lucasvbr/OutilCuisson
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Code Issues Packages Projects Releases Wiki Activity

persistance des données mais ça marche pas

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This commit is contained in:
NonoL3Robot
2022-03-15 17:45:57 +01:00
parent da95b53ba9
commit 31540b3f62
3 changed files with 171 additions and 55 deletions
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app/src/main/java/com/example/outilcuisson/MainActivity.java
+167 -8
View File
@@ -1,6 +1,8 @@
package com.example.outilcuisson;
import android.content.Context;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
@@ -12,26 +14,183 @@ import androidx.viewpager2.widget.ViewPager2;
import com.google.android.material.tabs.TabLayout;
import com.google.android.material.tabs.TabLayoutMediator;
import java.io.BufferedOutputStream;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.ObjectOutputStream;
import java.io.OutputStreamWriter;
import java.nio.charset.StandardCharsets;
import java.nio.file.Paths;
import java.util.Arrays;
public class MainActivity extends AppCompatActivity implements AjouterFragment.EcouteurAjout {
/**
* Le nom du fichier de sauvegarde
*/
private static final String NOM_FICHIER = "cuisson.txt";
/**
* Tag utilisé dans les messages de log. Les messages de log sont
* affichés en cas
* de problème lors de l'accès au fichier
*/
private static final String TAG = "Cuisson";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ViewPager2 gestionnairePagination = findViewById(R.id.activity_main_viewpager);
ViewPager2 gestionnairePagination = findViewById(
R.id.activity_main_viewpager);
TabLayout gestionnaireOnglet = findViewById(R.id.tab_layout);
gestionnairePagination.setAdapter(new AdaptateurPage(this));
String[] titreOnglet = {
getString(R.string.tab_afficher),
getString(R.string.tab_ajouter)
getString(R.string.tab_afficher), getString(R.string.tab_ajouter)
};
new TabLayoutMediator(gestionnaireOnglet, gestionnairePagination,
(tab, position) -> tab.setText(titreOnglet[position])
).attach();
(tab, position) -> tab.setText(
titreOnglet[position])).attach();
}
@Override
protected void onResume() {
super.onResume();
printFile("print avant readFromFile()");
readFromFile(this);
printFile("print après readFromFile()");
}
@Override
protected void onPause() {
printFile("print avant writeToFile()");
writeToFile("test", this);
printFile("print après writeToFile()");
super.onPause();
}
private String readFromFile(Context context) {
String ret = "";
try {
InputStream inputStream = context.openFileInput(NOM_FICHIER);
if (inputStream != null) {
InputStreamReader inputStreamReader = new InputStreamReader(
inputStream);
BufferedReader bufferedReader = new BufferedReader(
inputStreamReader);
String receiveString = "";
StringBuilder stringBuilder = new StringBuilder();
while ((receiveString = bufferedReader.readLine()) != null) {
stringBuilder.append("\n").append(receiveString);
}
inputStream.close();
ret = stringBuilder.toString();
}
} catch (FileNotFoundException e) {
Log.e("login activity", "File not found: " + e.toString());
} catch (IOException e) {
Log.e("login activity", "Can not read file: " + e.toString());
}
return ret;
}
private void writeToFile(String data, Context context) {
try {
OutputStreamWriter outputStreamWriter = new OutputStreamWriter(
context.openFileOutput(NOM_FICHIER, Context.MODE_PRIVATE));
outputStreamWriter.write(data);
outputStreamWriter.close();
} catch (IOException e) {
Log.e("Exception", "File write failed: " + e.toString());
}
}
// private void writeToFile() {
// try {
// File path = getFilesDir();
// File file = new File(path, NOM_FICHIER);
//
// if (!path.exists()) {
// path.mkdirs();
// }
// FileWriter fw = new FileWriter(file);
// BufferedWriter bw = new BufferedWriter(fw);
//
// printFile("print avant écriture");
//
// for (String s : AfficherFragment.cuissonAffichees) {
// bw.write(s + "\n");
// }
//
// printFile("print après écriture");
//
// fw.close();
// } catch (IOException e) {
// Log.e(TAG, "File write failed: " + e.toString());
// }
// }
//
// private void readFromFile() {
// try {
// File path = getFilesDir();
// File file = new File(path, NOM_FICHIER);
// FileReader fr = new FileReader(file);
// BufferedReader br = new BufferedReader(fr);
// String receiveString;
//
// printFile("print avant lecture");
//
// while ((receiveString = br.readLine()) != null) {
// AfficherFragment.cuissonAffichees.add(receiveString);
// }
//
// printFile("print après lecture");
//
// fr.close();
// } catch (FileNotFoundException e) {
// Log.e(TAG, "File not found: " + e.toString());
// } catch (IOException e) {
// Log.e(TAG, "Can not read file: " + e.toString());
// }
// }
public void printFile(String intitule) {
System.out.println(intitule);
try {
File path = getFilesDir();
File file = new File(path, NOM_FICHIER);
BufferedReader in = new BufferedReader(new FileReader(file));
String line = in.readLine();
while (line != null) {
System.out.println(line);
line = in.readLine();
}
in.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
/* Crée le menu d'options en le désérialisant à partir du fichier
@@ -59,9 +218,9 @@ public class MainActivity extends AppCompatActivity implements AjouterFragment.E
@Override
public void recevoirCuisson(Cuisson cuisson) {
AfficherFragment fragmentAModifier =
(AfficherFragment) getSupportFragmentManager().findFragmentByTag(
"f0");
AfficherFragment fragmentAModifier
= (AfficherFragment) getSupportFragmentManager().findFragmentByTag(
"f0");
if (fragmentAModifier != null) {
fragmentAModifier.addCuisson(cuisson);