Java notepad

Author: Aaron Sarazan

.gitignore

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+*.iml
+.gradle
+/local.properties
+/.idea/workspace.xml
+/.idea/libraries
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+.idea

app/.gitignore

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+/build

app/build.gradle

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+apply plugin: 'com.android.application'
+
+android {
+    compileSdkVersion 26
+    buildToolsVersion '26.0.2'
+    defaultConfig {
+        applicationId "com.udacity.notepad"
+        minSdkVersion 16
+        targetSdkVersion 26
+        versionCode 1
+        versionName "1.0"
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+        vectorDrawables.useSupportLibrary = true
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+}
+
+dependencies {
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
+    implementation "com.android.support.constraint:constraint-layout:1.0.2"
+    implementation "com.android.support:design:$support_version"
+    implementation "com.android.support:appcompat-v7:$support_version"
+    implementation "com.android.support:recyclerview-v7:$support_version"
+    implementation "com.android.support:cardview-v7:$support_version"
+}

app/proguard-rules.pro

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+# Add project specific ProGuard rules here.
+# By default, the flags in this file are appended to flags specified
+# in /Users/mek556/Library/Android/sdk/tools/proguard/proguard-android.txt
+# You can edit the include path and order by changing the proguardFiles
+# directive in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# Add any project specific keep options here:
+
+# 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

app/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.udacity.notepad">
+
+    <application
+        android:name=".NotesApplication"
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme">
+        <activity
+            android:name=".MainActivity"
+            android:label="@string/app_name"
+            android:theme="@style/AppTheme.NoActionBar">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+        <activity android:name=".crud.CreateActivity"
+            android:windowSoftInputMode="stateVisible|adjustPan"
+            />
+    </application>
+
+</manifest>

app/src/main/java/com/udacity/notepad/MainActivity.java

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+package com.udacity.notepad;
+
+import android.os.Bundle;
+import android.support.design.widget.FloatingActionButton;
+import android.support.v7.app.AppCompatActivity;
+import android.support.v7.widget.LinearLayoutManager;
+import android.support.v7.widget.RecyclerView;
+import android.support.v7.widget.Toolbar;
+import android.view.Menu;
+import android.view.MenuItem;
+import android.view.View;
+
+import com.udacity.notepad.crud.CreateActivity;
+import com.udacity.notepad.recycler.NotesAdapter;
+import com.udacity.notepad.util.SpaceItemDecoration;
+
+public class MainActivity extends AppCompatActivity {
+
+    private RecyclerView recycler;
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+
+        Toolbar toolbar = findViewById(R.id.toolbar);
+        setSupportActionBar(toolbar);
+
+        FloatingActionButton fab = findViewById(R.id.fab);
+        fab.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                startActivity(CreateActivity.get(MainActivity.this));
+            }
+        });
+
+        recycler = findViewById(R.id.recycler);
+        recycler.setLayoutManager(new LinearLayoutManager(this));
+        recycler.addItemDecoration(new SpaceItemDecoration(this, R.dimen.margin_small));
+        recycler.setAdapter(new NotesAdapter(this));
+    }
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+        refresh();
+    }
+
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+        recycler.setAdapter(null);
+    }
+
+    @Override
+    public boolean onCreateOptionsMenu(Menu menu) {
+        // Inflate the menu; this adds items to the action bar if it is present.
+        getMenuInflater().inflate(R.menu.menu_main, menu);
+        return true;
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        // Handle action bar item clicks here. The action bar will
+        // automatically handle clicks on the Home/Up button, so long
+        // as you specify a parent activity in AndroidManifest.xml.
+        switch (item.getItemId()) {
+            case R.id.action_settings:
+                return true;
+            default:
+                return super.onOptionsItemSelected(item);
+        }
+    }
+
+
+    private void refresh() {
+        ((NotesAdapter) recycler.getAdapter()).refresh();
+    }
+}

app/src/main/java/com/udacity/notepad/NotesApplication.java

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+package com.udacity.notepad;
+
+import android.app.Application;
+
+import com.udacity.notepad.data.DataStore;
+
+public class NotesApplication extends Application {
+
+    @Override
+    public void onCreate() {
+        super.onCreate();
+        DataStore.init(this);
+    }
+}

app/src/main/java/com/udacity/notepad/crud/CreateActivity.java

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+package com.udacity.notepad.crud;
+
+import android.content.Context;
+import android.content.Intent;
+import android.os.Bundle;
+import android.support.annotation.Nullable;
+import android.support.v7.app.AppCompatActivity;
+import android.view.Menu;
+import android.view.MenuItem;
+import android.widget.TextView;
+
+import com.udacity.notepad.R;
+import com.udacity.notepad.data.DataStore;
+import com.udacity.notepad.data.Note;
+
+import java.util.Date;
+
+public class CreateActivity extends AppCompatActivity {
+
+    public static Intent get(Context context) {
+        return new Intent(context, CreateActivity.class);
+    }
+
+    private TextView editText;
+
+    @Override
+    protected void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_create);
+        editText = findViewById(R.id.edit_text);
+    }
+
+    @Override
+    public boolean onCreateOptionsMenu(Menu menu) {
+        getMenuInflater().inflate(R.menu.menu_accept, menu);
+        return super.onCreateOptionsMenu(menu);
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        switch (item.getItemId()) {
+            case R.id.action_accept:
+                save();
+                finish();
+                break;
+            default:
+                return super.onOptionsItemSelected(item);
+        }
+        return super.onOptionsItemSelected(item);
+    }
+
+    private void save() {
+        DataStore.execute(new Runnable() {
+            @Override
+            public void run() {
+                Note note = updateNote();
+                DataStore.getNotes().insert(note);
+            }
+        });
+    }
+
+    private Note updateNote() {
+        Note note = new Note();
+        note.setText(editText.getText().toString());
+        note.setUpdatedAt(new Date());
+        return note;
+    }
+}

app/src/main/java/com/udacity/notepad/data/DataStore.java

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+package com.udacity.notepad.data;
+
+import android.content.Context;
+
+import java.util.concurrent.Executor;
+import java.util.concurrent.Executors;
+
+public final class DataStore {
+
+    private DataStore() {}
+
+    public static final Executor EXEC = Executors.newSingleThreadExecutor();
+
+    private static NoteDatabase notes;
+
+    public static void init(Context context) {
+        notes = new NoteDatabase(context);
+    }
+
+    public static NoteDatabase getNotes() {
+        return notes;
+    }
+
+    public static void execute(Runnable runnable) {
+        EXEC.execute(runnable);
+    }
+}

app/src/main/java/com/udacity/notepad/data/Note.java

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+package com.udacity.notepad.data;
+
+import android.support.annotation.Nullable;
+
+import java.util.Date;
+
+public class Note {
+    private int id = -1;
+    @Nullable private String text;
+    private boolean isPinned = false;
+    private Date createdAt = new Date();
+    private Date updatedAt;
+
+    public int getId() {
+        return id;
+    }
+
+    public void setId(int id) {
+        this.id = id;
+    }
+
+    @Nullable
+    public String getText() {
+        return text;
+    }
+
+    public void setText(@Nullable String text) {
+        this.text = text;
+    }
+
+    public boolean isPinned() {
+        return isPinned;
+    }
+
+    public void setPinned(boolean pinned) {
+        isPinned = pinned;
+    }
+
+    public Date getCreatedAt() {
+        return createdAt;
+    }
+
+    public void setCreatedAt(Date createdAt) {
+        this.createdAt = createdAt;
+    }
+
+    public Date getUpdatedAt() {
+        return updatedAt;
+    }
+
+    public void setUpdatedAt(Date updatedAt) {
+        this.updatedAt = updatedAt;
+    }
+}