android - 相机崩溃但 Logcat 中未显示任何错误

Question

我有一个使用相机拍照的应用程序，然后将照片转发到一个电子邮件地址。然而，在我拍完照片后， Activity 关闭并且我崩溃了，如下图所示:

过去很容易跟踪这个错误，因为我总是检查 Logcat。崩溃很好地显示为红色文本和与之相关的文本。但是，不久前，这种行为消失了，我无法跟踪错误。我不知道我是否更改了某些内容，或者是因为我将 Firebase 与该应用关联...

任何人都可以给我任何关于如何在这种情况下查看错误的提示吗？如果我可能错误地做了一些事情来改变这种行为？

发生崩溃时 Logcat 中唯一显示的是:

    01-23 17:03:13.958 27525-6169/packagename V/FA: Connecting to remote service
01-23 17:03:13.988 27525-27525/packagename I/Adreno-EGL: <qeglDrvAPI_eglInitialize:381>: EGL 1.4 QUALCOMM build:  (CL3869936)
                                                                       OpenGL ES Shader Compiler Version: 17.01.12.SPL
                                                                       Build Date: 03/03/14 Mon
                                                                       Local Branch: default
                                                                       Remote Branch: 
                                                                       Local Patches: 
                                                                       Reconstruct Branch: 
01-23 17:03:14.038 27525-6169/packagename V/FA: Activity resumed, time: 2962508140
01-23 17:03:14.128 27525-6169/packagename D/FA: Connected to remote service
01-23 17:03:14.128 27525-6169/packagename V/FA: Processing queued up service tasks: 1
01-23 17:03:19.174 27525-27525/packagename I/PersonaManager: getPersonaService() name persona_policy
01-23 17:03:19.184 27525-27525/packagename V/FA: onActivityCreated
01-23 17:03:19.334 27525-6169/packagename V/FA: Recording user engagement, ms: 5372
01-23 17:03:19.855 27525-6169/packagename V/FA: Activity paused, time: 2962513278
01-23 17:03:19.945 27525-6169/packagename V/FA: Activity resumed, time: 2962513501
01-23 17:03:19.955 27525-6169/packagename V/FA: Inactivity, disconnecting from the service

但它看起来不像是会导致应用程序崩溃的错误。

---

编辑:根据要求，代码如下:主要 Java 文件:

import android.Manifest;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.graphics.Bitmap;
import android.graphics.drawable.BitmapDrawable;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.os.Vibrator;
import android.provider.MediaStore;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.FileProvider;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;

import com.karan.churi.PermissionManager.PermissionManager;

import java.io.File;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class Civic extends AppCompatActivity {
  static final int REQUEST_TAKE_PHOTO = 1;
  private static final int ID_UL_MEU_PENTRU_PERMISIA_DE_WRITING = 1001;
  private static final int ID_UL_MEU_PENTRU_PERMISIA_DE_CAMERA = 1000;
  public String img1;
  public String path;
  public int[] store;
  PermissionManager permissionManager;
  ImageView img;
  EditText editTextEmailValue;
  EditText editTextNumeValue;
  EditText message;
  String mCurrentPhotoPath = null;
  private Bitmap imgBitmap;
  private int mDstWidth;
  private int mDstHeight;
  private Bitmap scaledBitmap;
  private BitmapDrawable drawable;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    getWindow().setBackgroundDrawableResource(R.drawable.statuie_thirty_opac);
    setContentView(R.layout.activity_civic);
    /*       CheckPermissionsCamera();*/
    TextView info = findViewById(R.id.info);
    img = findViewById(R.id.imageV);
    Button btnImg = findViewById(R.id.camera);
    Button btnSend = findViewById(R.id.sendCivic);
    editTextEmailValue = findViewById(R.id.emailCivic);
    editTextNumeValue = findViewById(R.id.numeCivic);
    message = findViewById(R.id.descriereCivic);
    mDstHeight = 720;
    mDstWidth = 720;
    //CHECK PERMISSIONS
    permissionManager = new PermissionManager() {};
    permissionManager.checkAndRequestPermissions(this);
    //END CHECK PERMISSION
  }

  private File createImageFile() throws IOException {
    // Create an image file name
    String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
    String imageFileName = "JPEG_" + timeStamp + "_";
    File storageDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES);
    File image = File.createTempFile(
      imageFileName, /* prefix */
      ".jpg", /* suffix */
      storageDir /* directory */
    );

    // Save a file: path for use with ACTION_VIEW intents
    mCurrentPhotoPath = image.getAbsolutePath();
    return image;
  }

  private void dispatchTakePictureIntent() {
    Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
    // Ensure that there's a camera activity to handle the intent
    if (takePictureIntent.resolveActivity(getPackageManager()) != null) {
      // Create the File where the photo should go
      File photoFile = null;
      try {
        photoFile = createImageFile();
      } catch (IOException ex) {
        // Error occurred while creating the File
      }
      // Continue only if the File was successfully created
      if (photoFile != null) {
        Uri photoURI = FileProvider.getUriForFile(this,
          "com.example.android.fileprovider",
          photoFile);
        takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, photoURI);
        startActivityForResult(takePictureIntent, REQUEST_TAKE_PHOTO);
      }
    }
  }
  //Call back for Dialog!
  public void Dialog(View view) {
    if (check() == 0) {
      AlertDialog.Builder alertBuilder = new AlertDialog.Builder(this);
      alertBuilder.setMessage("Mulțumim pentru sesizare. Te vom contacta în cel mai scurt timp.")
        .setTitle("Mesajul se trimite!")
        .setCancelable(false)
        .setPositiveButton("Închide", new DialogInterface.OnClickListener() {
          @Override
          public void onClick(DialogInterface dialogInterface, int i) {
            sendMail();
            Toast.makeText(getApplicationContext(), "Photo saved in:" + mCurrentPhotoPath, Toast.LENGTH_SHORT).show();
            message.setText("");
            editTextEmailValue.setText("");
            editTextNumeValue.setText("");

          }
        }).show();
    }
  }

  //Conditii!

  private int check() {
    Vibrator vib = (Vibrator) getSystemService(VIBRATOR_SERVICE);
    int counter = 0, leng, x = 300, y = 20;
    if (emailVerif(editTextEmailValue.getText().toString()) == false || editTextEmailValue.getText().toString().equals("")) {
      editTextEmailValue.setError("Nu ați respectat formatul de email : aaa@bbb.ccc");
      editTextEmailValue.requestFocus();
      counter++;
    }
    if (editTextNumeValue.getText().toString().equals("")) {
      editTextNumeValue.setError("Obligatoriu!");
      editTextNumeValue.requestFocus();
      counter++;
    }
    if (message.getText().toString().equals("")) {
      message.setError("Obligatoriu!");
      message.requestFocus();
      counter++;
    }
    if (message.getText().length() > x) {
      leng = message.getText().length() - x;
      message.setError("Ați depășit limita cu : " + leng + " caractere!");
      message.requestFocus();
      counter++;
    } else if (message.getText().length() < y) {
      leng = y - message.getText().length();
      message.setError("Detaliați cu încă : " + leng + " caractere!");
      message.requestFocus();
      counter++;
    }
    if (mCurrentPhotoPath == null) {
      Toast.makeText(getApplicationContext(), "Nu ați făcut poză!", Toast.LENGTH_LONG).show();
      counter++;
    }
    if (counter != 0) {
      vib.vibrate(500);
    }
    return (counter);
  }

  //Return true if email is good else return false
  //AICI VERIFICAM DACA FORMATUL DE LA EMAIL ESTE RESPECTAT
  protected boolean emailVerif(String email) {
    String emailPattern = "^[_A-Za-z0-9-\\+]+(\\.[_A-Za-z0-9-]+)*@" +
      "[A-Za-z0-9-]+(\\.[A-Za-z0-9]+)*(\\.[A-Za-z]{2,})$";

    Pattern pattern = Pattern.compile(emailPattern);
    Matcher matcher = pattern.matcher(email);

    return matcher.matches();
  }

  //Send mail

  private void sendMail() {
    //Getting content for email
    String email = editTextEmailValue.getText().toString().trim();
    String nume = editTextNumeValue.getText().toString().trim();
    String mesaj = message.getText().toString().trim();
    String image = mCurrentPhotoPath.toString().trim();


    //Creating SendMail object
    SendMailCivic sm = new SendMailCivic(this, nume, email, mesaj, image);

    //Executing sendmail to send email
    sm.execute();
  }

  //Dialog for information!
  
  public void infoCivic(View view) {
    AlertDialog.Builder alertBuilder = new AlertDialog.Builder(this);
    alertBuilder.setMessage("Instructions")
      .setTitle("Informatii")
      .setCancelable(false)
      .setPositiveButton("Închide", null).show();

  }

  public void CheckPermissionsCamera(View view) {
    if (ActivityCompat.checkSelfPermission(this, Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) {
      Toast.makeText(this, "Permisii insuficiente.", Toast.LENGTH_LONG).show();
      ActivityCompat.requestPermissions(this,
        new String[] {
          Manifest.permission.CAMERA
        },
        ID_UL_MEU_PENTRU_PERMISIA_DE_CAMERA
      );
    } else if (ActivityCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
      Toast.makeText(this, "Permisii insuficiente.", Toast.LENGTH_LONG).show();
      ActivityCompat.requestPermissions(this,
        new String[] {
          Manifest.permission.WRITE_EXTERNAL_STORAGE
        },
        ID_UL_MEU_PENTRU_PERMISIA_DE_WRITING
      );
    } else {
      dispatchTakePictureIntent();
    }
  }

  @Override
  public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) {
    switch (requestCode) {
      case ID_UL_MEU_PENTRU_PERMISIA_DE_WRITING:
        {
          if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
            Toast.makeText(this, "Ati acceptat permisiunea!", Toast.LENGTH_SHORT).show();
          } else {
            // daca grantResults e gol, a dat cancel
            Toast.makeText(this, "Nu ati acceptat pemisiunea!", Toast.LENGTH_LONG).show();
          }
        }
      case ID_UL_MEU_PENTRU_PERMISIA_DE_CAMERA:
        {
          if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
            Toast.makeText(this, "Ati acceptat permisiunea!", Toast.LENGTH_SHORT).show();
          } else {
            // daca grantResults e gol, a dat cancel
            Toast.makeText(this, "Nu ati acceptat pemisiunea!", Toast.LENGTH_LONG).show();
          }
        }
    }
  }
}

和发送电子邮件的 SendMailCivic.java:

import android.app.ProgressDialog;
import android.content.Context;
import android.os.AsyncTask;
import android.widget.Toast;
import java.util.Properties;
import javax.activation.DataHandler;
import javax.activation.DataSource;
import javax.activation.FileDataSource;
import javax.mail.BodyPart;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Multipart;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;


//Class is extending AsyncTask because this class is going to perform a networking operation
public class SendMailCivic extends AsyncTask<Void, Void, Void> {

    //Declaring Variables
    private Context context;
    private Session session;
    private ProgressDialog progressDialog;

    //Information to send email
    private String email;
    private String mesaj;
    private String nume;
    private String image;

    //Class Constructor
    public SendMailCivic(Context context, String nume, String email, String mesaj, String image) {
        //Initializing variables
        this.context = context;
        this.nume = nume;
        this.email = email;
        this.mesaj = mesaj;
        this.image = image;
    }

    @Override
    protected void onPreExecute() {
        super.onPreExecute();
        progressDialog = ProgressDialog.show(context, "Sending email", "Please wait...", false, false);
        progressDialog.show();
    }


    @Override
    protected void onPostExecute(Void aVoid) {
        super.onPostExecute(aVoid);
        //Showing a success message
        Toast.makeText(context, "Message Sent", Toast.LENGTH_LONG).show();
        progressDialog.cancel();
    }

    @Override
    protected Void doInBackground(Void... params) {
        //Creating properties

        Properties props = new Properties();

        //Configuring properties for gmail
        props.put("mail.smtp.host", "mail.server.com");
        props.put("mail.smtp.socketFactory.port", "465");
        props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
        props.put("mail.smtp.auth", "true");
        props.put("mail.smtp.port", "465");

        //Creating a new session
        session = Session.getDefaultInstance(props,
                new javax.mail.Authenticator() {
                    //Authenticating the password
                    protected PasswordAuthentication getPasswordAuthentication() {
                        return new PasswordAuthentication(Configurare_email.EMAIL, Configurare_email.PASSWORD);
                    }
                });

        try {
            //Creating MimeMessage object
            MimeMessage mm = new MimeMessage(session);

            //Setting sender address
            mm.setFrom(new InternetAddress(Configurare_email.EMAIL));
            //Adding receiver
            //TODO set email in InternetAddress
            mm.addRecipient(Message.RecipientType.TO, new InternetAddress("receiveradress@server.com"));
            //Adding subject
            mm.setSubject("MailSubject");
            Multipart multipart = new MimeMultipart();

            BodyPart mesajPart = new MimeBodyPart();
            
            mesajPart.setText("Name" + nume + "email" + email + "body" + mesaj);
            multipart.addBodyPart(mesajPart);
            BodyPart attach = new MimeBodyPart();
            DataSource source = new FileDataSource(image); //image = path
            attach.setDataHandler(new DataHandler(source));
            attach.setFileName(image);
            multipart.addBodyPart(attach);
            mm.setContent(multipart);

            //Sending email
            Transport.send(mm);

        } catch (MessagingException e) {
            e.printStackTrace();
        }
        return null;
    }
}

list 文件中给出的路径为:

<provider
        android:name="android.support.v4.content.FileProvider"
        android:authorities="com.example.android.fileprovider"
        android:exported="false"
        android:grantUriPermissions="true">
        <meta-data
            android:name="android.support.FILE_PROVIDER_PATHS"
            android:resource="@xml/file_paths" />
    </provider>

@xml/file_paths 包含以下内容:

<< ? xml version = "1.0"
encoding = "utf-8" ? >
  <
  paths >
  <
  external - path name = "my_images" / >
  <
  /paths>

Answer 1

我无法将此作为评论留下，请尝试使用类似...的方法

private Uri getFileUri(String filepath) throws FileNotFoundException {
        Uri uri = Uri.parse(filepath);
        if (uri.getScheme() == null) {
            // No prefix, assuming that provided path is absolute path to file
            File file = new File(filepath);
            if (file.isDirectory()) {
                throw new FileNotFoundException("IsDirectory Not File");
            }
            uri = Uri.parse("file://" + filepath);
        }
        return uri;
    }

然后，通过执行类似 new File(getFileUri(imagePath)); 之类的操作，而不是通过路径传递文件，getFileUri 应该正确处理不正确的文件。然后您可以将文件而不是路径传递到 FileDataSource。