In the Previous Post, We have create list of items with RecyclerView using appcompat v7.
Now, we have implemented onclick event functionality in the previous post for each list item using stackoverflow link.
Now, I have update the code to latest Android Api RecyclerView default way of implementing
onClick and onLongClick on the each item.
Step 1: Create an Activity with recyclerview
CardViewActivity.java
package com.pratap.cardviews1;
Step 2: Create an Adapter for the recycler with the class RecyclerView.Adapter
CardViewDataAdapter.java
Step 3:
toolbar.xml
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
Step 4:
cardview_row.xml
Step 5:
values/themes.xml
Step 6:
values-21/themes.xml
Step 7:
AndroidManifest.xml
Step 8:
Run the Application:
Download the Source Code
ScreenShots
Now, we have implemented onclick event functionality in the previous post for each list item using stackoverflow link.
Now, I have update the code to latest Android Api RecyclerView default way of implementing
onClick and onLongClick on the each item.
Step 1: Create an Activity with recyclerview
CardViewActivity.java
package com.pratap.cardviews1;
import android.os.Bundle; import android.support.v7.app.ActionBarActivity; import android.support.v7.widget.LinearLayoutManager; import android.support.v7.widget.RecyclerView; import android.support.v7.widget.Toolbar; public class CardViewActivity extends AppCompatActivity { private Toolbar toolbar; private RecyclerView mRecyclerView; private RecyclerView.Adapter mAdapter; private RecyclerView.LayoutManager mLayoutManager; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); toolbar = (Toolbar) findViewById(R.id.toolbar); if (toolbar != null) { setSupportActionBar(toolbar); getSupportActionBar().setTitle("Android Versions"); } final String[] myDataset = { "Alpha", "Beta", "CupCake", "Donut", "Eclair", "Froyo", "Gingerbread", "Honeycomb", "Ice Cream Sandwitch", "JellyBean", "KitKat", "LollyPop" }; mRecyclerView = (RecyclerView) findViewById(R.id.my_recycler_view); // use this setting to improve performance if you know that changes // in content do not change the layout size of the RecyclerView mRecyclerView.setHasFixedSize(true); // use a linear layout manager mRecyclerView.setLayoutManager(new LinearLayoutManager(this)); // create an Object for Adapter mAdapter = new CardViewDataAdapter(myDataset); // set the adapter object to the Recyclerview mRecyclerView.setAdapter(mAdapter); } }
Step 2: Create an Adapter for the recycler with the class RecyclerView.Adapter
CardViewDataAdapter.java
package com.pratap.cardviews1; import android.support.v7.widget.RecyclerView; import android.view.LayoutInflater; import android.view.View; import android.view.View.OnClickListener; import android.view.View.OnLongClickListener; import android.view.ViewGroup; import android.widget.TextView; import android.widget.Toast; public class CardViewDataAdapter extends RecyclerView.Adapter<CardViewDataAdapter.ViewHolder> { private static String[] mDataset; // Provide a suitable constructor (depends on the kind of dataset) public CardViewDataAdapter(String[] myDataset) { mDataset = myDataset; } // Create new views (invoked by the layout manager) @Override public CardViewDataAdapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { // create a new view View itemLayoutView = LayoutInflater.from(parent.getContext()).inflate( R.layout.cardview_row, null); // create ViewHolder ViewHolder viewHolder = new ViewHolder(itemLayoutView); return viewHolder; } // Replace the contents of a view (invoked by the layout manager) @Override public void onBindViewHolder(ViewHolder viewHolder, int position) { // - get data from your itemsData at this position // - replace the contents of the view with that itemsData viewHolder.tvVersionName.setText(mDataset[position].toString()); viewHolder.versionName=mDataset[position]; } // Return the size of your dataset (invoked by the layout manager) @Override public int getItemCount() { return mDataset.length; } // inner class to hold a reference to each item of RecyclerView public static class ViewHolder extends RecyclerView.ViewHolder { public TextView tvVersionName; public String versionName; public ViewHolder(View itemLayoutView) { super(itemLayoutView); tvVersionName = (TextView) itemLayoutView .findViewById(R.id.tvVersionName); itemLayoutView.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { Toast.makeText(v.getContext(), "OnClick Version :" + versionName, Toast.LENGTH_SHORT).show(); } }); itemLayoutView.setOnLongClickListener(new OnLongClickListener() { @Override public boolean onLongClick(View v) { Toast.makeText(v.getContext(), "OnLongClick Version :" + versionName, Toast.LENGTH_SHORT).show(); return true; } }); } } }
Step 3:
toolbar.xml
<?xml version="1.0" encoding="utf-8"?> <android.support.v7.widget.Toolbar 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:id="@+id/toolbar" android:layout_width="match_parent" android:layout_height="wrap_content" android:background="?attr/colorPrimaryDark" android:minHeight="?attr/actionBarSize" app:popupTheme="@style/ThemeOverlay.AppCompat.Light" > </android.support.v7.widget.Toolbar>
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:background="#c9c9c9" android:orientation="vertical" > <include android:id="@+id/toolbar" layout="@layout/toolbar" /> <android.support.v7.widget.RecyclerView android:id="@+id/my_recycler_view" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_margin="5dp" android:scrollbars="vertical" /> </LinearLayout>
Step 4:
cardview_row.xml
<?xml version="1.0" encoding="utf-8"?> <android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android" xmlns:card_view="http://schemas.android.com/apk/res-auto" android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal" card_view:cardCornerRadius="5dp" card_view:cardUseCompatPadding="true" > <RelativeLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_margin="5dp" > <TextView android:id="@+id/tvVersionName" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_centerInParent="true" android:gravity="center" android:minHeight="55dp" android:textColor="@android:color/black" android:textSize="24sp" /> </RelativeLayout> </android.support.v7.widget.CardView>
Step 5:
values/themes.xml
<resources> <style name="AppTheme" parent="AppTheme.Base" /> <style name="AppTheme.Base" parent="Theme.AppCompat.NoActionBar"> <item name="colorPrimary">@color/colorPrimary</item> <item name="colorPrimaryDark">@color/colorPrimaryDark</item> <!-- <item name="android:windowNoTitle">true</item> <item name="windowActionBar">false</item> --> </style> </resources>
Step 6:
values-21/themes.xml
<resources> <style name="AppTheme" parent="AppTheme.Base"> <item name="android:windowContentTransitions">true</item> <item name="android:windowAllowEnterTransitionOverlap">true</item> <item name="android:windowAllowReturnTransitionOverlap">true</item> <item name="android:windowSharedElementEnterTransition">@android:transition/move</item> <item name="android:windowSharedElementExitTransition">@android:transition/move</item> </style> </resources>
Step 7:
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.pratap.cardviews1" android:versionCode="1" android:versionName="1.0" > <uses-sdk android:minSdkVersion="8" android:targetSdkVersion="21" /> <application android:allowBackup="true" android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme" > <activity android:name=".CardViewActivity" android:label="@string/app_name" > <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> </manifest>
Step 8:
Run the Application:
Download the Source Code
ScreenShots
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| recyclerview onclick |
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| recyclerview onlongclick |
