Add lesson 09b

udacity · Apr 26, 2018 · 05cc7c2 · 05cc7c2
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diff --git a/Lesson09b-ToDo-List-AAC/T09b.01-Exercise-CreateEntity/.gitignore b/Lesson09b-ToDo-List-AAC/T09b.01-Exercise-CreateEntity/.gitignore
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+*.iml
+.gradle
+/local.properties
+/.idea
+.DS_Store
+/build
+/captures
+.externalNativeBuild
diff --git a/Lesson09b-ToDo-List-AAC/T09b.01-Exercise-CreateEntity/app/.gitignore b/Lesson09b-ToDo-List-AAC/T09b.01-Exercise-CreateEntity/app/.gitignore
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+/build
diff --git a/Lesson09b-ToDo-List-AAC/T09b.01-Exercise-CreateEntity/app/build.gradle b/Lesson09b-ToDo-List-AAC/T09b.01-Exercise-CreateEntity/app/build.gradle
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+apply plugin: 'com.android.application'
+
+android {
+    compileSdkVersion 27
+    buildToolsVersion '27.0.1'
+    defaultConfig {
+        applicationId "com.example.android.todolist"
+        minSdkVersion 15
+        targetSdkVersion 27
+        versionCode 1
+        versionName "1.0"
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+        }
+    }
+}
+
+dependencies {
+    compile fileTree(dir: 'libs', include: ['*.jar'])
+    compile 'com.android.support:appcompat-v7:27.0.2'
+
+    //add Recycler view dependencies; must match SDK version
+    compile 'com.android.support:recyclerview-v7:27.0.2'
+
+    //FAB dependencies
+    compile 'com.android.support:design:27.0.2'
+
+    // TODO (1) Add room dependencies
+
+    //Testing
+    // Instrumentation dependencies use androidTestCompile
+    // (as opposed to testCompile for local unit tests run in the JVM)
+    androidTestCompile 'junit:junit:4.12'
+    androidTestCompile 'com.android.support:support-annotations:27.0.2'
+    androidTestCompile 'com.android.support.test:runner:1.0.1'
+    androidTestCompile 'com.android.support.test:rules:1.0.1'
+}
diff --git a/Lesson09b-ToDo-List-AAC/T09b.01-Exercise-CreateEntity/app/src/main/AndroidManifest.xml b/Lesson09b-ToDo-List-AAC/T09b.01-Exercise-CreateEntity/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"
+    xmlns:tools="http://schemas.android.com/tools"
+    package="com.example.android.todolist">
+
+    <application
+        android:allowBackup="false"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme"
+        tools:ignore="GoogleAppIndexingWarning">
+
+        <!-- The manifest entry for the MainActivity -->
+        <activity android:name="com.example.android.todolist.MainActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+
+        <!-- AddTaskActivity -->
+        <activity
+            android:name="com.example.android.todolist.AddTaskActivity"
+            android:label="@string/add_task_activity_name" />
+
+    </application>
+
+</manifest>
diff --git a/...Exercise-CreateEntity/app/src/main/java/com/example/android/todolist/AddTaskActivity.java b/...Exercise-CreateEntity/app/src/main/java/com/example/android/todolist/AddTaskActivity.java
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+/*
+* Copyright (C) 2016 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*      http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+package com.example.android.todolist;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.support.v7.app.AppCompatActivity;
+import android.view.View;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.RadioGroup;
+
+import com.example.android.todolist.database.TaskEntry;
+
+
+public class AddTaskActivity extends AppCompatActivity {
+
+    // Extra for the task ID to be received in the intent
+    public static final String EXTRA_TASK_ID = "extraTaskId";
+    // Extra for the task ID to be received after rotation
+    public static final String INSTANCE_TASK_ID = "instanceTaskId";
+    // Constants for priority
+    public static final int PRIORITY_HIGH = 1;
+    public static final int PRIORITY_MEDIUM = 2;
+    public static final int PRIORITY_LOW = 3;
+    // Constant for default task id to be used when not in update mode
+    private static final int DEFAULT_TASK_ID = -1;
+    // Constant for logging
+    private static final String TAG = AddTaskActivity.class.getSimpleName();
+    // Fields for views
+    EditText mEditText;
+    RadioGroup mRadioGroup;
+    Button mButton;
+
+    private int mTaskId = DEFAULT_TASK_ID;
+
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_add_task);
+
+        initViews();
+
+        if (savedInstanceState != null && savedInstanceState.containsKey(INSTANCE_TASK_ID)) {
+            mTaskId = savedInstanceState.getInt(INSTANCE_TASK_ID, DEFAULT_TASK_ID);
+        }
+
+        Intent intent = getIntent();
+        if (intent != null && intent.hasExtra(EXTRA_TASK_ID)) {
+            mButton.setText(R.string.update_button);
+            if (mTaskId == DEFAULT_TASK_ID) {
+                // populate the UI
+            }
+        }
+    }
+
+    @Override
+    protected void onSaveInstanceState(Bundle outState) {
+        outState.putInt(INSTANCE_TASK_ID, mTaskId);
+        super.onSaveInstanceState(outState);
+    }
+
+    /**
+     * initViews is called from onCreate to init the member variable views
+     */
+    private void initViews() {
+        mEditText = findViewById(R.id.editTextTaskDescription);
+        mRadioGroup = findViewById(R.id.radioGroup);
+
+        mButton = findViewById(R.id.saveButton);
+        mButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                onSaveButtonClicked();
+            }
+        });
+    }
+
+    /**
+     * populateUI would be called to populate the UI when in update mode
+     *
+     * @param task the taskEntry to populate the UI
+     */
+    private void populateUI(TaskEntry task) {
+
+    }
+
+    /**
+     * onSaveButtonClicked is called when the "save" button is clicked.
+     * It retrieves user input and inserts that new task data into the underlying database.
+     */
+    public void onSaveButtonClicked() {
+        // Not yet implemented
+    }
+
+    /**
+     * getPriority is called whenever the selected priority needs to be retrieved
+     */
+    public int getPriorityFromViews() {
+        int priority = 1;
+        int checkedId = ((RadioGroup) findViewById(R.id.radioGroup)).getCheckedRadioButtonId();
+        switch (checkedId) {
+            case R.id.radButton1:
+                priority = PRIORITY_HIGH;
+                break;
+            case R.id.radButton2:
+                priority = PRIORITY_MEDIUM;
+                break;
+            case R.id.radButton3:
+                priority = PRIORITY_LOW;
+        }
+        return priority;
+    }
+
+    /**
+     * setPriority is called when we receive a task from MainActivity
+     *
+     * @param priority the priority value
+     */
+    public void setPriorityInViews(int priority) {
+        switch (priority) {
+            case PRIORITY_HIGH:
+                ((RadioGroup) findViewById(R.id.radioGroup)).check(R.id.radButton1);
+                break;
+            case PRIORITY_MEDIUM:
+                ((RadioGroup) findViewById(R.id.radioGroup)).check(R.id.radButton2);
+                break;
+            case PRIORITY_LOW:
+                ((RadioGroup) findViewById(R.id.radioGroup)).check(R.id.radButton3);
+        }
+    }
+}
diff --git a/...01-Exercise-CreateEntity/app/src/main/java/com/example/android/todolist/MainActivity.java b/...01-Exercise-CreateEntity/app/src/main/java/com/example/android/todolist/MainActivity.java
@@ -0,0 +1,98 @@
+/*
+* Copyright (C) 2016 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*      http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+package com.example.android.todolist;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.support.design.widget.FloatingActionButton;
+import android.support.v7.app.AppCompatActivity;
+import android.support.v7.widget.DividerItemDecoration;
+import android.support.v7.widget.LinearLayoutManager;
+import android.support.v7.widget.RecyclerView;
+import android.support.v7.widget.helper.ItemTouchHelper;
+import android.view.View;
+
+import static android.support.v7.widget.DividerItemDecoration.VERTICAL;
+
+
+public class MainActivity extends AppCompatActivity implements TaskAdapter.ItemClickListener {
+
+    // Constant for logging
+    private static final String TAG = MainActivity.class.getSimpleName();
+    // Member variables for the adapter and RecyclerView
+    private RecyclerView mRecyclerView;
+    private TaskAdapter mAdapter;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+
+        // Set the RecyclerView to its corresponding view
+        mRecyclerView = findViewById(R.id.recyclerViewTasks);
+
+        // Set the layout for the RecyclerView to be a linear layout, which measures and
+        // positions items within a RecyclerView into a linear list
+        mRecyclerView.setLayoutManager(new LinearLayoutManager(this));
+
+        // Initialize the adapter and attach it to the RecyclerView
+        mAdapter = new TaskAdapter(this, this);
+        mRecyclerView.setAdapter(mAdapter);
+
+        DividerItemDecoration decoration = new DividerItemDecoration(getApplicationContext(), VERTICAL);
+        mRecyclerView.addItemDecoration(decoration);
+
+        /*
+         Add a touch helper to the RecyclerView to recognize when a user swipes to delete an item.
+         An ItemTouchHelper enables touch behavior (like swipe and move) on each ViewHolder,
+         and uses callbacks to signal when a user is performing these actions.
+         */
+        new ItemTouchHelper(new ItemTouchHelper.SimpleCallback(0, ItemTouchHelper.LEFT | ItemTouchHelper.RIGHT) {
+            @Override
+            public boolean onMove(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder, RecyclerView.ViewHolder target) {
+                return false;
+            }
+
+            // Called when a user swipes left or right on a ViewHolder
+            @Override
+            public void onSwiped(RecyclerView.ViewHolder viewHolder, int swipeDir) {
+                // Here is where you'll implement swipe to delete
+            }
+        }).attachToRecyclerView(mRecyclerView);
+
+        /*
+         Set the Floating Action Button (FAB) to its corresponding View.
+         Attach an OnClickListener to it, so that when it's clicked, a new intent will be created
+         to launch the AddTaskActivity.
+         */
+        FloatingActionButton fabButton = findViewById(R.id.fab);
+
+        fabButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                // Create a new intent to start an AddTaskActivity
+                Intent addTaskIntent = new Intent(MainActivity.this, AddTaskActivity.class);
+                startActivity(addTaskIntent);
+            }
+        });
+    }
+
+    @Override
+    public void onItemClickListener(int itemId) {
+        // Launch AddTaskActivity adding the itemId as an extra in the intent
+    }
+}