04-28 06:46:42.892: E/AndroidRuntime(387): FATAL EXCEPTION: main
04-28 06:46:42.892: E/AndroidRuntime(387): java.lang.RuntimeException: Unable to start service com.java.android.MusicService@40537020 with Intent { act=com.android.musicPlayer.PLAY_ACTION cmp=com.java.android/.MusicService }: java.lang.NullPointerException
04-28 06:46:42.892: E/AndroidRuntime(387): at android.app.ActivityThread.handleServiceArgs(ActivityThread.java:2052)
04-28 06:46:42.892: E/AndroidRuntime(387): at android.app.ActivityThread.access$2800(ActivityThread.java:117)
04-28 06:46:42.892: E/AndroidRuntime(387): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:994)
04-28 06:46:42.892: E/AndroidRuntime(387): at android.os.Handler.dispatchMessage(Handler.java:99)
04-28 06:46:42.892: E/AndroidRuntime(387): at android.os.Looper.loop(Looper.java:123)
04-28 06:46:42.892: E/AndroidRuntime(387): at android.app.ActivityThread.main(ActivityThread.java:3683)
04-28 06:46:42.892: E/AndroidRuntime(387): at java.lang.reflect.Method.invokeNative(Native Method)
04-28 06:46:42.892: E/AndroidRuntime(387): at java.lang.reflect.Method.invoke(Method.java:507)
04-28 06:46:42.892: E/AndroidRuntime(387): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
04-28 06:46:42.892: E/AndroidRuntime(387): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
04-28 06:46:42.892: E/AndroidRuntime(387): at dalvik.system.NativeStart.main(Native Method)
04-28 06:46:42.892: E/AndroidRuntime(387): Caused by: java.lang.NullPointerException
04-28 06:46:42.892: E/AndroidRuntime(387): at android.media.MediaPlayer.setDataSource(MediaPlayer.java:707)
04-28 06:46:42.892: E/AndroidRuntime(387): at android.media.MediaPlayer.setDataSource(MediaPlayer.java:692)
04-28 06:46:42.892: E/AndroidRuntime(387): at android.media.MediaPlayer.create(MediaPlayer.java:628)
04-28 06:46:42.892: E/AndroidRuntime(387): at android.media.MediaPlayer.create(MediaPlayer.java:609)
04-28 06:46:42.892: E/AndroidRuntime(387): at com.java.android.MusicService.initByPath(MusicService.java:89)
04-28 06:46:42.892: E/AndroidRuntime(387): at com.java.android.MusicService.onStart(MusicService.java:56)
04-28 06:46:42.892: E/AndroidRuntime(387): at android.app.Service.onStartCommand(Service.java:428)
04-28 06:46:42.892: E/AndroidRuntime(387): at android.app.ActivityThread.handleServiceArgs(ActivityThread.java:2039)
04-28 06:46:42.892: E/AndroidRuntime(387): ... 10 more
跪求大神们指出错误啊大神
04-28 06:46:42.892: E/AndroidRuntime(387): java.lang.RuntimeException: Unable to start service com.java.android.MusicService@40537020 with Intent { act=com.android.musicPlayer.PLAY_ACTION cmp=com.java.android/.MusicService }: java.lang.NullPointerException
04-28 06:46:42.892: E/AndroidRuntime(387): at android.app.ActivityThread.handleServiceArgs(ActivityThread.java:2052)
04-28 06:46:42.892: E/AndroidRuntime(387): at android.app.ActivityThread.access$2800(ActivityThread.java:117)
04-28 06:46:42.892: E/AndroidRuntime(387): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:994)
04-28 06:46:42.892: E/AndroidRuntime(387): at android.os.Handler.dispatchMessage(Handler.java:99)
04-28 06:46:42.892: E/AndroidRuntime(387): at android.os.Looper.loop(Looper.java:123)
04-28 06:46:42.892: E/AndroidRuntime(387): at android.app.ActivityThread.main(ActivityThread.java:3683)
04-28 06:46:42.892: E/AndroidRuntime(387): at java.lang.reflect.Method.invokeNative(Native Method)
04-28 06:46:42.892: E/AndroidRuntime(387): at java.lang.reflect.Method.invoke(Method.java:507)
04-28 06:46:42.892: E/AndroidRuntime(387): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
04-28 06:46:42.892: E/AndroidRuntime(387): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
04-28 06:46:42.892: E/AndroidRuntime(387): at dalvik.system.NativeStart.main(Native Method)
04-28 06:46:42.892: E/AndroidRuntime(387): Caused by: java.lang.NullPointerException
04-28 06:46:42.892: E/AndroidRuntime(387): at android.media.MediaPlayer.setDataSource(MediaPlayer.java:707)
04-28 06:46:42.892: E/AndroidRuntime(387): at android.media.MediaPlayer.setDataSource(MediaPlayer.java:692)
04-28 06:46:42.892: E/AndroidRuntime(387): at android.media.MediaPlayer.create(MediaPlayer.java:628)
04-28 06:46:42.892: E/AndroidRuntime(387): at android.media.MediaPlayer.create(MediaPlayer.java:609)
04-28 06:46:42.892: E/AndroidRuntime(387): at com.java.android.MusicService.initByPath(MusicService.java:89)
04-28 06:46:42.892: E/AndroidRuntime(387): at com.java.android.MusicService.onStart(MusicService.java:56)
04-28 06:46:42.892: E/AndroidRuntime(387): at android.app.Service.onStartCommand(Service.java:428)
04-28 06:46:42.892: E/AndroidRuntime(387): at android.app.ActivityThread.handleServiceArgs(ActivityThread.java:2039)
04-28 06:46:42.892: E/AndroidRuntime(387): ... 10 more
跪求大神们指出错误啊大神
解决方案 »
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Bundle songList = getIntent().getExtras();
path = songList.getString("song_path");
uri = Uri.parse(path);上面的代码是在 MusicPlayer类里面的,我想在Service里面获取这个uri啊,请问怎么获取呢
05-01 03:45:30.542: D/MusicPlayer(290): path
05-01 03:45:30.642: D/MusicService(290): onCreate__
05-01 03:45:30.642: D/AndroidRuntime(290): Shutting down VM
uri = Uri.parse(path); 看一下显示出来的路径的音乐文件是否存在。
05-01 08:33:59.981: D/MusicService(351): onCreate__
05-01 08:34:01.042: I/myLog(351): 歌曲路径:/sdcard/KIELUN.mp3
大神,按照您做的就出现这个
你在这句的前面再加上一句Log.i("myLog","歌曲路径:" + path);
uri = Uri.parse(path); 看一下显示出来的路径的音乐文件是否存在。
大神,它出现这个情况
05-01 08:44:16.476: I/myLog(404): 歌曲路径:null
05-01 08:44:16.506: D/MusicService(404): onCreate__
05-01 08:44:16.516: D/AndroidRuntime(404): Shutting down VM
05-01 09:20:56.261: I/myLog(296): 歌曲路径:/sdcard/haha.mp3
05-01 09:20:56.281: D/MusicService(296): onCreate__
05-01 09:20:56.292: D/AndroidRuntime(296): Shutting down VM
if(path != null)
{
......继续播放
}
else
{
.....提示路径不存在。
}如果你确定SDCARD上的根目录存在haha.mp3的话,你在uri = Uri.parse(path); 有前面加一句:
path = Environment.getExternalStorageDirectory() + "/haha.mp3");
uri = Uri.parse(path);
测试一下用固定的真实路径是否可以播放。
06-10 12:04:43.538: E/AndroidRuntime(304): java.lang.StringIndexOutOfBoundsException
06-10 12:04:43.538: E/AndroidRuntime(304): at java.lang.AbstractStringBuilder.substring(AbstractStringBuilder.java:642)
06-10 12:04:43.538: E/AndroidRuntime(304): at java.lang.StringBuffer.substring(StringBuffer.java:715)
06-10 12:04:43.538: E/AndroidRuntime(304): at mars.com.Searche_Line$DoSearchListener.getHtmlStr(Searche_Line.java:159)
06-10 12:04:43.538: E/AndroidRuntime(304): at mars.com.Searche_Line$DoSearchListener.onClick(Searche_Line.java:72)
06-10 12:04:43.538: E/AndroidRuntime(304): at android.view.View.performClick(View.java:2408)
06-10 12:04:43.538: E/AndroidRuntime(304): at android.view.View$PerformClick.run(View.java:8816)
06-10 12:04:43.538: E/AndroidRuntime(304): at android.os.Handler.handleCallback(Handler.java:587)
06-10 12:04:43.538: E/AndroidRuntime(304): at android.os.Handler.dispatchMessage(Handler.java:92)
06-10 12:04:43.538: E/AndroidRuntime(304): at android.os.Looper.loop(Looper.java:123)
06-10 12:04:43.538: E/AndroidRuntime(304): at android.app.ActivityThread.main(ActivityThread.java:4627)
06-10 12:04:43.538: E/AndroidRuntime(304): at java.lang.reflect.Method.invokeNative(Native Method)
06-10 12:04:43.538: E/AndroidRuntime(304): at java.lang.reflect.Method.invoke(Method.java:521)
06-10 12:04:43.538: E/AndroidRuntime(304): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
06-10 12:04:43.538: E/AndroidRuntime(304): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
06-10 12:04:43.538: E/AndroidRuntime(304): at dalvik.system.NativeStart.main(Native Method)