Applications

ActivityLifeCylcle/app/build.gradle

@@ -0,0 +1,39 @@
+plugins {
+    id 'com.android.application'
+}
+
+android {
+    namespace 'com.example.activitylifecylcle'
+    compileSdk 33
+
+    defaultConfig {
+        applicationId "com.example.activitylifecylcle"
+        minSdk 24
+        targetSdk 33
+        versionCode 1
+        versionName "1.0"
+
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+}
+
+dependencies {
+
+    implementation 'androidx.appcompat:appcompat:1.6.1'
+    implementation 'com.google.android.material:material:1.9.0'
+    implementation 'androidx.constraintlayout:constraintlayout:2.1.4'
+    testImplementation 'junit:junit:4.13.2'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.5'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.1'
+}

ActivityLifeCylcle/app/src/androidTest/java/com/example/activitylifecylcle/ExampleInstrumentedTest.java

@@ -0,0 +1,26 @@
+package com.example.activitylifecylcle;
+
+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 <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+    @Test
+    public void useAppContext() {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext();
+        assertEquals("com.example.activitylifecylcle", appContext.getPackageName());
+    }
+}

ActivityLifeCylcle/app/src/main/AndroidManifest.xml

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools">
+
+    <application
+        android:allowBackup="true"
+        android:dataExtractionRules="@xml/data_extraction_rules"
+        android:fullBackupContent="@xml/backup_rules"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.ActivityLifeCylcle"
+        tools:targetApi="31">
+        <activity
+            android:name=".MainActivity"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>

ActivityLifeCylcle/app/src/main/java/com/example/activitylifecylcle/MainActivity.java

@@ -0,0 +1,21 @@
+package com.example.activitylifecylcle;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.os.Bundle;
+import android.util.Log;
+
+public class MainActivity extends AppCompatActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+        Log.i("ActivityLifeCycle","onCreate() method");
+    }
+
+    @Override
+    protected void onStart() {
+        super.onStart();
+    }
+}

ActivityLifeCylcle/app/src/main/res/layout/activity_main.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout 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">
+
+    <TextView
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="Hello World!"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>

ActivityLifeCylcle/app/src/main/res/values-night/themes.xml

@@ -0,0 +1,16 @@
+<resources xmlns:tools="http://schemas.android.com/tools">
+    <!-- Base application theme. -->
+    <style name="Theme.ActivityLifeCylcle" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
+        <!-- Primary brand color. -->
+        <item name="colorPrimary">@color/purple_200</item>
+        <item name="colorPrimaryVariant">@color/purple_700</item>
+        <item name="colorOnPrimary">@color/black</item>
+        <!-- Secondary brand color. -->
+        <item name="colorSecondary">@color/teal_200</item>
+        <item name="colorSecondaryVariant">@color/teal_200</item>
+        <item name="colorOnSecondary">@color/black</item>
+        <!-- Status bar color. -->
+        <item name="android:statusBarColor">?attr/colorPrimaryVariant</item>
+        <!-- Customize your theme here. -->
+    </style>
+</resources>

ActivityLifeCylcle/app/src/main/res/values/strings.xml

@@ -0,0 +1,3 @@
+<resources>
+    <string name="app_name">ActivityLifeCylcle</string>
+</resources>

ActivityLifeCylcle/app/src/main/res/values/themes.xml

@@ -0,0 +1,16 @@
+<resources xmlns:tools="http://schemas.android.com/tools">
+    <!-- Base application theme. -->
+    <style name="Theme.ActivityLifeCylcle" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
+        <!-- Primary brand color. -->
+        <item name="colorPrimary">@color/purple_500</item>
+        <item name="colorPrimaryVariant">@color/purple_700</item>
+        <item name="colorOnPrimary">@color/white</item>
+        <!-- Secondary brand color. -->
+        <item name="colorSecondary">@color/teal_200</item>
+        <item name="colorSecondaryVariant">@color/teal_700</item>
+        <item name="colorOnSecondary">@color/black</item>
+        <!-- Status bar color. -->
+        <item name="android:statusBarColor">?attr/colorPrimaryVariant</item>
+        <!-- Customize your theme here. -->
+    </style>
+</resources>

ActivityLifeCylcle/app/src/test/java/com/example/activitylifecylcle/ExampleUnitTest.java

@@ -0,0 +1,17 @@
+package com.example.activitylifecylcle;
+
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+public class ExampleUnitTest {
+    @Test
+    public void addition_isCorrect() {
+        assertEquals(4, 2 + 2);
+    }
+}

ActivityLifeCylcle/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,6 @@
+#Thu Jun 29 16:22:54 IST 2023
+distributionBase=GRADLE_USER_HOME
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.5-bin.zip
+distributionPath=wrapper/dists
+zipStorePath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME

ActivityLifeCylcle/settings.gradle

@@ -0,0 +1,16 @@
+pluginManagement {
+    repositories {
+        google()
+        mavenCentral()
+        gradlePluginPortal()
+    }
+}
+dependencyResolutionManagement {
+    repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+rootProject.name = "ActivityLifeCylcle"
+include ':app'

DatenTimePicker/app/src/main/java/com/example/datentimepicker/MainActivity.java

@@ -3,11 +3,13 @@
 import androidx.appcompat.app.AppCompatActivity;
 
 import android.app.DatePickerDialog;
+import android.app.TimePickerDialog;
 import android.os.Bundle;
 import android.view.View;
 import android.widget.Button;
 import android.widget.DatePicker;
 import android.widget.EditText;
+import android.widget.TimePicker;
 
 import java.util.Calendar;
 
@@ -28,18 +30,39 @@ protected void onCreate(Bundle savedInstanceState) {
             @Override
             public void onClick(View view) {
                 Calendar c=Calendar.getInstance();
-                int y,m,d;
+                int y,m,day;
                 y=c.get(Calendar.YEAR);
                 m=c.get(Calendar.MONTH);
-                d=c.get(Calendar.DAY_OF_MONTH);
+                day=c.get(Calendar.DAY_OF_MONTH);
 
                 DatePickerDialog dp=new DatePickerDialog(MainActivity.this, new DatePickerDialog.OnDateSetListener() {
                     @Override
                     public void onDateSet(DatePicker datePicker, int i, int i1, int i2) {
                         dt.setText(i2+"/"+(i1+1)+"/"+i);
-                    },y,m,d);
+                    }
+                }, y, m, day);
                 dp.show();
-                });
+            }
+        });
+
+        tb.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                Calendar c=Calendar.getInstance();
+                int hr,min;
+                hr=c.get(Calendar.HOUR);
+                min=c.get(Calendar.MINUTE);
+
+                TimePickerDialog tp=new TimePickerDialog(MainActivity.this, new TimePickerDialog.OnTimeSetListener() {
+                    @Override
+                    public void onTimeSet(TimePicker timePicker, int i, int i1) {
+                        String s=i+"";
+                        if (s.length()==1)
+                            s="0"+s;
+                        tt.setText(s+":"+i1);
+                    }
+                }, hr, min, true);
+                tp.show();
             }
         });
     }

DatenTimePicker/app/src/main/res/layout/activity_main.xml

@@ -32,29 +32,29 @@
 
     <EditText
         android:id="@+id/date_pt"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
+        android:layout_width="217dp"
+        android:layout_height="67dp"
         android:ems="10"
         android:inputType="textPersonName"
         android:text="Enter date"
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintHorizontal_bias="0.686"
+        app:layout_constraintHorizontal_bias="0.85"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toTopOf="parent"
-        app:layout_constraintVertical_bias="0.447" />
+        app:layout_constraintVertical_bias="0.314" />
 
     <EditText
         android:id="@+id/time_pt"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
+        android:layout_width="212dp"
+        android:layout_height="64dp"
         android:ems="10"
         android:inputType="textPersonName"
         android:text="Enter time"
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintHorizontal_bias="0.681"
+        app:layout_constraintHorizontal_bias="0.83"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toTopOf="parent"
-        app:layout_constraintVertical_bias="0.309" />
+        app:layout_constraintVertical_bias="0.447" />
 </androidx.constraintlayout.widget.ConstraintLayout>