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Hallo world

I have an Android app,
But first of all , I'm just new in Android .
I collected some files and follow some tuto online.
and I was going to finish an assiment a home work for the school.
but in my code thing are not showing up.
there is no mistake in the code and I don't really know how to debug.
I have to give my work on monday, I'm understress.
Can you help?
thanks
 
You've left it a little late my friend. If you can give a clear explanation of the problem you're having, we may be able to help.
 
@LV426 You right.
But I didn't want to go disturb people for that.
I was sure that I was able to do it and learn from it.
But now I'm under stress.
if you want I can put my code here.
but even I don't know how to put the code here.
in a zip format or to copy and paste?
 
ít's something like a snapchat app.
with 3 tabs.
tab for camera-editing or croping the photo, and tab to share the photo.
Actually I feel a bit ashame to solve it this way .
But I don't have other option in the hands.
Thanks
 
I understand your question, I won't come and lie to people to let them do the job for me.
now it's the time pressure.

I have the firebase option.
user can retrieve and change their status.
I have the 3 tabs.
the camera issue, the code are in the app without error, but when I run it nothing happend.
no error.
I have the tab for editing the photo no code yet.
and the last tab for sharing the photo no code yet
I don't want or need to have 10/10
just need to have something functional to submit and I know I have to learn .
and to learn a lot.
 
I'm sorry but this is a big task to get your app complete for Monday. I couldn't do it even if I spent all weekend working on it.
If you have something specific that doesn't work I could try and advise on that.
Post any code you have in [code][/code] tags.
 
I can have the preview of the camera run.
or see somthing.
there is no error code when I run the app.
if you want I can also add the manifest.xml file or more?
Thanks.


Java: 
CameraFragment.java

package com.example.jlapa.mvdm;


import android.Manifest;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.hardware.Camera;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.v4.app.ActivityCompat;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.TextureView;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.Toast;

import com.google.firebase.auth.FirebaseAuth;

import java.io.IOException;
import java.util.List;

import static com.example.jlapa.mvdm.R.*;


/**
* A simple {@link Fragment} subclass.
*/
public class CameraFragment extends Fragment implements SurfaceHolder.Callback{
    Camera camera;

    Camera.PictureCallback jpegCallback;

    SurfaceView mSurfaceView;
    SurfaceHolder mSurfaceHolder;

    final int CAMERA_REQUEST_CODE = 1;

    public static CameraFragment newInstance() {
        CameraFragment fragment = new CameraFragment();
        return fragment;
        // Required empty public constructor
    }


    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        View view = inflater.inflate(layout.fragment_camera, container, false);

        mSurfaceView = view.findViewById(R.id.surfaceView);
        mSurfaceHolder = mSurfaceView.getHolder();

        if (ActivityCompat.checkSelfPermission(getContext(), android.Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED){
            ActivityCompat.requestPermissions(getActivity(), new String[]{android.Manifest.permission.CAMERA}, CAMERA_REQUEST_CODE);
        }else{
            mSurfaceHolder.addCallback(this);
            mSurfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);


        }

        Button mLogout = view.findViewById(R.id.logout);
        Button mCapture = view.findViewById(R.id.capture);
        mLogout.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Logout();
            }
        });
        mCapture.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                captureImage();
            }
        });

        jpegCallback = new Camera.PictureCallback(){
            @Override
            public void onPictureTaken(byte[] bytes, Camera camera) {
                Intent intent = new Intent(getActivity(), ShowCaptureActivity.class);
                intent.putExtra("capture",bytes);
                startActivity(intent);
                return;
            }
        };



        return view;





    }

    private void captureImage() {
        camera.takePicture(null, null, jpegCallback);
    }


    @Override
    public void surfaceCreated(SurfaceHolder surfaceHolder) {
        camera = Camera.open();
        Camera.Parameters parameters;
        parameters = camera.getParameters();

        camera.setDisplayOrientation(90);
        parameters.setPreviewFrameRate(30);
        parameters.setFocusMode(Camera.Parameters.FOCUS_MODE_CONTINUOUS_PICTURE);


        Camera.Size bestSize = null;
        List<Camera.Size> sizeList = camera.getParameters().getSupportedPreviewSizes();
        bestSize = sizeList.get(0);
        for (int i = 1; i < sizeList.size(); i++){
            if ((sizeList.get(i).width * sizeList.get(i).height)>(bestSize.width * bestSize.height)){
                bestSize = sizeList.get(i);
            }
        }
        parameters.setPreviewSize(bestSize.width, bestSize.height);
        camera.setParameters(parameters);



        try {
            camera.setPreviewDisplay(surfaceHolder);
        } catch (IOException e) {
            e.printStackTrace();
        }

        camera.startPreview();



    }
    @Override
    public void surfaceChanged(SurfaceHolder surfaceHolder, int i, int i1, int i2) {

    }
    @Override
    public void surfaceDestroyed(SurfaceHolder surfaceHolder) {

    }

    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        switch (requestCode){
            case CAMERA_REQUEST_CODE:{
                if (grantResults.length>0 && grantResults[0] == PackageManager.PERMISSION_GRANTED){
                    mSurfaceHolder.addCallback(this);
                    mSurfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);


                }
                else {
                    Toast.makeText(getContext(), "Please provide the permission", Toast.LENGTH_LONG).show();
                }
                break;
            }
        }
    }
    private void Logout() {
        FirebaseAuth.getInstance().signOut();
        Intent intent = new Intent(getContext(), WelcomeActivity.class);
        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
        startActivity(intent);
        return;
    }
}



FragmentCamera.xml

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".CameraFragment">

    <!-- TODO: Update blank fragment layout -->

    <SurfaceView
        android:id="@+id/surfaceView"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />



    <Button

        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Logout"
        android:id="@+id/logout"/>

        <Button

            android:layout_gravity="bottom"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="capture"
            android:id="@+id/capture"/>




</FrameLayout>
 
Hi there,
It may be that the issue lies on connecting the fragment to the activity.
But I still don't know how to solve it.
 
Can't really give an answer as you haven't
a) clearly explained the issue
b) shown the code for the main Activity
 
the issue is that,
I can't open the camera tab with the camera view.
I don't get no error but still nothing to display on the preview camera.
I'm missing something with the tab made of fragments.
Thanks for your feedback LV426


Code: 
package com.example.jlapa.mvdm;

import android.content.Intent;
import android.support.design.widget.TabLayout;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;

import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.auth.FirebaseUser;

public class MainActivity extends AppCompatActivity {

    private Toolbar mToolbar;
    private FirebaseAuth mAuth;

    private ViewPager myViewPager;
    private TabLayout myTabLayout;
    private TabsPagerAdapter myTabsPagerAdapter;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        mAuth = FirebaseAuth.getInstance();

        //Tabs for MainActivity
        myViewPager = (ViewPager) findViewById(R.id.main_tabs_pager);
        myTabsPagerAdapter = new TabsPagerAdapter(getSupportFragmentManager());
        myViewPager.setAdapter(myTabsPagerAdapter);
        myTabLayout = (TabLayout) findViewById(R.id.main_tabs);
        myTabLayout.setupWithViewPager(myViewPager);


        mToolbar = (Toolbar) findViewById(R.id.main_page_toolbar);
        setSupportActionBar(mToolbar);
        getSupportActionBar().setTitle("mvdm");
    }

    @Override
    protected void onStart() {
        super.onStart();
        FirebaseUser currentUser = mAuth.getCurrentUser();
        if(currentUser == null){
            LogOutUser();
        }
    }

    private void LogOutUser() {
        Intent startPageIntent = new Intent(MainActivity.this, StartPageActivity.class);
        startPageIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
        startActivity(startPageIntent);
        finish();
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        super.onCreateOptionsMenu(menu);
        getMenuInflater().inflate(R.menu.main_menu, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        super.onOptionsItemSelected(item);

        if (item.getItemId() == R.id.main_logout_button){
            mAuth.signOut();
            LogOutUser();
        }

        if(item.getItemId() == R.id.main_account_settings_button){
            Intent settingsIntent = new Intent(MainActivity.this, SettingsActivity.class);
            startActivity(settingsIntent);
        }

        if (item.getItemId() == R.id.main_all_users_button){
            Intent allUsersIntent = new Intent(MainActivity.this, AllUsersActivity.class);
            startActivity(allUsersIntent);
        }

        return true;
    }
}
 
I imported your project from Github, but the app won't run. I get this error -

/? E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.jlapa.mvdm, PID: 6498
java.lang.RuntimeException: Unable to get provider com.google.firebase.provider.FirebaseInitProvider: android.content.res.Resources$NotFoundException: Unable to find resource ID #0x7f0e0033
 
Try to fix issue,
then I have some other issue with the app.
below error code:
null
java.lang.NullPointerException
at com.android.ddmlib.Client.read(Client.java:692)
at com.android.ddmlib.MonitorThread.processClientActivity(MonitorThread.java:302)
at com.android.ddmlib.MonitorThread.run(MonitorThread.java:254)
 
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