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ユーザーがスタートボタンを押すと、名前を入力するようにポップアップが開き、この名前でオーディオがSDカードに保存されます。ユーザーのプレスは、エラーが発生したことjava.lang.IllegalStateException and android app force closingAndroidアプリの強制終了後にalertDialogボタンを押す
レコードアクティビティコードを言っている警告ダイアログのボタンを保存するとき
は今私の問題があります。 線138 = recorder.startでimport android.app.Activity;
import android.content.DialogInterface;
import android.media.MediaRecorder;
import android.os.Environment;
import android.os.Handler;
import android.os.SystemClock;
import android.support.v7.app.AlertDialog;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.Chronometer;
import android.widget.EditText;
import android.widget.RelativeLayout;
import android.widget.Toast;
import java.io.File;
import java.io.IOException;
public class Record extends Activity {
String audioName= "";
private static final String AUDIO_RECORDER_FOLDER = "AudioRecorder";
private MediaRecorder recorder = null;
Chronometer myChronometer;
Handler seekHandler = new Handler();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_record);
myChronometer = (Chronometer) findViewById(R.id.chronometer);
Button recordingButton = (Button) findViewById(R.id.btnStart);
recordingButton.setOnLongClickListener(new View.OnLongClickListener() {
@Override
public boolean onLongClick(View v) {
Toast.makeText(Record.this,
"Start Recording With LongClick", Toast.LENGTH_SHORT)
.show();
enableButtons(true);
startRecording();
return true;
}
});
setButtonHandlers();
enableButtons(false);
}
private void setButtonHandlers() {
((Button) findViewById(R.id.btnStart)).setOnClickListener(btnClick);
((Button) findViewById(R.id.btnStop)).setOnClickListener(btnClick);
}
private void enableButton(int id, boolean isEnable) {
((Button) findViewById(id)).setEnabled(isEnable);
}
private void enableButtons(boolean isRecording) {
enableButton(R.id.btnStart, !isRecording);
enableButton(R.id.btnStop, isRecording);
}
private String getFilename() {
String filepath = Environment.getExternalStorageDirectory().getPath();
File file = new File(filepath, AUDIO_RECORDER_FOLDER);
if (!file.exists()) {
file.mkdirs();
}
return (file.getAbsolutePath() + "/" + audioName + ".wav");
}
private void startRecording() {
displayAlertDialog();
}
private void stopRecording() {
if (null != recorder) {
recorder.stop();
recorder.reset();
recorder.release();
recorder = null;
myChronometer.stop();
}
}
private void displayAlertDialog() {
AlertDialog.Builder alertDialog = new AlertDialog.Builder(
Record.this);
// Setting Dialog Title
alertDialog.setTitle("Would you Like to save your Recording");
// Setting Dialog Message
alertDialog.setMessage("Enter Audio Name");
final EditText editTextAudioName = new EditText(Record.this);
RelativeLayout.LayoutParams lp = new RelativeLayout.LayoutParams(
RelativeLayout.LayoutParams.MATCH_PARENT,
RelativeLayout.LayoutParams.MATCH_PARENT);
editTextAudioName.setLayoutParams(lp);
alertDialog.setView(editTextAudioName);
// Setting Positive "Yes" Button
alertDialog.setPositiveButton("Save",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
// Write your code here to execute after dialog
audioName = editTextAudioName.getText().toString().trim();
recorder = new MediaRecorder();
recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
recorder.setOutputFormat(MediaRecorder.OutputFormat.DEFAULT);
recorder.setAudioEncoder(MediaRecorder.OutputFormat.DEFAULT);
recorder.setOutputFile(getFilename());
recorder.setOnErrorListener(errorListener);
recorder.setOnInfoListener(infoListener);
try {
recorder.prepare();
recorder.start();
} catch (IOException e) {
e.printStackTrace();
}
myChronometer.setBase(SystemClock.elapsedRealtime());
myChronometer.start();
}
}).setNegativeButton("Cancel",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
// Write your code here to execute after dialog
dialog.cancel();
}
});
// Setting Negative "NO" Button
alertDialog.show();
}
private MediaRecorder.OnErrorListener errorListener = new MediaRecorder.OnErrorListener() {
@Override
public void onError(MediaRecorder mr, int what, int extra) {
Toast.makeText(Record.this, "Error: " + what + ", " + extra,
Toast.LENGTH_SHORT).show();
}
};
private MediaRecorder.OnInfoListener infoListener = new MediaRecorder.OnInfoListener() {
@Override
public void onInfo(MediaRecorder mr, int what, int extra) {
Toast.makeText(Record.this,
"Warning: " + what + ", " + extra, Toast.LENGTH_SHORT)
.show();
}
};
private View.OnClickListener btnClick = new View.OnClickListener() {
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.btnStart: {
Toast.makeText(Record.this, "Start Recording",
Toast.LENGTH_SHORT).show();
enableButtons(true);
startRecording();
break;
}
case R.id.btnStop: {
Toast.makeText(Record.this, "Stop Recording",
Toast.LENGTH_SHORT).show();
enableButtons(false);
stopRecording();
// displayFormatDialog();
break;
}
}
}
};
}
私のlogcat
（）。
FATAL EXCEPTION: main
Process: com.example.framesss.myproject, PID: 2254
java.lang.IllegalStateException
at android.media.MediaRecorder.start(Native Method)
at com.example.framesss.myproject.Record$3.onClick(Record.java:138)
at android.support.v7.app.AlertController$ButtonHandler.handleMessage(AlertController.java:157)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5221)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
あなたmannifestに権限を追加しますあなたの
はい、既に許可が追加されています。 –