我正在编写用于记录Facebook使用情况的扩展程序.我发现即使facebook标签崩溃了计时器仍在计数,所以试图解决它.根据文件,似乎没有这样的事件.
是否有用于检测选项卡是否崩溃或崩溃事件的API？
我已经在Android中使用VideoView成功地在wowza上播放视频.现在我得处理我的服务器,UDP端口似乎被阻止了.使用openRTSP命令的证明:
-> % openRTSP rtsp://61.218.52.250:554/live/ch00_0
Opening connection to 61.218.52.250, port 554...
...remote connection opened
Sending request: OPTIONS rtsp://61.218.52.250:554/live/ch00_0 RTSP/1.0
CSeq: 2
User-Agent: openRTSP (LIVE555 Streaming Media v2013.12.16)
Received 105 new bytes of response data.
Received a complete OPTIONS response:
RTSP/1.0 200 OK
CSeq: 2
Server: UBNT Streaming Server v1.2
Public: DESCRIBE, SETUP, TEARDOWN, PLAY
Sending request: DESCRIBE rtsp://61.218.52.250:554/live/ch00_0 RTSP/1.0
CSeq: 3
User-Agent: openRTSP (LIVE555 Streaming Media v2013.12.16)
Accept: application/sdp
Received 562 new bytes of response data.
Received a complete DESCRIBE …在我的机器上本地我的应用程序成功构建并且在单击打开Kotlin活动时工作正常,如:
galleryLayout.setOnClickListener(view -> startActivity(new Intent(PreferencesActivity.this, GalleryActivity.class)));
但在成功构建Jenkins CI之后,单击操作将使应用程序崩溃:
Fatal Exception: java.lang.NoClassDefFoundError: Failed resolution of: Lcom/noodoe/sunray/settings/preferences/gallery/GalleryActivity;
at com.noodoe.sunray.settings.preferences.PreferencesActivity.lambda$setupListener$9(PreferencesActivity.java:248)
at com.noodoe.sunray.settings.preferences.PreferencesActivity.access$lambda$9(PreferencesActivity.java)
at com.noodoe.sunray.settings.preferences.PreferencesActivity$$Lambda$10.onClick(Unknown Source)
at android.view.View.performClick(View.java:5226)
at android.view.View$PerformClick.run(View.java:21266)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:168)
at android.app.ActivityThread.main(ActivityThread.java:5845)
at java.lang.reflect.Method.invoke(Method.java)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:797)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:687)
Caused by java.lang.ClassNotFoundException: Didn't find class "com.noodoe.sunray.settings.preferences.gallery.GalleryActivity" on path: DexPathList[[zip file "/data/app/com.noodoe.sunray.alpha-1/base.apk"],nativeLibraryDirectories=[/data/app/com.noodoe.sunray.alpha-1/lib/arm, /data/app/com.noodoe.sunray.alpha-1/base.apk!/lib/armeabi-v7a, /vendor/lib, /system/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
at com.noodoe.sunray.settings.preferences.PreferencesActivity.lambda$setupListener$9(PreferencesActivity.java:248)
at com.noodoe.sunray.settings.preferences.PreferencesActivity.access$lambda$9(PreferencesActivity.java)
at com.noodoe.sunray.settings.preferences.PreferencesActivity$$Lambda$10.onClick(Unknown Source)
at android.view.View.performClick(View.java:5226)
at android.view.View$PerformClick.run(View.java:21266)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:168)
at android.app.ActivityThread.main(ActivityThread.java:5845) …我尝试播放资源中声明的 mp3 文件，但它显示：
Btn clicked
current media: "qrc://sound/sound/FarAway.mp3"
Error : QMediaPlayer::FormatError
Media state : QMediaPlayer::InvalidMedia
这是我设置媒体的方式：
player = new QMediaPlayer(this);
player->setMedia(QUrl(mediaFilePath));
qDebug() << "current media: " << player->currentMedia().canonicalUrl().toString();
connect(player, SIGNAL(stateChanged(QMediaPlayer::State)), SLOT(handleStateChanged(QMediaPlayer::State)));
connect(player, SIGNAL(mediaStatusChanged(QMediaPlayer::MediaStatus)), SLOT(handleMediaStateChanged(QMediaPlayer::MediaStatus)));
connect(player, SIGNAL(error(QMediaPlayer::Error)), SLOT(handleError(QMediaPlayer::Error)));
根据this post它说QMediaPlayer需要play()在回调之后调用mediaStatusChanged()，这正是我所做的。所以有什么问题？？？
PS 我可以将QMediaPlayer Example 中的 mp3 文件作为本地文件播放。
更新 1：我可以将 mp3 文件作为本地文件播放...