diff --git a/Assignments/Files/.gitignore b/Assignments/Files/.gitignore new file mode 100644 index 0000000..aa724b7 --- /dev/null +++ b/Assignments/Files/.gitignore @@ -0,0 +1,15 @@ +*.iml +.gradle +/local.properties +/.idea/caches +/.idea/libraries +/.idea/modules.xml +/.idea/workspace.xml +/.idea/navEditor.xml +/.idea/assetWizardSettings.xml +.DS_Store +/build +/captures +.externalNativeBuild +.cxx +local.properties diff --git a/Assignments/Files/.idea/.gitignore b/Assignments/Files/.idea/.gitignore new file mode 100644 index 0000000..26d3352 --- /dev/null +++ b/Assignments/Files/.idea/.gitignore @@ -0,0 +1,3 @@ +# Default ignored files +/shelf/ +/workspace.xml diff --git a/Assignments/Files/.idea/appInsightsSettings.xml b/Assignments/Files/.idea/appInsightsSettings.xml new file mode 100644 index 0000000..371f2e2 --- /dev/null +++ b/Assignments/Files/.idea/appInsightsSettings.xml @@ -0,0 +1,26 @@ + + + + + + \ No newline at end of file diff --git a/Assignments/Files/.idea/compiler.xml b/Assignments/Files/.idea/compiler.xml new file mode 100644 index 0000000..b589d56 --- /dev/null +++ b/Assignments/Files/.idea/compiler.xml @@ -0,0 +1,6 @@ + + + + + + \ No newline at end of file diff --git a/Assignments/Files/.idea/deploymentTargetDropDown.xml b/Assignments/Files/.idea/deploymentTargetDropDown.xml new file mode 100644 index 0000000..0c0c338 --- /dev/null +++ b/Assignments/Files/.idea/deploymentTargetDropDown.xml @@ -0,0 +1,10 @@ + + + + + + + + + + \ No newline at end of file diff --git a/Assignments/Files/.idea/discord.xml b/Assignments/Files/.idea/discord.xml new file mode 100644 index 0000000..d8e9561 --- /dev/null +++ b/Assignments/Files/.idea/discord.xml @@ -0,0 +1,7 @@ + + + + + \ No newline at end of file diff --git a/Assignments/Files/.idea/gradle.xml b/Assignments/Files/.idea/gradle.xml new file mode 100644 index 0000000..0897082 --- /dev/null +++ b/Assignments/Files/.idea/gradle.xml @@ -0,0 +1,19 @@ + + + + + + + \ No newline at end of file diff --git a/Assignments/Files/.idea/migrations.xml b/Assignments/Files/.idea/migrations.xml new file mode 100644 index 0000000..f8051a6 --- /dev/null +++ b/Assignments/Files/.idea/migrations.xml @@ -0,0 +1,10 @@ + + + + + + \ No newline at end of file diff --git a/Assignments/Files/.idea/misc.xml b/Assignments/Files/.idea/misc.xml new file mode 100644 index 0000000..8978d23 --- /dev/null +++ b/Assignments/Files/.idea/misc.xml @@ -0,0 +1,9 @@ + + + + + + + + \ No newline at end of file diff --git a/Assignments/Files/.idea/vcs.xml b/Assignments/Files/.idea/vcs.xml new file mode 100644 index 0000000..b2bdec2 --- /dev/null +++ b/Assignments/Files/.idea/vcs.xml @@ -0,0 +1,6 @@ + + + + + + \ No newline at end of file diff --git a/Assignments/Files/app/.gitignore b/Assignments/Files/app/.gitignore new file mode 100644 index 0000000..42afabf --- /dev/null +++ b/Assignments/Files/app/.gitignore @@ -0,0 +1 @@ +/build \ No newline at end of file diff --git a/Assignments/Files/app/build.gradle.kts b/Assignments/Files/app/build.gradle.kts new file mode 100644 index 0000000..117728b --- /dev/null +++ b/Assignments/Files/app/build.gradle.kts @@ -0,0 +1,40 @@ +plugins { + alias(libs.plugins.androidApplication) +} + +android { + namespace = "asdv.lisset.files" + compileSdk = 34 + + defaultConfig { + applicationId = "asdv.lisset.files" + minSdk = 21 + targetSdk = 34 + versionCode = 1 + versionName = "1.0" + + testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner" + } + + buildTypes { + release { + isMinifyEnabled = false + proguardFiles(getDefaultProguardFile("proguard-android-optimize.txt"), "proguard-rules.pro") + } + } + compileOptions { + sourceCompatibility = JavaVersion.VERSION_1_8 + targetCompatibility = JavaVersion.VERSION_1_8 + } +} + +dependencies { + + implementation(libs.appcompat) + implementation(libs.material) + implementation(libs.activity) + implementation(libs.constraintlayout) + testImplementation(libs.junit) + androidTestImplementation(libs.ext.junit) + androidTestImplementation(libs.espresso.core) +} \ No newline at end of file diff --git a/Assignments/Files/app/proguard-rules.pro b/Assignments/Files/app/proguard-rules.pro new file mode 100644 index 0000000..481bb43 --- /dev/null +++ b/Assignments/Files/app/proguard-rules.pro @@ -0,0 +1,21 @@ +# Add project specific ProGuard rules here. +# You can control the set of applied configuration files using the +# proguardFiles setting in build.gradle. +# +# For more details, see +# http://developer.android.com/guide/developing/tools/proguard.html + +# If your project uses WebView with JS, uncomment the following +# and specify the fully qualified class name to the JavaScript interface +# class: +#-keepclassmembers class fqcn.of.javascript.interface.for.webview { +# public *; +#} + +# Uncomment this to preserve the line number information for +# debugging stack traces. +#-keepattributes SourceFile,LineNumberTable + +# If you keep the line number information, uncomment this to +# hide the original source file name. +#-renamesourcefileattribute SourceFile \ No newline at end of file diff --git a/Assignments/Files/app/src/androidTest/java/asdv/lisset/files/ExampleInstrumentedTest.java b/Assignments/Files/app/src/androidTest/java/asdv/lisset/files/ExampleInstrumentedTest.java new file mode 100644 index 0000000..f4cf200 --- /dev/null +++ b/Assignments/Files/app/src/androidTest/java/asdv/lisset/files/ExampleInstrumentedTest.java @@ -0,0 +1,26 @@ +package asdv.lisset.files; + +import android.content.Context; + +import androidx.test.platform.app.InstrumentationRegistry; +import androidx.test.ext.junit.runners.AndroidJUnit4; + +import org.junit.Test; +import org.junit.runner.RunWith; + +import static org.junit.Assert.*; + +/** + * Instrumented test, which will execute on an Android device. + * + * @see Testing documentation + */ +@RunWith(AndroidJUnit4.class) +public class ExampleInstrumentedTest { + @Test + public void useAppContext() { + // Context of the app under test. + Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext(); + assertEquals("asdv.lisset.files", appContext.getPackageName()); + } +} \ No newline at end of file diff --git a/Assignments/Files/app/src/main/AndroidManifest.xml b/Assignments/Files/app/src/main/AndroidManifest.xml new file mode 100644 index 0000000..bfc6987 --- /dev/null +++ b/Assignments/Files/app/src/main/AndroidManifest.xml @@ -0,0 +1,26 @@ + + + + + + + + + + + + + + \ No newline at end of file diff --git a/Assignments/Files/app/src/main/java/asdv/lisset/files/A.java b/Assignments/Files/app/src/main/java/asdv/lisset/files/A.java new file mode 100644 index 0000000..fefaeb1 --- /dev/null +++ b/Assignments/Files/app/src/main/java/asdv/lisset/files/A.java @@ -0,0 +1,20 @@ +package asdv.lisset.files; + +import androidx.annotation.NonNull; + +import java.io.Serializable; + +public class A implements Serializable { + int x = 10; + double d = 3.14; + String s = "this is object A"; + + @NonNull + @Override + public String toString() { + return "A{" + "x=" + x + + ", d=" + d + + "s='" + s + '\'' + + '}'; + } +} \ No newline at end of file diff --git a/Assignments/Files/app/src/main/java/asdv/lisset/files/MainActivity.java b/Assignments/Files/app/src/main/java/asdv/lisset/files/MainActivity.java new file mode 100644 index 0000000..2ccfbd4 --- /dev/null +++ b/Assignments/Files/app/src/main/java/asdv/lisset/files/MainActivity.java @@ -0,0 +1,183 @@ +package asdv.lisset.files; + +import android.content.Context; +import android.os.Bundle; +import android.util.Log; +import android.view.View; +import android.widget.Button; +import android.widget.TextView; +import android.widget.Toast; + +import androidx.activity.EdgeToEdge; +import androidx.annotation.NonNull; +import androidx.appcompat.app.AppCompatActivity; +import androidx.core.graphics.Insets; +import androidx.core.view.ViewCompat; +import androidx.core.view.WindowInsetsCompat; + +import java.io.BufferedReader; +import java.io.FileInputStream; +import java.io.FileNotFoundException; +import java.io.IOException; +import java.io.InputStream; +import java.io.InputStreamReader; +import java.io.ObjectInputStream; +import java.io.ObjectOutputStream; +import java.io.OutputStreamWriter; +import java.io.Serializable; +import java.util.ArrayList; +import java.util.List; + +public class MainActivity extends AppCompatActivity { + + TextView textViewOutput; + TextView editName; + TextView editAge; + Button buttonReadBinaryClassA; + Button writeBinaryButton; + Button addPersonObject; + String fname = "testFile"; + + @Override + protected void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + setContentView(R.layout.activity_main); + + editName = findViewById(R.id.editName); + editAge = findViewById(R.id.editAge); + addPersonObject = findViewById(R.id.add_person_button); + writeBinaryButton = findViewById(R.id.button_write_binary); + + buttonReadBinaryClassA = findViewById(R.id.button_read_binary); + textViewOutput = findViewById(R.id.fileContents); + + Singleton singleton = Singleton.get(this); + + ArrayList list = (ArrayList) singleton.getList(); + + addPersonObject.setOnClickListener(new View.OnClickListener() { + @Override + public void onClick(View v) { + + Person person = new Person(); + person.setName(editName.getText().toString()); + try { + String ageInt = editAge.getText().toString(); + Log.i("FilesApp", "ageInt: " + ageInt); + person.setAge(Integer.parseInt(ageInt)); + } catch (NumberFormatException ex) { + Toast.makeText(MainActivity.this, "Unable to parse integer.", Toast.LENGTH_LONG).show(); + } + list.add(person); + } + }); + writeBinaryButton.setOnClickListener(new View.OnClickListener() { + @Override + public void onClick(View view) { + Context c = getApplicationContext(); + writeFileToObject(c,fname, (Serializable) list); + } + }); + buttonReadBinaryClassA.setOnClickListener(new View.OnClickListener() { + @Override + public void onClick(View v) + { + Context c = getApplicationContext(); + String s = readFromFileObject(c, fname); + textViewOutput.setText(s); + } + }); + + } + private void writeToFile(Context context, String fileName, String data) + { + try + { + OutputStreamWriter outputStreamWriter = + new OutputStreamWriter(context.openFileOutput(fileName, Context.MODE_PRIVATE)); + outputStreamWriter.write(data); + outputStreamWriter.close(); + Toast.makeText(MainActivity.this, "success", Toast.LENGTH_LONG).show(); + } + catch (FileNotFoundException e) + { + Log.e("Exception: ", e.toString()); + } catch (IOException e) + { + Log.e("Exception: ", e.toString()); + } + + + } + private String readFromFile(Context context, String fileName) + { + String ret = ""; + try + { + InputStream inputStream = context.openFileInput(fileName); + if (inputStream != null) + { + InputStreamReader inputStreamReader = new InputStreamReader(inputStream); + BufferedReader bufferedReader = new BufferedReader(inputStreamReader); + StringBuilder stringBuilder = new StringBuilder(); + while ((ret = bufferedReader.readLine()) != null) + { + stringBuilder.append("\n").append(ret); + } + inputStream.close(); + ret = stringBuilder.toString(); + } + } + catch (Exception e) + { + Toast.makeText(MainActivity.this,e.toString(), Toast.LENGTH_LONG).show(); + } + + + return ret; + } + private void writeFileToObject(Context context, String fileName, Serializable object) + { + try (ObjectOutputStream oos = new ObjectOutputStream(context.openFileOutput(fileName, + Context.MODE_PRIVATE))){ + oos.writeObject(object); + Toast.makeText(MainActivity.this,"success", Toast.LENGTH_LONG).show(); + } catch (FileNotFoundException e) { + Toast.makeText(MainActivity.this,e.toString(), Toast.LENGTH_LONG).show(); +// throw new RuntimeException(e); + } catch (IOException e) { + Toast.makeText(MainActivity.this,e.toString(), Toast.LENGTH_LONG).show(); +// throw new RuntimeException(e); + } + } + private String readFromFileObject(Context context, String fileName) + { + String ret = ""; + try + { + FileInputStream is = context.openFileInput(fileName); + ObjectInputStream ois = new ObjectInputStream(is); + if (is != null) + { + ArrayList personList = (ArrayList) ois.readObject(); + is.close(); + ois.close(); + for (Person person : personList) { + ret += person.toString() + "\n"; + } + } + } + catch (FileNotFoundException e) + { + Log.e("login activity", "File not found: " + e.toString()); + } + catch (IOException e) + { + Log.e("login activity", "IO Exception: " + e.toString()); + } catch (ClassNotFoundException e) + { + Log.e("login activity", "Class Not Found Exception: " + e.toString()); + } + return ret; + } +} \ No newline at end of file diff --git a/Assignments/Files/app/src/main/java/asdv/lisset/files/Person.java b/Assignments/Files/app/src/main/java/asdv/lisset/files/Person.java new file mode 100644 index 0000000..c8e557f --- /dev/null +++ b/Assignments/Files/app/src/main/java/asdv/lisset/files/Person.java @@ -0,0 +1,21 @@ +package asdv.lisset.files; + +import java.io.Serializable; + +public class Person implements Serializable { + private String name; + private int age; + + public String getName() { return name; } + public void setName(String name) { this.name = name; } + public int getAge() {return age; } + public void setAge(int age) { this.age = age; } + + @Override + public String toString() { + return "Person{" + + "name='" + name + '\'' + + ", age=" + age + + '}'; + } +} diff --git a/Assignments/Files/app/src/main/java/asdv/lisset/files/Singleton.java b/Assignments/Files/app/src/main/java/asdv/lisset/files/Singleton.java new file mode 100644 index 0000000..88bbe44 --- /dev/null +++ b/Assignments/Files/app/src/main/java/asdv/lisset/files/Singleton.java @@ -0,0 +1,21 @@ +package asdv.lisset.files; + +import android.content.Context; +import java.util.ArrayList; +import java.util.List; +public class Singleton { + + private List list; + private static Singleton singleton; + + private Singleton(Context c) {list = new ArrayList();} + + public static Singleton get(Context c){ + if(singleton == null) + singleton = new Singleton(c); + return singleton; + } + + public List getList() {return list;} +} + diff --git a/Assignments/Files/app/src/main/res/drawable-v24/ic_launcher_foreground.xml b/Assignments/Files/app/src/main/res/drawable-v24/ic_launcher_foreground.xml new file mode 100644 index 0000000..2b068d1 --- /dev/null +++ b/Assignments/Files/app/src/main/res/drawable-v24/ic_launcher_foreground.xml @@ -0,0 +1,30 @@ + + + + + + + + + + + \ No newline at end of file diff --git a/Assignments/Files/app/src/main/res/drawable/ic_launcher_background.xml b/Assignments/Files/app/src/main/res/drawable/ic_launcher_background.xml new file mode 100644 index 0000000..07d5da9 --- /dev/null +++ b/Assignments/Files/app/src/main/res/drawable/ic_launcher_background.xml @@ -0,0 +1,170 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/Assignments/Files/app/src/main/res/layout/activity_main.xml b/Assignments/Files/app/src/main/res/layout/activity_main.xml new file mode 100644 index 0000000..e4944dd --- /dev/null +++ b/Assignments/Files/app/src/main/res/layout/activity_main.xml @@ -0,0 +1,87 @@ + + + + + + + + + + + + + + +