无法解析媒体播放器$ onpreparedlistener [英] Cannot resolve mediaplayer$onpreparedlistener

问题描述

嗨
我正在尝试将播放/暂停/停止添加到存储在资源文件夹中的音频文件

该文件将从webview中的html文件播放。当我尝试将

代码放在一起时，我收到此错误无法解析MediaPlayer $ OnPreparedListener

请参阅下面的代码



@JavascriptInterface

public void playAudio（final String s）{

if（this.mp！= null）{

if（this.mp.isPlaying（））{

this.mp.pause（）;

}

else {

this.mp.start（）;

}

}

else {

try {

final AssetFileDescriptor openFd = this.mContext.getAssets（）。openFd（s）;

（this.mp = new MediaPlayer（））。setDataSource（openFd.getFileDescriptor（ ），openFd.getStartOffset（），openFd.getLength（））;

openFd.close（）;

this.mp.prepare（）;

this.mp.setOnPreparedListener（（MediaPlayer $ OnPreparedL istener）new MediaPlayer $ OnPreparedListener（）{

public void onPrepared（最终MediaPlayer mediaPlayer）{

}

}）;

this.mp.start（）;

}

catch（IllegalArgumentException ex）{

Log.e（this.TAG ，Err-1：+ ex.toString（））;

ex.printStackTrace（）;

}

catch（IllegalStateException ex2 ）{

Log.e（this.TAG，Err-2：+ ex2.toString（））;

ex2.printStackTrace（）;

}

catch（IOException ex3）{

Log.e（this.TAG，Err-3：+ ex3.toString（））;

ex3.printStackTrace（）;

}

}

}

亲切的帮助



我的尝试：



已搜索堆栈溢出

解决方案

OnPreparedListener

请参阅下面的代码



@JavascriptInterface

public void playAudio（final String s）{

if（this.mp！= null）{

if（this.mp.isPlaying（））{

this.mp.pause（）;

}

else {

this.mp.start（）;

}

}

else {

尝试{

final AssetFileDescriptor openFd = this.mContext.getAssets（）。openFd（s）;

（this.mp = new MediaPlayer（））。setDataSource（openFd .getFileDescriptor（），openFd.getStartOffset（），openFd.getLength（））;

openFd.close（）;

this.mp.prepare（）;

this.mp.setOnPreparedListener（（MediaPlayer

OnPreparedListener）新MediaPlayer

OnPreparedListener（）{

public void onPrepared（最终MediaPlayer mediaPlayer）{

}

}）;

this.mp.start（）;

}

catch（IllegalArgumentException ex）{

Log.e（this.TAG，Err-1：+ ex.toString（））;

ex.printStackTrace（）;

}

catch（IllegalStateException ex2）{

Log.e（this.TAG，Err-2：+ ex2.toString（））;

ex2.printStackTrace（）;

}

catch（IOException ex3）{

Log.e（this.TAG，Err- 3：+ ex3.toString（））;

ex3.printStackTrace（）;

}

}

}

请帮助



我尝试了什么：



搜集了堆栈溢出

Hi I am trying to add play/pause/stop to audio file stored in assets folder
the file is to be played from html file in webview. when i tried putting
the code together i am getting this error "cannot resolve MediaPlayer$OnPreparedListener"
see my code below

@JavascriptInterface
public void playAudio(final String s) {
if (this.mp != null) {
if (this.mp.isPlaying()) {
this.mp.pause();
}
else {
this.mp.start();
}
}
else {
try {
final AssetFileDescriptor openFd = this.mContext.getAssets().openFd(s);
(this.mp = new MediaPlayer()).setDataSource(openFd.getFileDescriptor(), openFd.getStartOffset(), openFd.getLength());
openFd.close();
this.mp.prepare();
this.mp.setOnPreparedListener((MediaPlayer$OnPreparedListener)new MediaPlayer$OnPreparedListener() {
public void onPrepared(final MediaPlayer mediaPlayer) {
}
});
this.mp.start();
}
catch (IllegalArgumentException ex) {
Log.e(this.TAG, "Err-1: " + ex.toString());
ex.printStackTrace();
}
catch (IllegalStateException ex2) {
Log.e(this.TAG, "Err-2: " + ex2.toString());
ex2.printStackTrace();
}
catch (IOException ex3) {
Log.e(this.TAG, "Err-3: " + ex3.toString());
ex3.printStackTrace();
}
}
}
Kindly help

What I have tried:

Have searched on stack overflow

解决方案

OnPreparedListener"
see my code below

@JavascriptInterface
public void playAudio(final String s) {
if (this.mp != null) {
if (this.mp.isPlaying()) {
this.mp.pause();
}
else {
this.mp.start();
}
}
else {
try {
final AssetFileDescriptor openFd = this.mContext.getAssets().openFd(s);
(this.mp = new MediaPlayer()).setDataSource(openFd.getFileDescriptor(), openFd.getStartOffset(), openFd.getLength());
openFd.close();
this.mp.prepare();
this.mp.setOnPreparedListener((MediaPlayer

OnPreparedListener)new MediaPlayer

OnPreparedListener() {
public void onPrepared(final MediaPlayer mediaPlayer) {
}
});
this.mp.start();
}
catch (IllegalArgumentException ex) {
Log.e(this.TAG, "Err-1: " + ex.toString());
ex.printStackTrace();
}
catch (IllegalStateException ex2) {
Log.e(this.TAG, "Err-2: " + ex2.toString());
ex2.printStackTrace();
}
catch (IOException ex3) {
Log.e(this.TAG, "Err-3: " + ex3.toString());
ex3.printStackTrace();
}
}
}
Kindly help

What I have tried:

Have searched on stack overflow

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