我们应该如何修复此代码。在过去的 24 小时里，我们一直在尝试将音频保存在 Android 中
我们疲惫的眼睛将非常感谢您的帮助！
我们正在尝试创建一个分析麦克风输入的音频分析应用程序
package com.example.opus2;
import android.content.ContentValues;
import android.media.MediaRecorder;
import android.os.Bundle;
import android.provider.MediaStore;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import java.io.IOException;
public class audioTest extends MainActivity{
public int saveMarker=0;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.save_test);
}
public void onClick(View view){
switch (view.getId()){
case R.id.saveBttn: {
Button saveButton= (Button) findViewById(R.id.saveBttn);
if(saveMarker==0){
TextView done = (TextView) findViewById(R.id.done_text);
done.setText("Done2");
saveButton.setText("Saved?");
saveMarker=1;
String save_file = "viola";
try {
recordAudio(save_file);
} catch (IOException e) {
e.printStackTrace();
}
break;
}
else{
saveButton.setText("Save");
saveMarker=0;
break;
}
}
}
}
public void recordAudio(String fileName) throws IOException {
TextView done = (TextView) findViewById(R.id.done_text);
done.setText("Done1");
final MediaRecorder recorder = new MediaRecorder();
ContentValues values = new ContentValues(3);
values.put(MediaStore.MediaColumns.TITLE, fileName);
recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
recorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
recorder.setAudioEncoder(MediaRecorder.AudioEncoder.DEFAULT);
recorder.setOutputFile("/sdcard/sound/" + fileName+".mp4");
try {
recorder.prepare();
} catch (Exception e){
e.printStackTrace();
}
/* final ProgressDialog mProgressDialog = new ProgressDialog(audioTest.this);
mProgressDialog.setTitle(R.string.lbl_recording);
mProgressDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
mProgressDialog.setButton("Stop recording", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
mProgressDialog.dismiss();
recorder.stop();
recorder.release();
}
});
mProgressDialog.setOnCancelListener(new DialogInterface.OnCancelListener() {
public void onCancel(DialogInterface p1) {
recorder.stop();
recorder.release();
}
});
mProgressDialog.show();
*/
recorder.start();
done = (TextView) findViewById(R.id.done_text);
done.setText("Done");
}
}
----错误------
11-02 22:29:18.416 3256-3256/com.example.opus2 E/AndroidRuntime﹕ FATAL EXCEPTION: main
java.lang.IllegalStateException: Could not execute method of the activity
at android.view.View$1.onClick(View.java:3599)
at android.view.View.performClick(View.java:4204)
at android.view.View$PerformClick.run(View.java:17355)
at android.os.Handler.handleCallback(Handler.java:725)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5041)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at android.view.View$1.onClick(View.java:3594)
at android.view.View.performClick(View.java:4204)
at android.view.View$PerformClick.run(View.java:17355)
at android.os.Handler.handleCallback(Handler.java:725)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5041)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.IllegalStateException
at android.media.MediaRecorder.start(Native Method)
at com.example.opus2.audioTest.recordAudio(audioTest.java:96)
at com.example.opus2.audioTest.onClick(audioTest.java:40)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at android.view.View$1.onClick(View.java:3594)
at android.view.View.performClick(View.java:4204)
at android.view.View$PerformClick.run(View.java:17355)
at android.os.Handler.handleCallback(Handler.java:725)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5041)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
at dalvik.system.NativeStart.main(Native Method)