在Android中加载页面时，ResponsiveVoice无法工作
在Android中加载页面时，ResponsiveVoice无法工作
提问于 2017-05-20 19:52:18
当我单击按钮时，它工作得很好：
<!DOCTYPE html>
<html>
<head>
<script src="https://code.responsivevoice.org/responsivevoice.js"></script>
</head >
<body>
<button onclick="responsiveVoice.speak('Welcome to the Responsive Voice website');">Click</button>
</body>
</html>
但当网页载入网页时，当我想播放演讲时，它就不起作用了：
<!DOCTYPE html>
<html>
<head>
<script src="https://code.responsivevoice.org/responsivevoice.js"></script>
</head >
<body>
<script>
setTimeout(responsiveVoice.speak("Welcome to the Responsive Voice website"),500);
</script>
</body>
</html>Android代码：
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
WebView webView = (WebView) findViewById(R.id.myWebview);
webView.getSettings().setJavaScriptEnabled(true);
webView.loadUrl("file:///android_asset/index.html");
}舱单档案：
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.abdallah.test">
<WebView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/webview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
/>
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>当我单击按钮时，这是系统的日志：
I/chromium: [INFO:CONSOLE(62)] "Voice support NOT ready", source: https://code.responsivevoice.org/responsivevoice.js (62)
I/chromium: [INFO:CONSOLE(62)] "Voice support NOT ready", source: https://code.responsivevoice.org/responsivevoice.js (62)
I/chromium: [INFO:CONSOLE(62)] "Voice support NOT ready", source: https://code.responsivevoice.org/responsivevoice.js (62)
I/chromium: [INFO:CONSOLE(63)] "RV: speechSynthesis present but no system voices found", source: https://code.responsivevoice.org/responsivevoice.js (63)
I/chromium: [INFO:CONSOLE(64)] "RV: Enabling fallback mode", source: https://code.responsivevoice.org/responsivevoice.js (64)
D/MediaResourceGetter: ethernet/wifi connection detected
D/MediaHTTPConnection: filterOutInternalHeaders: key=User-Agent, val= SonyD5803 Build/23.4.A.1.232 stagefright/1.2 (Linux;Android 5.1.1)
D/MediaHTTPConnection: proxy null port 0
D/MediaResourceGetter: resource doesn't have video
D/MediaResourceGetter: extracted valid metadata: MediaMetadata[durationInMilliseconds=0, width=0, height=0, success=true]
E/MediaPlayer-JNI: QCMediaPlayer mediaplayer NOT present
D/MediaPlayer: Couldn't open file on client side, trying server side
D/MediaHTTPConnection: filterOutInternalHeaders: key=User-Agent, val= SonyD5803 Build/23.4.A.1.232 stagefright/1.2 (Linux;Android 5.1.1)
D/MediaHTTPConnection: filterOutInternalHeaders: key=allow-cross-domain-redirect, val= false
D/MediaHTTPConnection: filterOutInternalHeaders: key=x-wap-profile, val= http://uaprof.sonymobile.com/D5803R2321.xml
D/MediaHTTPConnection: proxy null port 0
E/MediaPlayer: Should have subtitle controller already set
D/MediaPlayer: getMetadata当页面加载时，我想播放演讲：
I/chromium: [INFO:CONSOLE(62)] "Voice support NOT ready", source: https://code.responsivevoice.org/responsivevoice.js (62)
I/chromium: [INFO:CONSOLE(62)] "Voice support NOT ready", source: https://code.responsivevoice.org/responsivevoice.js (62)
I/chromium: [INFO:CONSOLE(62)] "Voice support NOT ready", source: https://code.responsivevoice.org/responsivevoice.js (62)
I/chromium: [INFO:CONSOLE(62)] "Voice support NOT ready", source: https://code.responsivevoice.org/responsivevoice.js (62)
I/chromium: [INFO:CONSOLE(62)] "Voice support NOT ready", source: https://code.responsivevoice.org/responsivevoice.js (62)
I/chromium: [INFO:CONSOLE(63)] "RV: speechSynthesis present but no system voices found", source: https://code.responsivevoice.org/responsivevoice.js (63)
I/chromium: [INFO:CONSOLE(64)] "RV: Enabling fallback mode", source: https://code.responsivevoice.org/responsivevoice.js (64)
D/MediaResourceGetter: ethernet/wifi connection detected
D/MediaHTTPConnection: filterOutInternalHeaders: key=User-Agent, val= SonyD5803 Build/23.4.A.1.232 stagefright/1.2 (Linux;Android 5.1.1)
D/MediaHTTPConnection: proxy null port 0
D/MediaResourceGetter: resource doesn't have video
D/MediaResourceGetter: extracted valid metadata: MediaMetadata[durationInMilliseconds=0, width=0, height=0, success=true]回答 1
Stack Overflow用户
回答已采纳
发布于 2017-05-26 15:53:01
ResponsiveVoice说：
在iOS上，一些事件，如语音合成，需要从用户操作(即单击)中触发。例如，这会导致ResponsiveVoice语音调用无法在页面加载时工作。
对于语音合成，用户触发的动作只需进行一次。第一次之后的进一步直接呼叫将如预期的那样工作。
因此，推荐的最佳做法是在体验中添加一个“开始”按钮，供用户单击，并将其用作对responsiveVoice.speak()的初始化调用。如果需要的话，该调用可以有一个空白作为文本，因此不会对用户产生影响。
我认为android是一样的，但是我找到了解决我的问题的方法：
首先，我将加载包含文本到语音的javascript函数的html页面。然后像下面的代码那样加载函数本身：
final Handler handler=new Handler();
handler.postDelayed(new Runnable() {
public void run() {
WebView webView = (WebView) findViewById(R.id.myWebview);
webView.loadUrl("javascript:speak('" + s + "');");
}
}, 5000 );页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/44090224
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