การเข้าถึงรายการใน RecyclerView

build.gradle (Module: app)

apply plugin: 'com.android.application'

android {
    compileSdkVersion 26
    defaultConfig {
        applicationId "com.phaisarn.myapplication"
        minSdkVersion 21
        targetSdkVersion 26
        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:appcompat-v7:26.1.0'
    implementation 'com.android.support.constraint:constraint-layout:1.1.3'
    implementation 'com.android.support:design:26.1.0'
    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.amulyakhare:com.amulyakhare.textdrawable:1.0.1'
    implementation 'com.android.support:cardview-v7:26.1.0'
}

apply plugin: 'com.android.application'

android {

compileSdkVersion 26

defaultConfig {

applicationId "com.phaisarn.myapplication"

minSdkVersion 21

targetSdkVersion 26

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:appcompat-v7:26.1.0'

implementation 'com.android.support.constraint:constraint-layout:1.1.3'

implementation 'com.android.support:design:26.1.0'

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.amulyakhare:com.amulyakhare.textdrawable:1.0.1'

implementation 'com.android.support:cardview-v7:26.1.0'

}

layout/custom_layout.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_marginBottom="15dp"
    app:cardBackgroundColor="#fafafa"
    app:cardCornerRadius="10dp"
    app:cardElevation="3dp">

    <GridLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:columnCount="2"
        android:padding="10dp">

        <ImageView
            android:id="@+id/imageView"
            android:layout_width="45dp"
            android:layout_height="45dp"
            android:layout_marginRight="15dp"
            android:layout_marginTop="5dp"
            android:layout_rowSpan="3" />

        <GridLayout
            android:layout_columnWeight="1"
            android:layout_marginBottom="5dp">

            <TextView
                android:id="@+id/textView_name"
                android:maxLines="1"
                android:maxWidth="170dp"
                android:textColor="#900"
                android:textSize="20sp" />

            <TextView
                android:id="@+id/textView_phone"
                android:layout_columnWeight="1"
                android:gravity="right"
                android:textColor="#090"
                android:textSize="18sp" />
        </GridLayout>

        <TextView
            android:layout_height="2dp"
            android:layout_columnWeight="1"
            android:layout_marginBottom="10dp"
            android:background="#bbb" />

        <GridLayout android:layout_columnWeight="1">

            <TextView
                android:id="@+id/textView_delete"
                android:layout_marginRight="10dp"
                android:drawablePadding="8dp"
                android:text="ลบ"
                android:textColor="#009"
                android:textSize="16sp" />

            <TextView
                android:id="@+id/textView_edit"
                android:layout_width="wrap_content"
                android:layout_marginLeft="10dp"
                android:drawablePadding="8dp"
                android:text="แก้ไข"
                android:textColor="#009"
                android:textSize="16sp" />

            <Space android:layout_columnWeight="1" />

            <TextView
                android:id="@+id/textView_call"
                android:drawableLeft="@drawable/up"
                android:drawablePadding="8dp"
                android:gravity="right"
                android:text="โทรออก"
                android:textColor="#009"
                android:textSize="16sp" />
        </GridLayout>
    </GridLayout>
</android.support.v7.widget.CardView>

<?xml version="1.0" encoding="utf-8"?>

<android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"

xmlns:app="http://schemas.android.com/apk/res-auto"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:layout_marginBottom="15dp"

app:cardBackgroundColor="#fafafa"

app:cardCornerRadius="10dp"

app:cardElevation="3dp">

<GridLayout

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:columnCount="2"

android:padding="10dp">

<ImageView

android:id="@+id/imageView"

android:layout_width="45dp"

android:layout_height="45dp"

android:layout_marginRight="15dp"

android:layout_marginTop="5dp"

android:layout_rowSpan="3" />

<GridLayout

android:layout_columnWeight="1"

android:layout_marginBottom="5dp">

<TextView

android:id="@+id/textView_name"

android:maxLines="1"

android:maxWidth="170dp"

android:textColor="#900"

android:textSize="20sp" />

<TextView

android:id="@+id/textView_phone"

android:layout_columnWeight="1"

android:gravity="right"

android:textColor="#090"

android:textSize="18sp" />

</GridLayout>

<TextView

android:layout_height="2dp"

android:layout_columnWeight="1"

android:layout_marginBottom="10dp"

android:background="#bbb" />

<TextView

android:id="@+id/textView_delete"

android:layout_marginRight="10dp"

android:drawablePadding="8dp"

android:text="ลบ"

android:textColor="#009"

android:textSize="16sp" />

<TextView

android:id="@+id/textView_edit"

android:layout_width="wrap_content"

android:layout_marginLeft="10dp"

android:drawablePadding="8dp"

android:text="แก้ไข"

android:textColor="#009"

android:textSize="16sp" />

<TextView

android:id="@+id/textView_call"

android:drawableLeft="@drawable/up"

android:drawablePadding="8dp"

android:gravity="right"

android:text="โทรออก"

android:textColor="#009"

android:textSize="16sp" />

</GridLayout>

</android.support.v7.widget.CardView>

layout/dialog_layout.xml

<?xml version="1.0" encoding="utf-8"?>
<GridLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:columnCount="2"
    android:padding="20dp"
    android:rowCount="3">

    <TextView
        android:gravity="right"
        android:text="ชื่อ:"
        android:textSize="20sp" />

    <EditText
        android:id="@+id/dialog_name"
        android:layout_width="220dp"
        android:layout_marginLeft="10dp"
        android:textSize="20sp" />

    <Space
        android:layout_height="10dp"
        android:layout_columnSpan="2" />

    <TextView
        android:text="เบอร์โทร:"
        android:textSize="20sp" />

    <EditText
        android:id="@+id/dialog_num"
        android:layout_width="220dp"
        android:layout_marginLeft="10dp"
        android:textSize="20sp" />

</GridLayout>

<?xml version="1.0" encoding="utf-8"?>

<GridLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:columnCount="2"

android:padding="20dp"

android:rowCount="3">

<TextView

android:gravity="right"

android:text="ชื่อ:"

android:textSize="20sp" />

<EditText

android:id="@+id/dialog_name"

android:layout_width="220dp"

android:layout_marginLeft="10dp"

android:textSize="20sp" />

<Space

android:layout_height="10dp"

android:layout_columnSpan="2" />

<TextView

android:text="เบอร์โทร:"

android:textSize="20sp" />

<EditText

android:id="@+id/dialog_num"

android:layout_width="220dp"

android:layout_marginLeft="10dp"

android:textSize="20sp" />

</GridLayout>

content_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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/content_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#cde"
    app:layout_behavior="@string/appbar_scrolling_view_behavior"
    tools:context=".MainActivity"
    tools:showIn="@layout/activity_main">

    <android.support.v7.widget.RecyclerView
        android:id="@+id/recyclerView"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

    </android.support.v7.widget.RecyclerView>

</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout 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/content_main"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:background="#cde"

app:layout_behavior="@string/appbar_scrolling_view_behavior"

tools:context=".MainActivity"

tools:showIn="@layout/activity_main">

<android.support.v7.widget.RecyclerView

android:id="@+id/recyclerView"

android:layout_width="match_parent"

android:layout_height="match_parent">

</android.support.v7.widget.RecyclerView>

</LinearLayout>

ConfirmDialog.java

package com.phaisarn.myapplication;

import android.app.Dialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.support.v4.app.DialogFragment;
import android.support.v7.app.AlertDialog;

public class ConfirmDialog extends DialogFragment {
    /* ควรสร้างตัวเลือกแบบ enum สำหรับใช้เปรียบเทียบว่าปุ่มใดถูกคลิก จะช่วยลดข้อผิดพลาดได้มากกว่าการใช้ค่าเป็นสตริง */
    enum Button {    //จะอ้างถึง enum นี้ในแบบ ConfirmDialog.Button
        Negative,
        Positive
    }

    public ConfirmDialog() {
    }

    public static ConfirmDialog newInstance(
            String msg, String negText, String posText) {

        ConfirmDialog dialog = new ConfirmDialog();
        Bundle args = new Bundle();
        args.putString("message", msg);
        args.putString("negText", negText);
        args.putString("posText", posText);
        dialog.setArguments(args);
        return dialog;
    }

    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        String message = getArguments().getString("message");
        String posText = getArguments().getString("posText");
        String negText = getArguments().getString("negText");

        AlertDialog.Builder builder =
                new AlertDialog.Builder(getActivity())

                        .setMessage(message)
                        .setNegativeButton(negText,
                                new DialogInterface.OnClickListener() {

                                    @Override
                                    public void onClick(DialogInterface dialog, int i) {
                                        mListener.onFinishDialog(ConfirmDialog.Button.Negative);
                                    }
                                })
                        .setPositiveButton(posText,
                                new DialogInterface.OnClickListener() {

                                    @Override
                                    public void onClick(DialogInterface dialog, int i) {
                                        mListener.onFinishDialog(ConfirmDialog.Button.Positive);
                                    }
                                });

        return builder.create();
    }

    interface OnFinishDialogListener {
        void onFinishDialog(ConfirmDialog.Button button);
        //กำหนด Type ของพารามิเตอร์เป็น enum ที่สร้างขึ้น
    }

    private OnFinishDialogListener mListener;

    public void setOnFinishDialogListener(OnFinishDialogListener listener) {
        mListener = listener;
    }
}

package com.phaisarn.myapplication;

import android.app.Dialog;

import android.content.DialogInterface;

import android.os.Bundle;

import android.support.v4.app.DialogFragment;

import android.support.v7.app.AlertDialog;

public class ConfirmDialog extends DialogFragment {

/* ควรสร้างตัวเลือกแบบ enum สำหรับใช้เปรียบเทียบว่าปุ่มใดถูกคลิก จะช่วยลดข้อผิดพลาดได้มากกว่าการใช้ค่าเป็นสตริง */

enum Button { //จะอ้างถึง enum นี้ในแบบ ConfirmDialog.Button

Negative,

Positive

}

public ConfirmDialog() {

}

public static ConfirmDialog newInstance(

String msg, String negText, String posText) {

ConfirmDialog dialog = new ConfirmDialog();

Bundle args = new Bundle();

args.putString("message", msg);

args.putString("negText", negText);

args.putString("posText", posText);

dialog.setArguments(args);

return dialog;

}

@Override

public Dialog onCreateDialog(Bundle savedInstanceState) {

String message = getArguments().getString("message");

String posText = getArguments().getString("posText");

String negText = getArguments().getString("negText");

AlertDialog.Builder builder =

new AlertDialog.Builder(getActivity())

.setMessage(message)

.setNegativeButton(negText,

new DialogInterface.OnClickListener() {

@Override

public void onClick(DialogInterface dialog, int i) {

mListener.onFinishDialog(ConfirmDialog.Button.Negative);

}

})

.setPositiveButton(posText,

new DialogInterface.OnClickListener() {

@Override

public void onClick(DialogInterface dialog, int i) {

mListener.onFinishDialog(ConfirmDialog.Button.Positive);

}

});

return builder.create();

}

interface OnFinishDialogListener {

void onFinishDialog(ConfirmDialog.Button button);

//กำหนด Type ของพารามิเตอร์เป็น enum ที่สร้างขึ้น

}

private OnFinishDialogListener mListener;

public void setOnFinishDialogListener(OnFinishDialogListener listener) {

mListener = listener;

}

CustomAdapter.java

package com.phaisarn.myapplication;

import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import com.amulyakhare.textdrawable.TextDrawable;
import com.amulyakhare.textdrawable.util.ColorGenerator;

import java.util.List;

public class CustomAdapter extends RecyclerView.Adapter<CustomHolder> {
    private Context mContext;
    private List<CustomItem> mItems;

    public interface OnTextClickListener {
        void onTextClick(View v, int pos);
    }

    private OnTextClickListener mListener;

    public void setOnTextClickListener(OnTextClickListener listener) {
        mListener = listener;
    }

    public CustomAdapter(Context context, List<CustomItem> items) {
        mContext = context;
        mItems = items;
    }

    @Override
    public CustomHolder onCreateViewHolder(ViewGroup parent, int position) {
        LayoutInflater inflater = LayoutInflater.from(mContext);
        View view = inflater.inflate(R.layout.custom_layout, parent, false);
        return new CustomHolder(view);
    }

    @Override
    public void onBindViewHolder(final CustomHolder vHolder, final int pos) {
        final CustomItem item = mItems.get(pos);
        String letter = String.valueOf(item.name.charAt(0));

        ColorGenerator generator = ColorGenerator.MATERIAL;
        TextDrawable drawable = TextDrawable.builder()
                .buildRoundRect(letter, generator.getRandomColor(), 30);
        vHolder.imageView.setImageDrawable(drawable);

        vHolder.textName.setText(item.name);
        vHolder.textPhone.setText(item.phoneNum);

        vHolder.textDelete.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                int p = vHolder.getAdapterPosition();
                if (p != RecyclerView.NO_POSITION) {
                    mListener.onTextClick(v, p);
                }
            }
        });

        vHolder.textEdit.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                //String str = "ให้สร้าง Custom Dialog เพื่อรับข้อมูลมาแก้ไขค่าเดิม เหมือนที่เคยทำกับ ListView";
                //new AlertDialog.Builder(mContext).setMessage(str).show();
                int p = vHolder.getAdapterPosition();
                if (p != RecyclerView.NO_POSITION) {
                    mListener.onTextClick(v, p);
                }
            }
        });

        vHolder.textCall.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                String phone = item.phoneNum;
                Intent intent = new Intent(Intent.ACTION_DIAL);
                intent.setData((Uri.parse("tel:" + phone)));
                try {
                    mContext.startActivity(intent);
                } catch (SecurityException ex) {
                }
            }
        });
    }

    @Override
    public int getItemCount() {
        return mItems.size();
    }
}

package com.phaisarn.myapplication;

import android.content.Context;

import android.content.Intent;

import android.net.Uri;

import android.support.v7.widget.RecyclerView;

import android.view.LayoutInflater;

import android.view.View;

import android.view.ViewGroup;

import com.amulyakhare.textdrawable.TextDrawable;

import com.amulyakhare.textdrawable.util.ColorGenerator;

import java.util.List;

public class CustomAdapter extends RecyclerView.Adapter<CustomHolder> {

private Context mContext;

private List<CustomItem> mItems;

public interface OnTextClickListener {

void onTextClick(View v, int pos);

}

private OnTextClickListener mListener;

public void setOnTextClickListener(OnTextClickListener listener) {

mListener = listener;

}

public CustomAdapter(Context context, List<CustomItem> items) {

mContext = context;

mItems = items;

}

@Override

public CustomHolder onCreateViewHolder(ViewGroup parent, int position) {

LayoutInflater inflater = LayoutInflater.from(mContext);

View view = inflater.inflate(R.layout.custom_layout, parent, false);

return new CustomHolder(view);

}

@Override

public void onBindViewHolder(final CustomHolder vHolder, final int pos) {

final CustomItem item = mItems.get(pos);

String letter = String.valueOf(item.name.charAt(0));

ColorGenerator generator = ColorGenerator.MATERIAL;

TextDrawable drawable = TextDrawable.builder()

.buildRoundRect(letter, generator.getRandomColor(), 30);

vHolder.imageView.setImageDrawable(drawable);

vHolder.textName.setText(item.name);

vHolder.textPhone.setText(item.phoneNum);

vHolder.textDelete.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

int p = vHolder.getAdapterPosition();

if (p != RecyclerView.NO_POSITION) {

mListener.onTextClick(v, p);

}

});

vHolder.textEdit.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

//String str = "ให้สร้าง Custom Dialog เพื่อรับข้อมูลมาแก้ไขค่าเดิม เหมือนที่เคยทำกับ ListView";

//new AlertDialog.Builder(mContext).setMessage(str).show();

int p = vHolder.getAdapterPosition();

if (p != RecyclerView.NO_POSITION) {

mListener.onTextClick(v, p);

}

});

vHolder.textCall.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

String phone = item.phoneNum;

Intent intent = new Intent(Intent.ACTION_DIAL);

intent.setData((Uri.parse("tel:" + phone)));

try {

mContext.startActivity(intent);

} catch (SecurityException ex) {

}

});

}

@Override

public int getItemCount() {

return mItems.size();

}

CustomItem.java

package com.phaisarn.myapplication;

public class CustomItem {

    public String name;
    public String phoneNum;

    public CustomItem(String name, String phoneNum) {
        this.name = name;
        this.phoneNum = phoneNum;
    }
}

package com.phaisarn.myapplication;

public class CustomItem {

public String name;

public String phoneNum;

public CustomItem(String name, String phoneNum) {

this.name = name;

this.phoneNum = phoneNum;

}

InputDialog.java

package com.phaisarn.myapplication;

import android.app.Dialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.support.v4.app.DialogFragment;
import android.support.v7.app.AlertDialog;
import android.view.View;
import android.widget.EditText;

public class InputDialog extends DialogFragment {

    public InputDialog() {
    }  //empty constructor

    public static InputDialog newInstance(String title, String defName, String defNum) {
        InputDialog dialog = new InputDialog();
        Bundle args = new Bundle();
        args.putString("title", title);
        args.putString("name", defName);
        args.putString("num", defNum);
        dialog.setArguments(args);
        return dialog;
    }

    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        View v = getActivity().getLayoutInflater().inflate(
                R.layout.dialog_layout, null);

        String title = getArguments().getString("title");
        String name = getArguments().getString("name");
        String num = getArguments().getString("num");

        final EditText editName =
                (EditText) v.findViewById(R.id.dialog_name);

        editName.setText(name);

        final EditText editNum =
                (EditText) v.findViewById(R.id.dialog_num);

        editNum.setText(num);

        AlertDialog.Builder alertDialogBuilder =
                new AlertDialog.Builder(getActivity())
                        .setTitle(title)
                        .setView(v)
                        .setNegativeButton("Cancel",
                                new DialogInterface.OnClickListener() {
                                    @Override
                                    public void onClick(DialogInterface dialog, int i) {
                                        dialog.dismiss();
                                    }
                                })
                        .setPositiveButton("OK",
                                new DialogInterface.OnClickListener() {
                                    @Override
                                    public void onClick(DialogInterface dialog, int i) {
                                        mListener.onFinishDialog(editName.getText().toString(), editNum.getText().toString());
                                    }
                                });

        return alertDialogBuilder.create();
    }

    interface OnFinishDialogListener {
        void onFinishDialog(String name, String num);
    }

    private OnFinishDialogListener mListener;

    public void setOnFinishDialogListener(OnFinishDialogListener listener) {
        mListener = listener;
    }
}

package com.phaisarn.myapplication;

import android.app.Dialog;

import android.content.DialogInterface;

import android.os.Bundle;

import android.support.v4.app.DialogFragment;

import android.support.v7.app.AlertDialog;

import android.view.View;

import android.widget.EditText;

public class InputDialog extends DialogFragment {

public InputDialog() {

} //empty constructor

public static InputDialog newInstance(String title, String defName, String defNum) {

InputDialog dialog = new InputDialog();

Bundle args = new Bundle();

args.putString("title", title);

args.putString("name", defName);

args.putString("num", defNum);

dialog.setArguments(args);

return dialog;

}

@Override

public Dialog onCreateDialog(Bundle savedInstanceState) {

View v = getActivity().getLayoutInflater().inflate(

R.layout.dialog_layout, null);

String title = getArguments().getString("title");

String name = getArguments().getString("name");

String num = getArguments().getString("num");

final EditText editName =

(EditText) v.findViewById(R.id.dialog_name);

editName.setText(name);

final EditText editNum =

(EditText) v.findViewById(R.id.dialog_num);

editNum.setText(num);

AlertDialog.Builder alertDialogBuilder =

new AlertDialog.Builder(getActivity())

.setTitle(title)

.setView(v)

.setNegativeButton("Cancel",

new DialogInterface.OnClickListener() {

@Override

public void onClick(DialogInterface dialog, int i) {

dialog.dismiss();

}

})

.setPositiveButton("OK",

new DialogInterface.OnClickListener() {

@Override

public void onClick(DialogInterface dialog, int i) {

mListener.onFinishDialog(editName.getText().toString(), editNum.getText().toString());

}

});

return alertDialogBuilder.create();

}

interface OnFinishDialogListener {

void onFinishDialog(String name, String num);

}

private OnFinishDialogListener mListener;

public void setOnFinishDialogListener(OnFinishDialogListener listener) {

mListener = listener;

}

CustomHolder.java

package com.phaisarn.myapplication;

import android.support.v7.widget.RecyclerView;
import android.view.View;
import android.widget.ImageView;
import android.widget.TextView;

public class CustomHolder extends RecyclerView.ViewHolder {
    public ImageView imageView;
    public TextView textName;
    public TextView textPhone;
    public TextView textDelete;
    public TextView textEdit;
    public TextView textCall;

    public CustomHolder(View view) {
        super(view);

        imageView = (ImageView) view.findViewById(R.id.imageView);
        textName = (TextView) view.findViewById(R.id.textView_name);
        textPhone = (TextView) view.findViewById(R.id.textView_phone);

        textDelete = (TextView) view.findViewById(R.id.textView_delete);
        textEdit = (TextView) view.findViewById(R.id.textView_edit);
        textCall = (TextView) view.findViewById(R.id.textView_call);
    }
}

package com.phaisarn.myapplication;

import android.support.v7.widget.RecyclerView;

import android.view.View;

import android.widget.ImageView;

import android.widget.TextView;

public class CustomHolder extends RecyclerView.ViewHolder {

public ImageView imageView;

public TextView textName;

public TextView textPhone;

public TextView textDelete;

public TextView textEdit;

public TextView textCall;

public CustomHolder(View view) {

super(view);

imageView = (ImageView) view.findViewById(R.id.imageView);

textName = (TextView) view.findViewById(R.id.textView_name);

textPhone = (TextView) view.findViewById(R.id.textView_phone);

textDelete = (TextView) view.findViewById(R.id.textView_delete);

textEdit = (TextView) view.findViewById(R.id.textView_edit);

textCall = (TextView) view.findViewById(R.id.textView_call);

}

MainActivity.java

package com.phaisarn.myapplication;

import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.View;
import android.view.Menu;
import android.view.MenuItem;
import android.support.v4.app.FragmentManager;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;

import java.util.ArrayList;
import java.util.Arrays;

public class MainActivity extends AppCompatActivity {
    private final int ADD = 0;
    private final int EDIT = 1;
    private ArrayList<CustomItem> mItemArray;
    private CustomAdapter mAdapter;
    private RecyclerView mRcv;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);

        mItemArray = new ArrayList<>();
        mItemArray.addAll(Arrays.asList(
                new CustomItem("มานี", "099111xxxx"),
                new CustomItem("มานะ", "099222xxxx"),
                new CustomItem("ปิติ", "099333xxxx"),
                new CustomItem("วีระ", "099444xxxx"),
                new CustomItem("ชูใจ", "099555xxxx"),
                new CustomItem("ครูไพลิน", "099666xxxx")));

        mRcv = (RecyclerView) findViewById(R.id.recyclerView);
        mAdapter = new CustomAdapter(this, mItemArray);
        mRcv.setAdapter(mAdapter);
        mRcv.setLayoutManager(new LinearLayoutManager(this));

        mAdapter.setOnTextClickListener(new CustomAdapter.OnTextClickListener() {
            @Override
            public void onTextClick(View v, int pos) {
                if (v.getId() == R.id.textView_delete) {
                    showConfirmDialog(pos);
                } else if (v.getId() == R.id.textView_edit) {
                    String na = mItemArray.get(pos).name;
                    String no = mItemArray.get(pos).phoneNum;
                    showInputDialog(na, no, EDIT, pos);
                }
            }
        });

        FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
        fab.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                //Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
                //        .setAction("Action", null).show();
                //mItemArray.add(new CustomItem("ใหม่", "098765xxxx"));
                //mAdapter.notifyItemInserted(mItemArray.size() - 1);
                //rcv.scrollToPosition(mItemArray.size() - 1);

                showInputDialog("", "", ADD, 0);
            }
        });
    }

    private void showConfirmDialog(final int position) {
        FragmentManager fm = getSupportFragmentManager();
        ConfirmDialog dlg = ConfirmDialog.newInstance(
                "ท่านต้องการลบรายการนี้จริงหรือไม่?", "ไม่ใช่", "ใช่"); //negative, positive

        dlg.show(fm, null);
        dlg.setOnFinishDialogListener(
                new ConfirmDialog.OnFinishDialogListener() {

                    @Override
                    public void onFinishDialog(ConfirmDialog.Button button) {
                        if (button == ConfirmDialog.Button.Positive) {
                            mItemArray.remove(position);
                            mAdapter.notifyItemRemoved(position);
                        }
                    }
                });
    }

    private void showInputDialog(String defaultName, String defaultNum, final int type, final int pos) {
        FragmentManager fm = getSupportFragmentManager();
        InputDialog dialog = InputDialog.newInstance("ชื่อและเบอร์โทร", defaultName, defaultNum);

        dialog.show(fm, null);
        dialog.setOnFinishDialogListener(
                new InputDialog.OnFinishDialogListener() {
                    @Override
                    public void onFinishDialog(String name, String num) {
                        if (name.trim().isEmpty() || num.trim().isEmpty()) {
                            return;
                        }
                        if (type == ADD) {
                            mItemArray.add(new CustomItem(name, num));
                            mAdapter.notifyItemInserted(mItemArray.size() - 1);
                            mRcv.scrollToPosition(mItemArray.size() - 1);
                        } else if (type == EDIT) {
                            mItemArray.set(pos, new CustomItem(name, num));
                            mAdapter.notifyItemChanged(pos);
                        }
                    }
                });
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds mItemArray 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.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }
}

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package com.phaisarn.myapplication;

import android.os.Bundle;

import android.support.design.widget.FloatingActionButton;

import android.support.v7.app.AppCompatActivity;

import android.support.v7.widget.Toolbar;

import android.view.View;

import android.view.Menu;

import android.view.MenuItem;

import android.support.v4.app.FragmentManager;

import android.support.v7.widget.LinearLayoutManager;

import android.support.v7.widget.RecyclerView;

import java.util.ArrayList;

import java.util.Arrays;

public class MainActivity extends AppCompatActivity {

private final int ADD = 0;

private final int EDIT = 1;

private ArrayList<CustomItem> mItemArray;

private CustomAdapter mAdapter;

private RecyclerView mRcv;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);

setSupportActionBar(toolbar);

mItemArray = new ArrayList<>();

mItemArray.addAll(Arrays.asList(

new CustomItem("มานี", "099111xxxx"),

new CustomItem("มานะ", "099222xxxx"),

new CustomItem("ปิติ", "099333xxxx"),

new CustomItem("วีระ", "099444xxxx"),

new CustomItem("ชูใจ", "099555xxxx"),

new CustomItem("ครูไพลิน", "099666xxxx")));

mRcv = (RecyclerView) findViewById(R.id.recyclerView);

mAdapter = new CustomAdapter(this, mItemArray);

mRcv.setAdapter(mAdapter);

mRcv.setLayoutManager(new LinearLayoutManager(this));

mAdapter.setOnTextClickListener(new CustomAdapter.OnTextClickListener() {

@Override

public void onTextClick(View v, int pos) {

if (v.getId() == R.id.textView_delete) {

showConfirmDialog(pos);

} else if (v.getId() == R.id.textView_edit) {

String na = mItemArray.get(pos).name;

String no = mItemArray.get(pos).phoneNum;

showInputDialog(na, no, EDIT, pos);

}

});

FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);

fab.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View view) {

//Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)

// .setAction("Action", null).show();

//mItemArray.add(new CustomItem("ใหม่", "098765xxxx"));

//mAdapter.notifyItemInserted(mItemArray.size() - 1);

//rcv.scrollToPosition(mItemArray.size() - 1);

showInputDialog("", "", ADD, 0);

}

});

}

private void showConfirmDialog(final int position) {

FragmentManager fm = getSupportFragmentManager();

ConfirmDialog dlg = ConfirmDialog.newInstance(

"ท่านต้องการลบรายการนี้จริงหรือไม่?", "ไม่ใช่", "ใช่"); //negative, positive

dlg.show(fm, null);

dlg.setOnFinishDialogListener(

new ConfirmDialog.OnFinishDialogListener() {

@Override

public void onFinishDialog(ConfirmDialog.Button button) {

if (button == ConfirmDialog.Button.Positive) {

mItemArray.remove(position);

mAdapter.notifyItemRemoved(position);

}

});

}

private void showInputDialog(String defaultName, String defaultNum, final int type, final int pos) {

FragmentManager fm = getSupportFragmentManager();

InputDialog dialog = InputDialog.newInstance("ชื่อและเบอร์โทร", defaultName, defaultNum);

dialog.show(fm, null);

dialog.setOnFinishDialogListener(

new InputDialog.OnFinishDialogListener() {

@Override

public void onFinishDialog(String name, String num) {

if (name.trim().isEmpty() || num.trim().isEmpty()) {

return;

}

if (type == ADD) {

mItemArray.add(new CustomItem(name, num));

mAdapter.notifyItemInserted(mItemArray.size() - 1);

mRcv.scrollToPosition(mItemArray.size() - 1);

} else if (type == EDIT) {

mItemArray.set(pos, new CustomItem(name, num));

mAdapter.notifyItemChanged(pos);

}

});

}

@Override

public boolean onCreateOptionsMenu(Menu menu) {

// Inflate the menu; this adds mItemArray 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.

int id = item.getItemId();

//noinspection SimplifiableIfStatement

if (id == R.id.action_settings) {

return true;

}

return super.onOptionsItemSelected(item);

}

รูปที่ใช้

Phaisarn Sutheebanjard

blog.phaisarn.com

การเข้าถึงรายการใน RecyclerView