音频无法在android中播放. android.content.res.Resources $ NotFoundException:资源ID#0x0 [英] Audio not playing in android. android.content.res.Resources$NotFoundException: Resource ID #0x0

问题描述

我正在尝试在Android中播放音频文件，但似乎崩溃了，并给出了ResourcesNotFoundException.音频文件保存在res内的原始文件夹中.音频文件的名称由随机生成的数字确定，然后将其连接为音频".

I am trying to play an audio file in Android but it seems to crash and give a the ResourcesNotFoundException. The audio file is saved in the raw folder inside res. The name of the audio file is determined by a randomly generated number which is then concatenated to "audio".

int res = getResources().getIdentifier ( "audio"+arrayIndex, "raw","com.din.askak" );
MediaPlayer mPlayer = MediaPlayer.create ( MainActivity.this, res );

在logcat中，似乎在创建mediaPlayer的行上引发了异常.我不知道我似乎在做错什么??

In the logcat it seems to throw the exception on the line creating the mediaPlayer. I don't know what I seem to be doing wrong???

推荐答案

不鼓励使用getIdentifier()函数.按标识符而不是按名称检索资源要高效得多.

Use of getIdentifier() function is discouraged. It is much more efficient to retrieve resources by identifier rather than by name.

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