commit a90f5728fe3ce48e0f82076927a7eca05377560b Author: Stepan Date: Sun Jun 8 11:23:54 2025 +0200 init diff --git a/.gitignore b/.gitignore new file mode 100755 index 0000000..aa724b7 --- /dev/null +++ b/.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/.idea/.gitignore b/.idea/.gitignore new file mode 100755 index 0000000..eaf91e2 --- /dev/null +++ b/.idea/.gitignore @@ -0,0 +1,3 @@ +# Default ignored files +/shelf/ +/workspace.xml diff --git a/.idea/.name b/.idea/.name new file mode 100644 index 0000000..30d74d2 --- /dev/null +++ b/.idea/.name @@ -0,0 +1 @@ +test \ No newline at end of file diff --git a/.idea/AndroidProjectSystem.xml b/.idea/AndroidProjectSystem.xml new file mode 100644 index 0000000..4a53bee --- /dev/null +++ b/.idea/AndroidProjectSystem.xml @@ -0,0 +1,6 @@ + + + + + \ No newline at end of file diff --git a/.idea/compiler.xml b/.idea/compiler.xml new file mode 100755 index 0000000..8b3f102 --- /dev/null +++ b/.idea/compiler.xml @@ -0,0 +1,6 @@ + + + + + + \ No newline at end of file diff --git a/.idea/deploymentTargetSelector.xml b/.idea/deploymentTargetSelector.xml new file mode 100755 index 0000000..0d46093 --- /dev/null +++ b/.idea/deploymentTargetSelector.xml @@ -0,0 +1,10 @@ + + + + + + + + + \ No newline at end of file diff --git a/.idea/gradle.xml b/.idea/gradle.xml new file mode 100755 index 0000000..22d9498 --- /dev/null +++ b/.idea/gradle.xml @@ -0,0 +1,19 @@ + + + + + + + \ No newline at end of file diff --git a/.idea/migrations.xml b/.idea/migrations.xml new file mode 100755 index 0000000..48052b2 --- /dev/null +++ b/.idea/migrations.xml @@ -0,0 +1,10 @@ + + + + + + \ No newline at end of file diff --git a/.idea/misc.xml b/.idea/misc.xml new file mode 100755 index 0000000..74dd639 --- /dev/null +++ b/.idea/misc.xml @@ -0,0 +1,10 @@ + + + + + + + + + \ No newline at end of file diff --git a/.idea/runConfigurations.xml b/.idea/runConfigurations.xml new file mode 100644 index 0000000..16660f1 --- /dev/null +++ b/.idea/runConfigurations.xml @@ -0,0 +1,17 @@ + + + + + + \ No newline at end of file diff --git a/README.md b/README.md new file mode 100644 index 0000000..1247efc --- /dev/null +++ b/README.md @@ -0,0 +1,14 @@ +# SharedPreferences + +The application demonstrates the use of SharedPreferences in Android Studio. + +**SharedPreferences** is used to store data within the application in a JSON-like format. It can be used to save user information and other similar data. + +## 📁 Main Files + +- [MainActivity.java](app/src/main/java/com/example/test/MainActivity.java) +- [activity_main.xml](app/src/main/res/layout/activity_main.xml) + +| activity_splash.xml | +| --- | +| ![activity_main](readme_media/activity_main.png) | \ No newline at end of file diff --git a/app/.gitignore b/app/.gitignore new file mode 100755 index 0000000..42afabf --- /dev/null +++ b/app/.gitignore @@ -0,0 +1 @@ +/build \ No newline at end of file diff --git a/app/build.gradle.kts b/app/build.gradle.kts new file mode 100755 index 0000000..e84da00 --- /dev/null +++ b/app/build.gradle.kts @@ -0,0 +1,47 @@ +plugins { + alias(libs.plugins.android.application) +} + +android { + namespace = "com.example.test" + compileSdk = 34 + + defaultConfig { + applicationId = "com.example.test" + minSdk = 28 + 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" + ) + } + } + buildFeatures { + viewBinding = true + } + 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) + implementation("com.android.volley:volley:1.2.1") +} \ No newline at end of file diff --git a/app/proguard-rules.pro b/app/proguard-rules.pro new file mode 100755 index 0000000..481bb43 --- /dev/null +++ b/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/app/src/androidTest/java/com/example/test/ExampleInstrumentedTest.java b/app/src/androidTest/java/com/example/test/ExampleInstrumentedTest.java new file mode 100755 index 0000000..6ea62a5 --- /dev/null +++ b/app/src/androidTest/java/com/example/test/ExampleInstrumentedTest.java @@ -0,0 +1,26 @@ +package com.example.test; + +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("com.example.test", appContext.getPackageName()); + } +} \ No newline at end of file diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml new file mode 100755 index 0000000..f0c7e04 --- /dev/null +++ b/app/src/main/AndroidManifest.xml @@ -0,0 +1,26 @@ + + + + + + + + + + + + + + \ No newline at end of file diff --git a/app/src/main/java/com/example/test/MainActivity.java b/app/src/main/java/com/example/test/MainActivity.java new file mode 100755 index 0000000..c252122 --- /dev/null +++ b/app/src/main/java/com/example/test/MainActivity.java @@ -0,0 +1,59 @@ +package com.example.test; + +import android.content.SharedPreferences; +import android.os.Bundle; +import android.view.View; +import android.widget.Toast; + +import androidx.activity.EdgeToEdge; +import androidx.appcompat.app.AppCompatActivity; +import androidx.core.graphics.Insets; +import androidx.core.view.ViewCompat; +import androidx.core.view.WindowInsetsCompat; + +import com.example.test.databinding.ActivityMainBinding; + +public class MainActivity extends AppCompatActivity { + + private ActivityMainBinding binding; + + // One variable sharedPreferences for all activity + SharedPreferences sharedPreferences; + + @Override + protected void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + EdgeToEdge.enable(this); + + binding = ActivityMainBinding.inflate(getLayoutInflater()); + View view = binding.getRoot(); + setContentView(view); + + // Try to find sharedPreferences with "settings" name + sharedPreferences = getSharedPreferences("settings", MODE_PRIVATE); + + // Some data from SharedPreferences "settings" + boolean remember = sharedPreferences.getBoolean("remember", false); // key, default value + if(remember) { + String firstName = sharedPreferences.getString("first_name", "None"); + String lastName = sharedPreferences.getString("last_name", "None"); + + // Show result + Toast.makeText(this, "Welcome back " + firstName + " " + lastName, Toast.LENGTH_LONG).show(); + } + } + public void SaveButton(View view) { + String firstName = binding.firstNameEdit.getText().toString(); + String lastName = binding.lastNameEdit.getText().toString(); + boolean isRemembered = binding.rememberCheckbox.isChecked(); + + // Saving data to sharedPreferences + SharedPreferences.Editor editor = sharedPreferences.edit(); + editor.putString("first_name", firstName); // key, value + editor.putString("last_name", lastName); + editor.putBoolean("remember", isRemembered); + editor.apply(); + + Toast.makeText(this, "Your preferences is saved", Toast.LENGTH_LONG).show(); + } +} \ No newline at end of file diff --git a/app/src/main/res/drawable/ic_launcher_background.xml b/app/src/main/res/drawable/ic_launcher_background.xml new file mode 100755 index 0000000..07d5da9 --- /dev/null +++ b/app/src/main/res/drawable/ic_launcher_background.xml @@ -0,0 +1,170 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/app/src/main/res/drawable/ic_launcher_foreground.xml b/app/src/main/res/drawable/ic_launcher_foreground.xml new file mode 100755 index 0000000..2b068d1 --- /dev/null +++ b/app/src/main/res/drawable/ic_launcher_foreground.xml @@ -0,0 +1,30 @@ + + + + + + + + + + + \ No newline at end of file diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml new file mode 100755 index 0000000..52867c4 --- /dev/null +++ b/app/src/main/res/layout/activity_main.xml @@ -0,0 +1,50 @@ + + + + + + + + + +