chore : add files for 18th lecture

Author: harshithdwivedi

Lecture17/Firebase/app/src/main/java/com/codingblocks/firebase/MainActivity.java

@@ -42,7 +42,7 @@ protected void onCreate(Bundle savedInstanceState) {
         final EditText taskId = (EditText) findViewById(R.id.taskId);
 
 
-        arrayList.add("Hello");
+//        arrayList.add("Hello");
 
         FirebaseAuth fbAuth = FirebaseAuth.getInstance();
 

Lecture18/Camera/.gitignore

@@ -0,0 +1,9 @@
+*.iml
+.gradle
+/local.properties
+/.idea/workspace.xml
+/.idea/libraries
+.DS_Store
+/build
+/captures
+.externalNativeBuild

Lecture18/Camera/app/.gitignore

@@ -0,0 +1 @@
+/build

Lecture18/Camera/app/build.gradle

@@ -0,0 +1,30 @@
+apply plugin: 'com.android.application'
+
+android {
+    compileSdkVersion 25
+    buildToolsVersion "26.0.0"
+    defaultConfig {
+        applicationId "com.codingblocks.camera"
+        minSdkVersion 15
+        targetSdkVersion 25
+        versionCode 1
+        versionName "1.0"
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+}
+
+dependencies {
+    compile fileTree(dir: 'libs', include: ['*.jar'])
+    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
+        exclude group: 'com.android.support', module: 'support-annotations'
+    })
+    compile 'com.android.support:appcompat-v7:25.3.1'
+    compile 'com.android.support.constraint:constraint-layout:1.0.2'
+    testCompile 'junit:junit:4.12'
+}

Lecture18/Camera/app/proguard-rules.pro

@@ -0,0 +1,25 @@
+# Add project specific ProGuard rules here.
+# By default, the flags in this file are appended to flags specified
+# in /Users/harshitdwivedi/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

Lecture18/Camera/app/src/androidTest/java/com/codingblocks/camera/ExampleInstrumentedTest.java

@@ -0,0 +1,26 @@
+package com.codingblocks.camera;
+
+import android.content.Context;
+import android.support.test.InstrumentationRegistry;
+import android.support.test.runner.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.junit.Assert.*;
+
+/**
+ * Instrumentation 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() throws Exception {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getTargetContext();
+
+        assertEquals("com.codingblocks.camera", appContext.getPackageName());
+    }
+}

Lecture18/Camera/app/src/main/AndroidManifest.xml

@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.codingblocks.camera">
+
+    <uses-permission android:name="android.permission.CAMERA" />
+    <uses-feature android:name="android.hardware.camera" />
+
+    <application
+        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">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>

Lecture18/Camera/app/src/main/java/com/codingblocks/camera/CameraView.java

@@ -0,0 +1,54 @@
+package com.codingblocks.camera;
+
+import android.content.Context;
+import android.hardware.Camera;
+import android.util.AttributeSet;
+import android.view.SurfaceHolder;
+import android.view.SurfaceView;
+
+import java.io.IOException;
+
+/**
+ * Created by harshitdwivedi on 21/07/17.
+ */
+
+public class CameraView extends SurfaceView implements SurfaceHolder.Callback{
+
+    Camera c;
+
+    public CameraView(Context context, Camera camera) {
+        super(context);
+        this.c = camera;
+        SurfaceHolder h = getHolder();
+
+        h.addCallback(this);
+
+    }
+
+    @Override
+    public void surfaceCreated(SurfaceHolder holder) {
+        try {
+            c.setPreviewDisplay(holder);
+            c.startPreview();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+
+    }
+
+    @Override
+    public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
+        c.stopPreview();
+        try {
+            c.setPreviewDisplay(holder);
+            c.startPreview();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @Override
+    public void surfaceDestroyed(SurfaceHolder holder) {
+//        c.release();
+    }
+}

Lecture18/Camera/app/src/main/java/com/codingblocks/camera/MainActivity.java

@@ -0,0 +1,99 @@
+package com.codingblocks.camera;
+
+import android.hardware.Camera;
+import android.support.constraint.ConstraintLayout;
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+import android.util.Log;
+import android.view.Surface;
+import android.view.View;
+import android.widget.Button;
+
+import java.util.List;
+
+public class MainActivity extends AppCompatActivity {
+
+    private static final String TAG = "Camera";
+    Camera c;
+    CameraView cameraView;
+    ConstraintLayout constraintLayout;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+    }
+
+    public void getCameraParams(){
+        List<Camera.Size> pictureSizes = c.getParameters().getSupportedPictureSizes();
+
+        for (Camera.Size s : pictureSizes){
+            Log.d(TAG, "Picture width " + s.width + " height " + s.height);
+        }
+
+        List<Camera.Size> videoSizes = c.getParameters().getSupportedVideoSizes();
+
+        for (Camera.Size s : videoSizes){
+            Log.d(TAG, "Video width " + s.width + " height " + s.height);
+        }
+
+        List<Camera.Size> previewSizes = c.getParameters().getSupportedPreviewSizes();
+
+        for (Camera.Size s : previewSizes){
+            Log.d(TAG, "Preview width " + s.width + " height " + s.height);
+        }
+    }
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+        c = Camera.open();
+        int currentOrientation = getWindowManager().getDefaultDisplay().getRotation();
+
+        switch (currentOrientation){
+
+            case Surface.ROTATION_0 :
+                c.setDisplayOrientation(90);
+                break;
+            case Surface.ROTATION_90:
+                c.setDisplayOrientation(0);
+                break;
+            case Surface.ROTATION_180:
+                c.setDisplayOrientation(270);
+                break;
+            case Surface.ROTATION_270:
+                c.setDisplayOrientation(180);
+        }
+
+
+        constraintLayout = (ConstraintLayout) findViewById(R.id.constraintLayout);
+
+
+        cameraView = new CameraView(this,c);
+
+        constraintLayout.addView(cameraView);
+
+    }
+
+    @Override
+    protected void onStop() {
+        super.onStop();
+        c.release();
+        constraintLayout.removeView(cameraView);
+    }
+
+    public void takePic(View view) {
+        c.takePicture(null, new Camera.PictureCallback() {
+            @Override
+            public void onPictureTaken(byte[] rawData, Camera camera) {
+                //raw format
+            }
+        }, new Camera.PictureCallback() {
+            @Override
+            public void onPictureTaken(byte[] data, Camera camera) {
+                //jpeg format
+//                camera.startPreview();
+            }
+        });
+    }
+}

Lecture18/Camera/app/src/main/res/layout/activity_main.xml

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<android.support.constraint.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"
+    android:id="@+id/constraintLayout"
+    tools:context="com.codingblocks.camera.MainActivity">
+
+    <Button
+        android:id="@+id/button"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="Button"
+        android:onClick="takePic"
+        android:layout_marginRight="8dp"
+        app:layout_constraintRight_toRightOf="parent"
+        android:layout_marginLeft="8dp"
+        app:layout_constraintLeft_toLeftOf="parent"
+        app:layout_constraintBottom_toBottomOf="parent"
+        android:layout_marginBottom="2dp" />
+</android.support.constraint.ConstraintLayout>

Lecture18/Camera/app/src/main/res/mipmap-hdpi/ic_launcher.png

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="colorPrimary">#3F51B5</color>
+    <color name="colorPrimaryDark">#303F9F</color>
+    <color name="colorAccent">#FF4081</color>
+</resources>

Lecture18/Camera/app/src/main/res/mipmap-hdpi/ic_launcher_round.png

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

Lecture18/Camera/app/src/main/res/mipmap-mdpi/ic_launcher.png

@@ -0,0 +1,11 @@
+<resources>
+
+    <!-- Base application theme. -->
+    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
+        <!-- Customize your theme here. -->
+        <item name="colorPrimary">@color/colorPrimary</item>
+        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
+        <item name="colorAccent">@color/colorAccent</item>
+    </style>
+
+</resources>

Lecture18/Camera/app/src/main/res/mipmap-mdpi/ic_launcher_round.png

@@ -0,0 +1,17 @@
+package com.codingblocks.camera;
+
+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() throws Exception {
+        assertEquals(4, 2 + 2);
+    }
+}

Lecture18/Camera/app/src/main/res/mipmap-xhdpi/ic_launcher.png

@@ -0,0 +1,23 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+
+buildscript {
+    repositories {
+        jcenter()
+    }
+    dependencies {
+        classpath 'com.android.tools.build:gradle:2.3.3'
+
+        // NOTE: Do not place your application dependencies here; they belong
+        // in the individual module build.gradle files
+    }
+}
+
+allprojects {
+    repositories {
+        jcenter()
+    }
+}
+
+task clean(type: Delete) {
+    delete rootProject.buildDir
+}

Lecture18/Camera/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png

@@ -0,0 +1,17 @@
+# Project-wide Gradle settings.
+
+# IDE (e.g. Android Studio) users:
+# Gradle settings configured through the IDE *will override*
+# any settings specified in this file.
+
+# For more details on how to configure your build environment visit
+# http://www.gradle.org/docs/current/userguide/build_environment.html
+
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+org.gradle.jvmargs=-Xmx1536m
+
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. More details, visit
+# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
+# org.gradle.parallel=true