bonjour famille. Je suis un débutant en développement android. voici un petit projet qui consiste a enregistrer des informations et les afficher

mais depuis quelques jours je suis confronter a un problème au niveau de l'affichage alors je viens vous demander de l'aide

voici le fichier MainActivity

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

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:padding="10dp">

        <ImageView
            android:id="@+id/imageView"
            android:layout_alignParentTop="true"
            android:background="@color/colorPrimary"
            android:layout_width="160dp"
            android:layout_height="160dp"
            android:src="@drawable/placeholder"
            android:layout_centerHorizontal="true"
            android:layout_marginTop="18dp"/>
        <EditText
            android:id="@+id/editName"
           android:layout_below="@id/imageView"
            android:hint="Name"
            android:layout_centerHorizontal="true"
            android:ems="10"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"/>
        <EditText
            android:id="@+id/editAge"
            android:layout_below="@id/editName"
            android:hint="Age"
            android:layout_centerHorizontal="true"
            android:ems="10"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"/>
        <EditText
            android:id="@+id/editPhone"
            android:layout_below="@id/editAge"
            android:hint="contact"
            android:layout_centerHorizontal="true"
            android:ems="10"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"/>
        <Button
            android:id="@+id/btnAdd"
            android:layout_below="@id/editPhone"
            android:layout_centerHorizontal="true"
            android:minWidth="160dp"
            android:text="SAVE RECORD"
            style="@style/Widget.AppCompat.Button.Colored"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"/>
        <Button
            android:id="@+id/btnList"
            android:layout_below="@id/btnAdd"
            android:layout_centerHorizontal="true"
            android:minWidth="160dp"
            android:text="RECORD LIST"
            style="@style/Widget.AppCompat.Button.Colored"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"/>
    </RelativeLayout>

</ScrollView>

et voici le fichier la classe MainActivity

package com.example.monapplication;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;

import android.Manifest;
import android.app.Activity;
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.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.Toast;

import com.theartofdev.edmodo.cropper.CropImage;
import com.theartofdev.edmodo.cropper.CropImageView;

import java.io.ByteArrayOutputStream;

public class MainActivity extends AppCompatActivity {
    EditText mEditName, mEditAge, mEditPhone;
    Button mBtnAdd, mBtnList;
    ImageView mImageView;

    final int REQUEST_CODE_GALLERY = 999;
    public static SQLiteHelper mSQLiteHelper;

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

        mEditName = findViewById(R.id.editName);
        mEditAge = findViewById(R.id.editAge);
        mEditPhone = findViewById(R.id.editPhone);
        mImageView = findViewById(R.id.imageView);
        mBtnAdd= findViewById(R.id.btnAdd);
        mBtnList = findViewById(R.id.btnList);

        // Creation de la base de donnee
        mSQLiteHelper = new SQLiteHelper(this,"RECORDDB.sqlite",null,1);

        // Creation de la table dans la base de donnee
        mSQLiteHelper.queryData("CREATE TABLE IF NOT EXISTS RECORD(id INTEGER PRIMARY KEY AUTOINCREMENT,name VARCHAR," +
                "age VARCHAR,phone VARCHAR, image BLOB)");

        mImageView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                ActivityCompat.requestPermissions(MainActivity.this, new String[]{Manifest.permission.READ_EXTERNAL_STORAGE},
                        REQUEST_CODE_GALLERY);
            }
        });
       // Ajouter des donnees dans la base de donnee sqlite
       mBtnAdd.setOnClickListener(new View.OnClickListener() {
           @Override
           public void onClick(View v) {
            try {
                mSQLiteHelper.insertData(mEditName.getText().toString().trim(),mEditAge.getText().toString().trim(),
                        mEditPhone.getText().toString().trim(),
                        mImageViewToByte(mImageView));
                Toast.makeText(MainActivity.this,"Ajouter avec succes",Toast.LENGTH_SHORT).show();
                // Vider les champs
                mEditName.setText("");
                mEditAge.setText("");
                mEditPhone.setText("");
                mImageView.setImageResource(R.drawable.placeholder);
            }catch (Exception e){
                e.printStackTrace();
            }
           }
       });
       // Afficher le contenu de la base de donnee
         mBtnList.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
            // rediriger a l'activite RecordList
              Intent intent = new Intent(getApplicationContext(),RecordListActivity.class);
              startActivity(intent);
            }
        });
    }

    public static byte[] mImageViewToByte(ImageView image) {
        Bitmap bitmap = ((BitmapDrawable)image.getDrawable()).getBitmap();
        ByteArrayOutputStream stream = new ByteArrayOutputStream();
        bitmap.compress(Bitmap.CompressFormat.PNG,100,stream);
        byte[] byteArray = stream.toByteArray();
        return byteArray;
    }

    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {

        if (requestCode == REQUEST_CODE_GALLERY){
            if (grantResults.length> 0 && grantResults[0]== PackageManager.PERMISSION_GRANTED){
                Intent galleryIntent = new Intent(Intent.ACTION_GET_CONTENT);
                galleryIntent.setType("image/*");
                startActivityForResult(galleryIntent,REQUEST_CODE_GALLERY);
            }
            else {
                Toast.makeText(this,"Vous n'avez la permission pour acceder a la gallerie",Toast.LENGTH_SHORT).show();
            }
            return;
        }
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
        if (requestCode == REQUEST_CODE_GALLERY && resultCode == RESULT_OK){
            Uri imageUri = data.getData();
            CropImage.activity(imageUri).setGuidelines(CropImageView.Guidelines.ON)
            .setAspectRatio(1,1).start(this);
        }
        if (requestCode == CropImage.CROP_IMAGE_ACTIVITY_REQUEST_CODE){
            CropImage.ActivityResult result = CropImage.getActivityResult(data);

            if (resultCode == RESULT_OK){
                Uri resultUri = result.getUri();
                // attribuer l'image choisir a imageView
                mImageView.setImageURI(resultUri);
            }
            else if(resultCode == CropImage.CROP_IMAGE_ACTIVITY_RESULT_ERROR_CODE){
                Exception error = result.getError();
            }
        }
        super.onActivityResult(requestCode, resultCode, data);
    }
}

voici la classe Model

package com.example.monapplication;

public class Model {
    private int id;
    private String name;
    private String age;
    private String phone;
    private byte[] image;

    public Model(int id, String name, String age, String phone, byte[] image) {
        this.id = id;
        this.name = name;
        this.age = age;
        this.phone = phone;
        this.image = image;
     }

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getAge() {
        return age;
    }

    public void setAge(String age) {
        this.age = age;
    }

    public String getPhone() {
        return phone;
    }

    public void setPhone(String phone) {
        this.phone = phone;
    }

    public byte[] getImage() {
        return image;
    }

    public void setImage(byte[] image) {
        this.image = image;
    }
}

voici le fichier d'affichage xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".RecordListActivity"
    android:orientation="vertical">

    <ListView
        android:id="@+id/listView"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

    </ListView>

</LinearLayout>

voici la classe d'affichage

package com.example.monapplication;

import androidx.appcompat.app.AppCompatActivity;

import android.database.Cursor;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListView;
import android.widget.Toast;


import java.util.ArrayList;

public class RecordListActivity extends AppCompatActivity {
    ListView mListView;
    ArrayList<Model> mList;
    recordListAdapter mAdapter = null;


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

        mListView = findViewById(R.id.listView);
        mList = new ArrayList<>();
        mAdapter = new recordListAdapter(this ,R.layout.row, mList);
        mListView.setAdapter(mAdapter);
        // recuperer les donnees
        Cursor cursor = MainActivity.mSQLiteHelper.getData("SELECT * FROM RECORD");
        mList.clear();
      while (cursor.moveToNext()){
          int id = cursor.getInt(0);
          String name = cursor.getString(1);
          String age = cursor.getString(2);
          String phone = cursor.getString(3);
          byte[] image = cursor.getBlob(4);

          mList.add(new Model(id,name,age,phone,image));
      }

        mAdapter.notifyDataSetChanged();
        if (mList.size()==0){
            //s'il n'y a pas de donnee dans la table de la base alors il retournera une liste vide
            Toast.makeText(this,"Pas de donnee trouvee",Toast.LENGTH_SHORT).show();
        }
        mListView.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {
            @Override
            public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) {

                return false;
            }
        });
    }
}

 le ficher row.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.cardview.widget.CardView
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    app:cardElevation="3dp"
    app:cardUseCompatPadding="true"
    app:cardCornerRadius="3dp"
    app:cardBackgroundColor="#fff"
    app:contentPadding="5dp">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="horizontal"
        android:layout_gravity="center_vertical">

        <ImageView
            android:id="@+id/imageIcon"
            android:layout_width="100dp"
            android:layout_height="100dp"
            android:src="@drawable/placeholder"/>

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical"
            android:layout_marginLeft="5dp"
            android:layout_marginStart="5dp">

            <TableLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content">

                <TableRow>

                    <TextView
                        android:id="@+id/txtName"
                        android:text="Name :"
                        android:textSize="20dp"
                        android:textColor="#000"
                        android:textStyle="bold"
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"/>

                    <TextView
                        android:text="NameHere"
                        android:textSize="20dp"
                        android:textColor="#000"
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"/>
                </TableRow>

                <TableRow>

                    <TextView
                        android:id="@+id/txtAge"
                        android:text="Age :"
                        android:textSize="20dp"
                        android:textColor="#000"
                        android:textStyle="bold"
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"/>

                    <TextView
                        android:text="ageHere"
                        android:textSize="20dp"
                        android:textColor="#000"
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"/>
                </TableRow>

                <TableRow>

                    <TextView
                        android:id="@+id/txtPhone"
                        android:text="Phone :"
                        android:textSize="20dp"
                        android:textColor="#000"
                        android:textStyle="bold"
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"/>

                    <TextView
                        android:text="phoneHere"
                        android:textSize="20dp"
                        android:textColor="#000"
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"/>
                </TableRow>

            </TableLayout>
        </LinearLayout>
    </LinearLayout>

</androidx.cardview.widget.CardView>

 la classe recordListAdapter

package com.example.monapplication;

import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;

import java.util.ArrayList;

public class recordListAdapter extends BaseAdapter {

    private Context context;
    private int layout;
    private ArrayList<Model> recordList;

    public recordListAdapter(Context context, int layout, ArrayList<Model> recordList) {
        this.context = context;
        this.layout = layout;
        this.recordList = recordList;
    }

    @Override
    public int getCount() {
        return recordList.size();
    }

    @Override
    public Object getItem(int position) {
        return recordList.get(position);
    }

    @Override
    public long getItemId(int position) {
        return position;
    }
      private class ViewHolder{
        ImageView imageView;
        TextView txtName, txtAge, txtPhone;
    }

    @Override
    public View getView(int position, View view, ViewGroup viewGroup) {

        View row = view;
        ViewHolder holder = new ViewHolder();

        if (row == null){
            LayoutInflater inflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            row = inflater.inflate(layout,null);
            holder.txtName = row.findViewById(R.id.txtName);
            holder.txtAge = row.findViewById(R.id.txtAge);
            holder.txtPhone = row.findViewById(R.id.txtPhone);
             holder.imageView = row.findViewById(R.id.imageIcon);

            row.setTag(holder);
        }
        else {
            holder = (ViewHolder)row.getTag();
        }

        Model model = recordList.get(position);
        holder.txtName.setText(model.getName());
        holder.txtAge.setText(model.getAge());
        holder.txtPhone.setText(model.getPhone());

        byte[] recordImage = model.getImage();
        Bitmap bitmap = BitmapFactory.decodeByteArray(recordImage,0,recordImage.length);
        holder.imageView.setImageBitmap(bitmap);

        return row;
    }
}

 la classe SQLIiteHelper

package com.example.monapplication;

import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.database.sqlite.SQLiteStatement;

import androidx.annotation.Nullable;

public class SQLiteHelper extends SQLiteOpenHelper {
    public SQLiteHelper(@Nullable Context context, @Nullable String name, @Nullable SQLiteDatabase.CursorFactory factory, int version) {
        super(context, name, factory, version);
    }
    public void queryData(String sql){
        SQLiteDatabase database = getWritableDatabase();
        database.execSQL(sql);
    }
    // Insertion des donnees
    public void insertData(String name, String age, String phone, byte[]image){
     SQLiteDatabase database = getWritableDatabase();

     // Insertion de la table dans la base de donnee
        String sql = "INSERT INTO RECORD VALUES(NULL,?,?,?,?)";//RECORD est le nom de la table de la base de donnee que nous allons creer dans MainActivity

        SQLiteStatement statement = database.compileStatement(sql);
        statement.clearBindings();

        statement.bindString(1,name);
        statement.bindString(2,age);
        statement.bindString(3,phone);
        statement.bindBlob(4,image);

        statement.executeInsert();
    }
    // Mise a jour des donnees
    public void updateData(String name, String age, String phone, byte[]image, int id){
     SQLiteDatabase database = getWritableDatabase();
     // la requete de mise a jour de la table RECORD
       String sql = "UPDATE RECORD SET name=?, age=?, phone=?,image=? WHERE id=?";

       SQLiteStatement statement = database.compileStatement(sql);

        statement.bindString(1,name);
        statement.bindString(2,age);
        statement.bindString(3,phone);
        statement.bindBlob(4,image);
        statement.bindDouble(5,(double)id);

        statement.execute();
        database.close();
    }
    //Suppression de donnees
    public void deleteData(int id){
        SQLiteDatabase database = getWritableDatabase();
        // requete de suppression a partir de son identifiant
        String sql = "DELETE FROM RECORD WHERE id=?";

        SQLiteStatement statement = database.compileStatement(sql);
        statement.clearBindings();
        statement.bindDouble(1,(double)id);

        statement.execute();
        database.close();
    }
    public Cursor getData(String sql){
        SQLiteDatabase database = getReadableDatabase();

        return database.rawQuery(sql,null);
    }

    @Override
    public void onCreate(SQLiteDatabase db) {

    }

    @Override
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {

    }
}

 voici le message d'erreur

at com.example.monapplication.RecordListActivity.onCreate(RecordListActivity.java:34)
        at android.app.Activity.performCreate(Activity.java:7044)
        at android.app.Activity.performCreate(Activity.java:7035)
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1214)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2759)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2884) 
        at android.app.ActivityThread.-wrap11(Unknown Source:0) 
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1614) 
        at android.os.Handler.dispatchMessage(Handler.java:106) 
        at android.os.Looper.loop(Looper.java:164) 
        at android.app.ActivityThread.main(ActivityThread.java:6524) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:451) 
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:888) 

-
Edité par dieudonnekouadio 7 novembre 2019 à 11:00:55

Bonjour,

Mauvais titre

Le titre est un élément important qui ne doit pas être négligé. N'oubliez pas cette règle simple : le titre idéal résume la question que vous allez poser en une petite phrase. Il doit permettre aux visiteurs de se repérer facilement dans le forum visité et d'identifier le sujet à sa seule lecture.

Vous pouvez utiliser divers préfixes comme [Erreur], [MySQL], [Compatibilité], etc... Aussi, pensez à consulter les règles propres à chaque forum (visibles dans les topics épinglés en haut des sections).

De plus, choisir un bon titre permet de rendre plus faciles les recherches des autres membres.

Les titres de type "besoin d'aide" ou "problème" ne sont pas tolérés.

Pour modifier votre titre, éditez le premier message de votre sujet.

(titre originel : demande d'aide)

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• Règles générales du forum