End task

P02_HealthCalculator/Somyaguglani/Health Calculator complete/app/src/main/AndroidManifest.xml

@@ -9,16 +9,18 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
-        <activity android:name=".BMIActivity"></activity>
-        <activity android:name=".ChoosingActivity" >
-        <intent-filter>
-            <action android:name="android.intent.action.MAIN" />
+        <activity android:name=".NoteStartActivity"></activity>
+        <activity android:name=".NoteEditorActivity" />
+        <activity android:name=".BMIActivity" />
+        <activity android:name=".ChoosingActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
 
-            <category android:name="android.intent.category.LAUNCHER" />
-        </intent-filter>
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
         </activity>
-        <activity android:name=".OtherActivity"/>
-        <activity android:name=".MainActivity"></activity>
+        <activity android:name=".OtherActivity" />
+        <activity android:name=".MainActivity" />
     </application>
 
 </manifest>

P02_HealthCalculator/Somyaguglani/Health Calculator complete/app/src/main/java/com/example/bmrcalculator/ChoosingActivity.java

@@ -11,7 +11,7 @@
 
 public class ChoosingActivity extends AppCompatActivity {
 
-    ImageButton bmi,bmr;
+    ImageButton bmi,bmr,takenotes;
 
 
     @Override
@@ -42,6 +42,7 @@ protected void onCreate(Bundle savedInstanceState) {
 
         bmi= findViewById(R.id.imbtn_bmi);
         bmr = findViewById(R.id.imbtn_bmr);
+        takenotes = findViewById(R.id.imbtn_bmi_takenotes);
 
         bmi.setOnClickListener(new View.OnClickListener() {
             @Override
@@ -57,6 +58,14 @@ public void onClick(View view) {
                 startActivity(i);
             }
         });
+        takenotes.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                Intent i = new Intent(ChoosingActivity.this,NoteStartActivity.class);
+                startActivity(i);
+
+            }
+        });
 
 
 

P02_HealthCalculator/Somyaguglani/Health Calculator complete/app/src/main/java/com/example/bmrcalculator/NoteEditorActivity.java

@@ -0,0 +1,55 @@
+package com.example.bmrcalculator;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.os.Bundle;
+import android.text.Editable;
+import android.text.TextWatcher;
+import android.widget.EditText;
+
+import java.util.HashSet;
+
+public class NoteEditorActivity extends AppCompatActivity {
+
+    int noteId;
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_note_editor);
+
+        EditText editText= findViewById(R.id.et_inputnote);
+        noteId = getIntent().getIntExtra("noteId",-1);//imp since indexing starts from 0 this checks for something invalid
+        if(noteId!=-1){
+            editText.setText(NoteStartActivity.notes.get(noteId));
+        }else{
+            NoteStartActivity.notes.add("");
+            noteId= NoteStartActivity.notes.size()-1;
+            NoteStartActivity.arrayAdapter.notifyDataSetChanged();
+
+        }
+        editText.addTextChangedListener(new TextWatcher() {
+            @Override
+            public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {
+
+            }
+
+            @Override
+            public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {
+               NoteStartActivity.notes.set(noteId,String.valueOf(charSequence));
+                NoteStartActivity.arrayAdapter.notifyDataSetChanged();
+
+                SharedPreferences sharedPreferences= getApplicationContext().getSharedPreferences("com.example.bmrcalculator", Context.MODE_PRIVATE);
+                HashSet<String> set= new HashSet<>(NoteStartActivity.notes);
+                sharedPreferences.edit().putStringSet("notes",set).apply();
+
+            }
+
+            @Override
+            public void afterTextChanged(Editable editable) {
+
+            }
+        });
+    }
+}

P02_HealthCalculator/Somyaguglani/Health Calculator complete/app/src/main/java/com/example/bmrcalculator/NoteStartActivity.java

@@ -0,0 +1,111 @@
+package com.example.bmrcalculator;
+
+import androidx.annotation.NonNull;
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.app.AlertDialog;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.os.Bundle;
+import android.view.Menu;
+import android.view.MenuInflater;
+import android.view.MenuItem;
+import android.view.View;
+import android.widget.AdapterView;
+import android.widget.ArrayAdapter;
+import android.widget.ListView;
+
+import java.util.ArrayList;
+import java.util.HashSet;
+
+public class NoteStartActivity extends AppCompatActivity {
+    ListView listView;
+
+    static ArrayAdapter<String> arrayAdapter;
+    static ArrayList<String > notes = new ArrayList<>();
+
+    @Override
+    public boolean onCreateOptionsMenu(Menu menu) {
+        MenuInflater menuInflater = getMenuInflater();
+        menuInflater.inflate(R.menu.add_new_menu,menu);
+        return super.onCreateOptionsMenu(menu);
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(@NonNull MenuItem item) {
+        super.onOptionsItemSelected(item);
+        if(item.getItemId()==R.id.add_note){
+            Intent intent = new Intent(getApplicationContext(),NoteEditorActivity.class);
+            startActivity(intent);
+            return true;
+        }
+        return false;
+    }
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+        listView= findViewById(R.id.lv_listview);//use ..toi save space we don't want duplicates //new concept learn
+        SharedPreferences sharedPreferences= getApplicationContext().getSharedPreferences("com.example.bmrcalculator", Context.MODE_PRIVATE);
+        HashSet<String> set = (HashSet<String>) sharedPreferences.getStringSet("notes",null);
+
+        if(set==null)
+            notes.add("Example note");
+        else
+            notes = new ArrayList<>(set);
+
+
+        arrayAdapter= new ArrayAdapter<>(this,
+                android.R.layout.simple_list_item_1,
+                notes);
+
+        listView.setAdapter(arrayAdapter);
+        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
+            @Override
+            public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
+                Intent intent= new Intent(getApplicationContext(),NoteEditorActivity.class);
+                intent.putExtra("noteId",i);
+                startActivity(intent);
+            }
+        });
+
+
+        listView.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {
+            @Override
+            public boolean onItemLongClick(AdapterView<?> adapterView, View view, int i, long l) {
+
+                final int item_to_delete = i;
+                new AlertDialog.Builder( NoteStartActivity.this)
+                        .setCancelable(false)
+                        .setTitle("Are yiou sure?")
+                        .setIcon(android.R.drawable.ic_dialog_alert)
+                        .setMessage("Do you want to delete this note?")
+                        .setPositiveButton("Ok", new DialogInterface.OnClickListener() {
+                            @Override
+                            public void onClick(DialogInterface dialogInterface, int i) {
+                                notes.remove(item_to_delete);
+                                arrayAdapter.notifyDataSetChanged();
+
+                                SharedPreferences sharedPreferences= getApplicationContext().getSharedPreferences("com.example.bmrcalculator", Context.MODE_PRIVATE);
+                                HashSet<String> set= new HashSet<>(NoteStartActivity.notes);
+                                sharedPreferences.edit().putStringSet("notes",set).apply();
+                            }
+                        })
+                        .setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
+                            @Override
+                            public void onClick(DialogInterface dialogInterface, int i) {
+
+                            }
+                        })
+                        .show();
+
+
+                return true;
+            }
+        });
+
+    }
+}

P02_HealthCalculator/Somyaguglani/Health Calculator complete/app/src/main/res/layout/activity_choosing.xml

@@ -24,9 +24,17 @@
             android:layout_width="137dp"
             android:layout_height="wrap_content"
             android:layout_gravity="center_horizontal"
-            android:layout_marginTop="130dp"
+            android:layout_marginTop="30dp"
             android:src="@drawable/bmi_pic" />
 
+        <ImageButton
+            android:id="@+id/imbtn_bmi_takenotes"
+            android:layout_width="137dp"
+            android:layout_height="135dp"
+            android:layout_gravity="center_horizontal"
+            android:layout_marginTop="30dp"
+            android:src="@drawable/note_taking" />
+
 
     </LinearLayout>
 

P02_HealthCalculator/Somyaguglani/Health Calculator complete/app/src/main/res/layout/activity_note_editor.xml

@@ -0,0 +1,16 @@
+<?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"
+    android:orientation="vertical"
+    tools:context=".NoteEditorActivity">
+    <EditText
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:inputType="textMultiLine"
+        android:gravity="top"
+        android:id="@+id/et_inputnote"/>
+
+</LinearLayout>

P02_HealthCalculator/Somyaguglani/Health Calculator complete/app/src/main/res/layout/activity_note_start.xml

@@ -0,0 +1,19 @@
+<?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"
+    android:orientation="vertical"
+
+    tools:context=".MainActivity">
+
+    <ListView
+
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:id="@+id/lv_listview">
+
+    </ListView>
+
+</LinearLayout>

P02_HealthCalculator/Somyaguglani/Health Calculator complete/app/src/main/res/menu/add_new_menu.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android">
+    <item
+        android:id="@+id/add_note"
+        android:title="@string/add">
+
+    </item>
+
+</menu>

P02_HealthCalculator/Somyaguglani/Health Calculator complete/app/src/main/res/values/strings.xml

@@ -16,4 +16,6 @@
     <string name="severe_underweighgt">Severe Underweight</string>
     <string name="moderate_weight">Moderate weight</string>
     <string name="body_fat_percentage_is">BODY FAT PERCENTAGE IS</string>
+    <string name="add_note">add_note</string>
+    <string name="add">Add note</string>
 </resources>