Java 尝试使用和附件发送邮件时Gmail崩溃

试图录制音频，然后用GMAIL应用程序发送，但它会粉碎并告知空指针异常，诸如此类，请参见下图。 我正试图在5秒钟内录制，然后停止计时器并发送电子邮件

还有我的代码：

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    outputFile = Environment.getExternalStorageDirectory().
            getAbsolutePath() + "/recordMemo.3gp";

    eDB = new dbConfig(this);
    sqlDB = eDB.getWritableDatabase();

    smsPreferences = PreferenceManager.getDefaultSharedPreferences(MainActivity.this);
    smsText = smsPreferences.getString("smsTXT", "I'll call you later");
    Log.d("TEXT", smsText);

    gpsManager = new GPSManager();

    gpsManager.startListening(getApplicationContext());
    gpsManager.setGPSCallback((GPSCallback) this);


    StateListener phoneStateListener = new StateListener();
    telephonymanager = (TelephonyManager)getSystemService(TELEPHONY_SERVICE);
    telephonymanager.listen(phoneStateListener, PhoneStateListener.LISTEN_CALL_STATE);

    myRecorder = new MediaRecorder();
    myRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
    myRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
    myRecorder.setAudioEncoder(MediaRecorder.OutputFormat.AMR_NB);
    myRecorder.setOutputFile(outputFile);

    if (savedInstanceState == null) {
        getSupportFragmentManager().beginTransaction()
                .add(R.id.container, new PlaceholderFragment())
                .commit();
    }

    //gpsInfo = (TextView) findViewById(R.id.gps_info);
    //gpsInfo.setText(getString(R.string.gpsSPEED));

    //

}

CountDownTimer start = new CountDownTimer(5000, 1000) {

                        @Override
                        public void onTick(long l) {
                            //Toast.makeText(getApplicationContext(), "Recording!!!",
                            //        Toast.LENGTH_SHORT).show();

                        }

                        @Override
                        public void onFinish() {
                            try {
                                myRecorder.stop();
                                myRecorder.release();
                                myRecorder = null;

                                Log.d("STOP", "STOP");

                                Toast.makeText(getApplicationContext(), "Stop recording...",
                                        Toast.LENGTH_SHORT).show();

                            } catch (IllegalStateException e) {
                                e.printStackTrace();
                            }
                            catch (RuntimeException e) {
                                e.printStackTrace();
                            }

                            if (action.equals("1")) {
                                //Log.d("OUTPUT", outputFile);

                                Intent share = new Intent(Intent.ACTION_SEND);
                                share.setType("application/octet-stream");

                                share.putExtra(Intent.EXTRA_SUBJECT, "My Memo");
                                share.putExtra(Intent.EXTRA_TEXT, "Sending my memo");
                                share.putExtra(Intent.EXTRA_EMAIL,
                                        new String[] { myEmail });

                                share.putExtra(Intent.EXTRA_STREAM,Uri.parse("file://" + outputFile));
                                MainActivity.this.startActivity(share);
                            }

                        }
                    }.start();

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什么是myEmail？它是空的吗？@greenapps否它有一个电子邮件字符串。一切正常，直到我点击gmail应用程序中的发送按钮。