diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..5edb4ee
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,10 @@
+*.iml
+.gradle
+/local.properties
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild
diff --git a/.idea/caches/build_file_checksums.ser b/.idea/caches/build_file_checksums.ser
new file mode 100644
index 0000000..2633a44
Binary files /dev/null and b/.idea/caches/build_file_checksums.ser differ
diff --git a/.idea/codeStyles/Project.xml b/.idea/codeStyles/Project.xml
new file mode 100644
index 0000000..30aa626
--- /dev/null
+++ b/.idea/codeStyles/Project.xml
@@ -0,0 +1,29 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
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+
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+
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+
\ No newline at end of file
diff --git a/.idea/gradle.xml b/.idea/gradle.xml
new file mode 100644
index 0000000..7ac24c7
--- /dev/null
+++ b/.idea/gradle.xml
@@ -0,0 +1,18 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
new file mode 100644
index 0000000..99202cc
--- /dev/null
+++ b/.idea/misc.xml
@@ -0,0 +1,34 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/runConfigurations.xml b/.idea/runConfigurations.xml
new file mode 100644
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--- /dev/null
+++ b/.idea/runConfigurations.xml
@@ -0,0 +1,12 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/app/.gitignore b/app/.gitignore
new file mode 100644
index 0000000..796b96d
--- /dev/null
+++ b/app/.gitignore
@@ -0,0 +1 @@
+/build
diff --git a/app/build.gradle b/app/build.gradle
new file mode 100644
index 0000000..0a1b735
--- /dev/null
+++ b/app/build.gradle
@@ -0,0 +1,37 @@
+apply plugin: 'com.android.application'
+
+android {
+ compileSdkVersion 28
+ defaultConfig {
+ applicationId "com.example.niket.swipelefttoremoverecyclerview"
+ minSdkVersion 22
+ targetSdkVersion 28
+ versionCode 1
+ versionName "1.0"
+ testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+ }
+ 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:1.1.3'
+ testImplementation 'junit:junit:4.12'
+ androidTestImplementation 'com.android.support.test:runner:1.0.2'
+ androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
+ implementation 'com.android.support:design:28.0.0'
+ implementation 'com.android.support:recyclerview-v7:28.0.0'
+ implementation 'com.android.support:appcompat-v7:28.0.0-alpha1'
+ // glide image library
+ implementation 'com.github.bumptech.glide:glide:3.7.0'
+
+ // volley http library
+ implementation 'com.android.volley:volley:1.0.0'
+ implementation 'com.google.code.gson:gson:2.6.2'
+}
diff --git a/app/proguard-rules.pro b/app/proguard-rules.pro
new file mode 100644
index 0000000..f1b4245
--- /dev/null
+++ b/app/proguard-rules.pro
@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+# http://developer.android.com/guide/developing/tools/proguard.html
+
+# 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
diff --git a/app/src/androidTest/java/com/example/niket/swipelefttoremoverecyclerview/ExampleInstrumentedTest.java b/app/src/androidTest/java/com/example/niket/swipelefttoremoverecyclerview/ExampleInstrumentedTest.java
new file mode 100644
index 0000000..2e44689
--- /dev/null
+++ b/app/src/androidTest/java/com/example/niket/swipelefttoremoverecyclerview/ExampleInstrumentedTest.java
@@ -0,0 +1,26 @@
+package com.example.niket.swipelefttoremoverecyclerview;
+
+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.*;
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * @see Testing documentation
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+ @Test
+ public void useAppContext() {
+ // Context of the app under test.
+ Context appContext = InstrumentationRegistry.getTargetContext();
+
+ assertEquals("com.example.niket.swipelefttoremoverecyclerview", appContext.getPackageName());
+ }
+}
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
new file mode 100644
index 0000000..83f3aa4
--- /dev/null
+++ b/app/src/main/AndroidManifest.xml
@@ -0,0 +1,26 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/app/src/main/java/com/example/niket/swipelefttoremoverecyclerview/CartListAdapter.java b/app/src/main/java/com/example/niket/swipelefttoremoverecyclerview/CartListAdapter.java
new file mode 100644
index 0000000..571a3da
--- /dev/null
+++ b/app/src/main/java/com/example/niket/swipelefttoremoverecyclerview/CartListAdapter.java
@@ -0,0 +1,80 @@
+package com.example.niket.swipelefttoremoverecyclerview;
+
+import android.content.Context;
+import android.support.v7.widget.RecyclerView;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ImageView;
+import android.widget.RelativeLayout;
+import android.widget.TextView;
+
+import com.bumptech.glide.Glide;
+
+import java.util.List;
+
+public class CartListAdapter extends RecyclerView.Adapter {
+ private Context context;
+ private List- cartList;
+
+ public class MyViewHolder extends RecyclerView.ViewHolder {
+ public TextView name, description, price;
+ public ImageView thumbnail;
+ public RelativeLayout viewBackground, viewForeground;
+
+ public MyViewHolder(View view) {
+ super(view);
+ name = view.findViewById(R.id.name);
+ description = view.findViewById(R.id.description);
+ price = view.findViewById(R.id.price);
+ thumbnail = view.findViewById(R.id.thumbnail);
+ viewBackground = view.findViewById(R.id.view_background);
+ viewForeground = view.findViewById(R.id.view_foreground);
+ }
+ }
+
+
+ public CartListAdapter(Context context, List
- cartList) {
+ this.context = context;
+ this.cartList = cartList;
+ }
+
+ @Override
+ public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
+ View itemView = LayoutInflater.from(parent.getContext())
+ .inflate(R.layout.cart_list_item, parent, false);
+
+ return new MyViewHolder(itemView);
+ }
+
+ @Override
+ public void onBindViewHolder(MyViewHolder holder, final int position) {
+ final Item item = cartList.get(position);
+ holder.name.setText(item.getName());
+ holder.description.setText(item.getDescription());
+ holder.price.setText("₹" + item.getPrice());
+
+ Glide.with(context)
+ .load(item.getThumbnail())
+ .into(holder.thumbnail);
+ }
+
+ @Override
+ public int getItemCount() {
+ return cartList.size();
+ }
+
+ public void removeItem(int position) {
+ cartList.remove(position);
+ // notify the item removed by position
+ // to perform recycler view delete animations
+ // NOTE: don't call notifyDataSetChanged()
+ notifyItemRemoved(position);
+ }
+
+ public void restoreItem(Item item, int position) {
+ cartList.add(position, item);
+ // notify item added by position
+ notifyItemInserted(position);
+ }
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/example/niket/swipelefttoremoverecyclerview/Item.java b/app/src/main/java/com/example/niket/swipelefttoremoverecyclerview/Item.java
new file mode 100644
index 0000000..2a7411a
--- /dev/null
+++ b/app/src/main/java/com/example/niket/swipelefttoremoverecyclerview/Item.java
@@ -0,0 +1,52 @@
+package com.example.niket.swipelefttoremoverecyclerview;
+
+public class Item {
+ int id;
+ String name;
+ String description;
+ double price;
+ String thumbnail;
+
+ public Item() {
+ }
+
+ public int getId() {
+ return id;
+ }
+
+ public void setId(int id) {
+ this.id = id;
+ }
+
+ public String getName() {
+ return name;
+ }
+
+ public void setName(String name) {
+ this.name = name;
+ }
+
+ public String getDescription() {
+ return description;
+ }
+
+ public void setDescription(String description) {
+ this.description = description;
+ }
+
+ public double getPrice() {
+ return price;
+ }
+
+ public void setPrice(double price) {
+ this.price = price;
+ }
+
+ public String getThumbnail() {
+ return thumbnail;
+ }
+
+ public void setThumbnail(String thumbnail) {
+ this.thumbnail = thumbnail;
+ }
+}
diff --git a/app/src/main/java/com/example/niket/swipelefttoremoverecyclerview/MainActivity.java b/app/src/main/java/com/example/niket/swipelefttoremoverecyclerview/MainActivity.java
new file mode 100644
index 0000000..00b4048
--- /dev/null
+++ b/app/src/main/java/com/example/niket/swipelefttoremoverecyclerview/MainActivity.java
@@ -0,0 +1,140 @@
+package com.example.niket.swipelefttoremoverecyclerview;
+
+import android.graphics.Color;
+import android.os.Bundle;
+import android.support.constraint.ConstraintLayout;
+import android.support.design.widget.CoordinatorLayout;
+import android.support.design.widget.Snackbar;
+import android.support.v7.app.AppCompatActivity;
+import android.support.v7.widget.DefaultItemAnimator;
+import android.support.v7.widget.DividerItemDecoration;
+import android.support.v7.widget.LinearLayoutManager;
+import android.support.v7.widget.RecyclerView;
+import android.support.v7.widget.Toolbar;
+import android.support.v7.widget.helper.ItemTouchHelper;
+import android.util.Log;
+import android.view.Menu;
+import android.view.View;
+import android.widget.Toast;
+
+import com.android.volley.Response;
+import com.android.volley.VolleyError;
+import com.android.volley.toolbox.JsonArrayRequest;
+import com.google.gson.Gson;
+import com.google.gson.reflect.TypeToken;
+
+import org.json.JSONArray;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class MainActivity extends AppCompatActivity implements RecyclerItemTouchHelper.RecyclerItemTouchHelperListener {
+
+ private static final String TAG = MainActivity.class.getSimpleName();
+ private RecyclerView recyclerView;
+ private List
- cartList;
+ private CartListAdapter mAdapter;
+ private ConstraintLayout coordinatorLayout;
+
+ // url to fetch menu json
+ private static final String URL = "https://api.androidhive.info/json/menu.json";
+
+ @Override
+ protected void onCreate(Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+ setContentView(R.layout.activity_main);
+
+ recyclerView = findViewById(R.id.recycler_view);
+ coordinatorLayout = findViewById(R.id.coordinator_layout);
+ cartList = new ArrayList<>();
+ mAdapter = new CartListAdapter(this, cartList);
+
+ RecyclerView.LayoutManager mLayoutManager = new LinearLayoutManager(getApplicationContext());
+ recyclerView.setLayoutManager(mLayoutManager);
+ recyclerView.setItemAnimator(new DefaultItemAnimator());
+ recyclerView.addItemDecoration(new DividerItemDecoration(this, DividerItemDecoration.VERTICAL));
+ recyclerView.setAdapter(mAdapter);
+
+ // adding item touch helper
+ // only ItemTouchHelper.LEFT added to detect Right to Left swipe
+ // if you want both Right -> Left and Left -> Right
+ // add pass ItemTouchHelper.LEFT | ItemTouchHelper.RIGHT as param
+ ItemTouchHelper.SimpleCallback itemTouchHelperCallback = new RecyclerItemTouchHelper(0, ItemTouchHelper.LEFT, this);
+ new ItemTouchHelper(itemTouchHelperCallback).attachToRecyclerView(recyclerView);
+
+
+ // making http call and fetching menu json
+ prepareCart();
+ }
+
+ /**
+ * method make volley network call and parses json
+ */
+ private void prepareCart() {
+ JsonArrayRequest request = new JsonArrayRequest(URL,
+ new Response.Listener() {
+ @Override
+ public void onResponse(JSONArray response) {
+ if (response == null) {
+ Toast.makeText(getApplicationContext(), "Couldn't fetch the menu! Pleas try again.", Toast.LENGTH_LONG).show();
+ return;
+ }
+
+ List
- items = new Gson().fromJson(response.toString(), new TypeToken>() {
+ }.getType());
+
+ // adding items to cart list
+ cartList.clear();
+ cartList.addAll(items);
+
+ // refreshing recycler view
+ mAdapter.notifyDataSetChanged();
+ }
+ }, new Response.ErrorListener() {
+ @Override
+ public void onErrorResponse(VolleyError error) {
+ // error in getting json
+ Log.d(TAG, "Error: " + error.getMessage());
+ Toast.makeText(getApplicationContext(), "Error: " + error.getMessage(), Toast.LENGTH_SHORT).show();
+ }
+ });
+
+ MyApplication.getInstance().addToRequestQueue(request);
+ }
+
+ /**
+ * callback when recycler view is swiped
+ * item will be removed on swiped
+ * undo option will be provided in snackbar to restore the item
+ */
+ @Override
+ public void onSwiped(RecyclerView.ViewHolder viewHolder, int direction, int position) {
+ if (viewHolder instanceof CartListAdapter.MyViewHolder) {
+ // get the removed item name to display it in snack bar
+ String name = cartList.get(viewHolder.getAdapterPosition()).getName();
+
+ // backup of removed item for undo purpose
+ final Item deletedItem = cartList.get(viewHolder.getAdapterPosition());
+ final int deletedIndex = viewHolder.getAdapterPosition();
+
+ // remove the item from recycler view
+ mAdapter.removeItem(viewHolder.getAdapterPosition());
+
+ // showing snack bar with Undo option
+ Snackbar snackbar = Snackbar
+ .make(coordinatorLayout, name + " removed from cart!", Snackbar.LENGTH_LONG);
+ snackbar.setAction("UNDO", new View.OnClickListener() {
+ @Override
+ public void onClick(View view) {
+
+ // undo is selected, restore the deleted item
+ mAdapter.restoreItem(deletedItem, deletedIndex);
+ }
+ });
+ snackbar.setActionTextColor(Color.YELLOW);
+ snackbar.show();
+ }
+ }
+
+
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/example/niket/swipelefttoremoverecyclerview/MyApplication.java b/app/src/main/java/com/example/niket/swipelefttoremoverecyclerview/MyApplication.java
new file mode 100644
index 0000000..ae32859
--- /dev/null
+++ b/app/src/main/java/com/example/niket/swipelefttoremoverecyclerview/MyApplication.java
@@ -0,0 +1,53 @@
+package com.example.niket.swipelefttoremoverecyclerview;
+
+import android.app.Application;
+import android.text.TextUtils;
+
+import com.android.volley.Request;
+import com.android.volley.RequestQueue;
+import com.android.volley.toolbox.Volley;
+
+public class MyApplication extends Application {
+
+ public static final String TAG = MyApplication.class
+ .getSimpleName();
+
+ private RequestQueue mRequestQueue;
+
+ private static MyApplication mInstance;
+
+ @Override
+ public void onCreate() {
+ super.onCreate();
+ mInstance = this;
+ }
+
+ public static synchronized MyApplication getInstance() {
+ return mInstance;
+ }
+
+ public RequestQueue getRequestQueue() {
+ if (mRequestQueue == null) {
+ mRequestQueue = Volley.newRequestQueue(getApplicationContext());
+ }
+
+ return mRequestQueue;
+ }
+
+ public void addToRequestQueue(Request req, String tag) {
+ // set the default tag if tag is empty
+ req.setTag(TextUtils.isEmpty(tag) ? TAG : tag);
+ getRequestQueue().add(req);
+ }
+
+ public void addToRequestQueue(Request req) {
+ req.setTag(TAG);
+ getRequestQueue().add(req);
+ }
+
+ public void cancelPendingRequests(Object tag) {
+ if (mRequestQueue != null) {
+ mRequestQueue.cancelAll(tag);
+ }
+ }
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/example/niket/swipelefttoremoverecyclerview/RecyclerItemTouchHelper.java b/app/src/main/java/com/example/niket/swipelefttoremoverecyclerview/RecyclerItemTouchHelper.java
new file mode 100644
index 0000000..b349aa6
--- /dev/null
+++ b/app/src/main/java/com/example/niket/swipelefttoremoverecyclerview/RecyclerItemTouchHelper.java
@@ -0,0 +1,72 @@
+package com.example.niket.swipelefttoremoverecyclerview;
+
+import android.graphics.Canvas;
+import android.support.v7.widget.RecyclerView;
+import android.support.v7.widget.helper.ItemTouchHelper;
+import android.view.View;
+
+/**
+ * Created by ravi on 29/09/17.
+ */
+
+public class RecyclerItemTouchHelper extends ItemTouchHelper.SimpleCallback {
+ private RecyclerItemTouchHelperListener listener;
+
+ public RecyclerItemTouchHelper(int dragDirs, int swipeDirs, RecyclerItemTouchHelperListener listener) {
+ super(dragDirs, swipeDirs);
+ this.listener = listener;
+ }
+
+ @Override
+ public boolean onMove(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder, RecyclerView.ViewHolder target) {
+ return true;
+ }
+
+ @Override
+ public void onSelectedChanged(RecyclerView.ViewHolder viewHolder, int actionState) {
+ if (viewHolder != null) {
+ final View foregroundView = ((CartListAdapter.MyViewHolder) viewHolder).viewForeground;
+
+ getDefaultUIUtil().onSelected(foregroundView);
+ }
+ }
+
+ @Override
+ public void onChildDrawOver(Canvas c, RecyclerView recyclerView,
+ RecyclerView.ViewHolder viewHolder, float dX, float dY,
+ int actionState, boolean isCurrentlyActive) {
+ final View foregroundView = ((CartListAdapter.MyViewHolder) viewHolder).viewForeground;
+ getDefaultUIUtil().onDrawOver(c, recyclerView, foregroundView, dX, dY,
+ actionState, isCurrentlyActive);
+ }
+
+ @Override
+ public void clearView(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder) {
+ final View foregroundView = ((CartListAdapter.MyViewHolder) viewHolder).viewForeground;
+ getDefaultUIUtil().clearView(foregroundView);
+ }
+
+ @Override
+ public void onChildDraw(Canvas c, RecyclerView recyclerView,
+ RecyclerView.ViewHolder viewHolder, float dX, float dY,
+ int actionState, boolean isCurrentlyActive) {
+ final View foregroundView = ((CartListAdapter.MyViewHolder) viewHolder).viewForeground;
+
+ getDefaultUIUtil().onDraw(c, recyclerView, foregroundView, dX, dY,
+ actionState, isCurrentlyActive);
+ }
+
+ @Override
+ public void onSwiped(RecyclerView.ViewHolder viewHolder, int direction) {
+ listener.onSwiped(viewHolder, direction, viewHolder.getAdapterPosition());
+ }
+
+ @Override
+ public int convertToAbsoluteDirection(int flags, int layoutDirection) {
+ return super.convertToAbsoluteDirection(flags, layoutDirection);
+ }
+
+ public interface RecyclerItemTouchHelperListener {
+ void onSwiped(RecyclerView.ViewHolder viewHolder, int direction, int position);
+ }
+}
\ No newline at end of file
diff --git a/app/src/main/res/drawable-v24/ic_launcher_foreground.xml b/app/src/main/res/drawable-v24/ic_launcher_foreground.xml
new file mode 100644
index 0000000..c7bd21d
--- /dev/null
+++ b/app/src/main/res/drawable-v24/ic_launcher_foreground.xml
@@ -0,0 +1,34 @@
+
+
+
+
+