{"id":916,"date":"2014-07-31T21:18:00","date_gmt":"2014-07-31T13:18:00","guid":{"rendered":"http:\/\/guoh.ai\/lifelog\/?p=916"},"modified":"2015-09-10T13:04:01","modified_gmt":"2015-09-10T13:04:01","slug":"pitfalls-in-android","status":"publish","type":"post","link":"https:\/\/guoh.ai\/lifelog\/2014\/07\/pitfalls-in-android\/","title":{"rendered":"Android \u5f53\u4e2d\u7684\u5751"},"content":{"rendered":"<p>\u8fd9\u91cc\u987a\u4fbf\u8bb0\u5f55\u4e0b Android \u5e94\u7528\u5f00\u53d1\u5f53\u4e2d\u7684\u4e00\u4e2a\u4e00\u4e2a\u7684\u5751\uff0c\u5f88\u591a\u65f6\u5019\u6211\u4eec\u90fd\u5728\u9762\u5bf9\u8fd9\u79cd\u95ee\u9898\uff0c\u4e0d\u540c\u7248\u672c\uff0c\u4e0d\u540c\u5382\u5546\u3002\u3002\u3002<br \/>\n\u4e5f\u8bb8\u6ca1\u6709\u8be6\u5c3d\/\u4f18\u96c5\u7684\u89e3\u51b3\u65b9\u6cd5\uff0c\u4f46\u662f\u81f3\u5c11\u95ee\u9898\u5728\u8fd9\u91cc<\/p>\n<p>1. SoundPool.play\u5728 Android 4.3 \u5f53\u4e2d\u6ca1\u6709\u529e\u6cd5 looping \u64ad\u653e<br \/>\nhttps:\/\/code.google.com\/p\/android\/issues\/detail?id=58113<\/p>\n<p>2. Streaming \u64ad\u653e\u58f0\u97f3\u7684\u65f6\u5019(\u6bd4\u5982 AudioManager.MODE_IN_COMMUNICATION)\u65e0\u6cd5\u5207\u6362\u5916\u653e<br \/>\nAudioManager.setMode(AudioManager.MODE_IN_CALL); \/\/ \u5207\u6362\u6210\u7535\u8bdd\u6a21\u5f0f\u5c31\u53ef\u4ee5\u5207\u6362<br \/>\nAudioManager.setSpeakerphoneOn(true);<\/p>\n<p>3. \u5728\u67d0\u4e9b\u673a\u5668\u4e0a\uff0c\u6bd4\u5982\u63d2\u5165\u8033\u673a\u7684\u65f6\u5019\u65e0\u6cd5\u5207\u6362\u5916\u653e<\/p>\n<p>4. \u5199\u4e2a\u8ddf Android \u7f16\u8bd1\u76f8\u5173\u7684<br \/>\nAnt \u811a\u672c\u5f53\u4e2d\u8fd8\u662f\u5f88\u8001\u7684 Java 1.5<br \/>\n\u53c2\u89c1 $ANDROID_HOME\/tools\/ant\/build.xml<\/p>\n<pre class=\"brush: bash; title: ; notranslate\" title=\"\">\r\n&lt;property name=&quot;java.target&quot; value=&quot;1.5&quot; \/&gt;\r\n&lt;property name=&quot;java.source&quot; value=&quot;1.5&quot; \/&gt;\r\n<\/pre>\n<p>\u5bf9\u4e8e\u8ffd\u6c42\u65b0\u7684\u4eba\u6765\u8bf4\u5f53\u7136\u592a\u8001\u4e86\uff0cAndroid \u5f00\u53d1\u90fd\u7528 Java 7\uff0c\u81ea\u5df1\u73a9\u90fd\u7528 Java 9 \u4e86<\/p>\n<pre class=\"brush: bash; title: ; notranslate\" title=\"\">\r\n    &#x5B;javac]   (use -source 7 or higher to enable diamond operator)\r\n    &#x5B;javac]   XXXX error: diamond operator is not supported in -source 1.5\r\n<\/pre>\n<p>\u6240\u4ee5\u5982\u679c\u5b9e\u5728\u8981\u7528 Ant \u7684\u8bdd\uff0c\u9700\u8981\u624b\u52a8\u6539\u6539\uff0cbuild.xml \u540c\u7ea7\u76ee\u5f55\u52a0\u5165 ant.properties \u6587\u4ef6<br \/>\n\u91cc\u9762\u5185\u5bb9\u589e\u52a0<\/p>\n<pre class=\"brush: bash; title: ; notranslate\" title=\"\">\r\njava.source=1.7\r\njava.target=1.7\r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u8fd9\u91cc\u987a\u4fbf\u8bb0\u5f55\u4e0b Android \u5e94\u7528\u5f00\u53d1\u5f53\u4e2d\u7684\u4e00\u4e2a\u4e00\u4e2a\u7684\u5751\uff0c\u5f88\u591a\u65f6\u5019\u6211\u4eec\u90fd\u5728\u9762\u5bf9\u8fd9\u79cd\u95ee\u9898\uff0c\u4e0d\u540c\u7248\u672c\uff0c\u4e0d\u540c\u5382\u5546\u3002\u3002\u3002 \u4e5f\u8bb8\u6ca1\u6709\u8be6\u5c3d\/\u4f18\u96c5\u7684\u89e3\u51b3\u65b9\u6cd5\uff0c\u4f46\u662f\u81f3\u5c11\u95ee\u9898\u5728\u8fd9\u91cc 1. SoundPool.play\u5728 Android 4.3 \u5f53\u4e2d\u6ca1\u6709\u529e\u6cd5 looping \u64ad\u653e https:\/\/code.google.com\/p\/android\/issues\/detail?id=58113 2. Streaming \u64ad\u653e\u58f0\u97f3\u7684\u65f6\u5019(\u6bd4\u5982 AudioManager.MODE_IN_COMMUNICATION)\u65e0\u6cd5\u5207\u6362\u5916\u653e AudioManager.setMode(AudioManager.MODE_IN_CALL); \/\/ \u5207\u6362\u6210\u7535\u8bdd\u6a21\u5f0f\u5c31\u53ef\u4ee5\u5207\u6362 AudioManager.setSpeakerphoneOn(true); 3. \u5728\u67d0\u4e9b\u673a\u5668\u4e0a\uff0c\u6bd4\u5982\u63d2\u5165\u8033\u673a\u7684\u65f6\u5019\u65e0\u6cd5\u5207\u6362\u5916\u653e 4. \u5199\u4e2a\u8ddf Android \u7f16\u8bd1\u76f8\u5173\u7684 Ant \u811a\u672c\u5f53\u4e2d\u8fd8\u662f\u5f88\u8001\u7684 Java 1.5 \u53c2\u89c1 $ANDROID_HOME\/tools\/ant\/build.xml &lt;property name=&quot;java.target&quot; value=&quot;1.5&quot; \/&gt; &lt;property name=&quot;java.source&quot; value=&quot;1.5&quot; \/&gt; \u5bf9\u4e8e\u8ffd\u6c42\u65b0\u7684\u4eba\u6765\u8bf4\u5f53\u7136\u592a\u8001\u4e86\uff0cAndroid \u5f00\u53d1\u90fd\u7528 Java 7\uff0c\u81ea\u5df1\u73a9\u90fd\u7528 Java 9 \u4e86 &#x5B;javac] (use -source 7 or higher to enable &hellip; <a href=\"https:\/\/guoh.ai\/lifelog\/2014\/07\/pitfalls-in-android\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Android \u5f53\u4e2d\u7684\u5751<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_gfmr_meta_descriptions":[],"_gfmr_multilingual_taxonomy_terms":[],"footnotes":""},"categories":[7],"tags":[],"class_list":["post-916","post","type-post","status-publish","format-standard","hentry","category-android"],"_links":{"self":[{"href":"https:\/\/guoh.ai\/lifelog\/wp-json\/wp\/v2\/posts\/916","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/guoh.ai\/lifelog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/guoh.ai\/lifelog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/guoh.ai\/lifelog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/guoh.ai\/lifelog\/wp-json\/wp\/v2\/comments?post=916"}],"version-history":[{"count":4,"href":"https:\/\/guoh.ai\/lifelog\/wp-json\/wp\/v2\/posts\/916\/revisions"}],"predecessor-version":[{"id":967,"href":"https:\/\/guoh.ai\/lifelog\/wp-json\/wp\/v2\/posts\/916\/revisions\/967"}],"wp:attachment":[{"href":"https:\/\/guoh.ai\/lifelog\/wp-json\/wp\/v2\/media?parent=916"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/guoh.ai\/lifelog\/wp-json\/wp\/v2\/categories?post=916"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/guoh.ai\/lifelog\/wp-json\/wp\/v2\/tags?post=916"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}