.\u97f3\u6a94\u901a\u5e38\u8f03\u5927\u4e0d\u80fd\u4e00\u6b21\u6027\u8f09\u5165\u8a18\u61b6\u9ad4.\u53ea\u80fd\u4ee5\u300e\u6578\u64da\u6d41\u300f\u65b9\u5f0f\u9010\u6b21\u8b80\u5165\u6578\u64da\u584a.\u4e26\u89e3\u78bc\u70baPCM\u6578\u64da\u4ea4\u7d66\u97f3\u983b\u82af\u7247\u4e0a.Android\u7cfb\u7d71\u63d0\u4f9bMediaPlayer\u5e6b\u4f60\u89e3\u537b\u6240\u6709\u554f\u984c. \u5c07\u6240\u6709\u300e\u97f3\u6a02\u300f\u6587\u6a94\u5b58\u653e\u5728\u300e\\app\\src\\main\\assets\u300f\u76ee\u9304\u4e0b.\u8b93AssetManager\u80fd\u5920\u8a2a\u554f.<\/p>\n<p>\u751f\u6210MediaPlayer\u97f3\u983b\u64ad\u653e\u5668<\/p>\n<p>MediaPlayer media_player = new MediaPlayer();<\/p>\n<p>\u7372\u53d6ASSET\u6587\u6a94\u63cf\u8ff0\u7b26<\/p>\n<p>AssetFileDescriptor afd = asset_manager.openFd(file_name);<\/p>\n<p>\u6587\u6a94\u63cf\u8ff0\u7b26<\/p>\n<p>FileDescriptor file_descriptor = afd.getFileDescriptor();<\/p>\n<p>\u7372\u53d6\u97f3\u6a94\u6578\u64da\u958b\u6b64\u4f4d\u7f6e\u504f\u79fb\u91cf<\/p>\n<p>long offset = afd.getStartOffset();<\/p>\n<p>\u7372\u53d6\u97f3\u6a94\u6578\u64da\u9577\u5ea6<\/p>\n<p>long length = afd.getLength();<\/p>\n<p>\u8a2d\u5b9a\u97f3\u6a94\u6578\u64da<\/p>\n<p>media_player.setDataSource(descriptor,offset,length);<\/p>\n<p>\u6bcf\u6b21\u555f\u52d5\u64ad\u653e\u6642.\u90fd\u9700\u8f09\u5165\u6e96\u5099\u64ad\u653e<\/p>\n<p>media_player.prepare();<\/p>\n<p>\u555f\u52d5\u64ad\u653e<\/p>\n<p>media_player.start();<\/p>\n<p>\u64ad\u653e\u4e2d\u82e5\u66ab\u505c\u64ad\u653e<\/p>\n<p>media_player.pause();<\/p>\n<p>\u64ad\u653e\u4e2d\u82e5\u505c\u6b62\u64ad\u653e<\/p>\n<p>media_player.stop();<\/p>\n<p>\u8a2d\u5b9a\u5faa\u74b0\u64ad\u653e.<\/p>\n<p>media_player.setLooping(true);<\/p>\n<p>\u8a2d\u5b9a\u5de6\u53f3\u8072\u9053\u97f3\u91cf.\u6578\u503c\u57280~1\u4e4b\u9593<\/p>\n<p>media_player.setVolume(volume,volume);<\/p>\n<p>\u5224\u5b9a\u6642\u5426\u64ad\u653e\u4e2d. isPlaying()\u82e5\u8fd4\u56detrue\u5247\u64ad\u653e\u4e2d\u5426\u5247\u8fd4\u56defalse<\/p>\n<p>media_player.isPlaying();<\/p>\n<p>\u6216\u7528\u8a3b\u518aOnCompletionListener\u7c21\u807d\u5668<\/p>\n<p>media_player.setOnCompletionListener(listener);<\/p>\n<p>\u82e5\u9000\u51fa\u904a\u6232\u9700\u91cb\u653e\u8a18\u61b6\u9ad4<\/p>\n<p>media_player.release();<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u904a\u6232\u8072\u97f3\u5206\u70ba\u300e\u97f3\u6a02\u300f\u8207\u300e\u97f3\u6548\u300f.\u904a\u6232\u80cc\u666f\u300e\u97f3\u6a02\u300f\u64ad\u653e\u6642\u9593\u901a\u5e38\u9054\u5e7e\u5206\u9418\u4ee5\u4e0a.\u97f3\u6a94\u901a\u5e38\u8f03\u5927\u4e0d\u80fd\u4e00\u6b21\u6027\u8f09\u5165\u8a18\u61b6\u9ad4.\u53ea &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/www.bookcard.net\/wordpress\/android_game_mediaplayer\/\" class=\"more-link\">\u7e7c\u7e8c\u95b1\u8b80 <span class=\"screen-reader-text\">Android\u904a\u6232\u4e4b\u80cc\u666f\u97f3\u6a02<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[2],"class_list":["post-4273","post","type-post","status-publish","format-standard","hentry","category-android","tag-android","entry"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/posts\/4273","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/comments?post=4273"}],"version-history":[{"count":1,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/posts\/4273\/revisions"}],"predecessor-version":[{"id":4275,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/posts\/4273\/revisions\/4275"}],"wp:attachment":[{"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/media?parent=4273"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/categories?post=4273"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/tags?post=4273"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}