การจัดการ ListView Item (search, add, edit, remove)

layout/dialog_layout.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:orientation="vertical"
    android:padding="20dp">

    <TextView
        android:id="@+id/dialog_text"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_margin="5dp"
        android:textSize="18sp" />

    <EditText
        android:id="@+id/dialog_edit"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginLeft="5dp" />

</LinearLayout>

<?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:orientation="vertical"

android:padding="20dp">

<TextView

android:id="@+id/dialog_text"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:layout_margin="5dp"

android:textSize="18sp" />

<EditText

android:id="@+id/dialog_edit"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:layout_marginLeft="5dp" />

</LinearLayout>

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.text.InputType;
import android.view.View;
import android.widget.EditText;
import android.widget.TextView;

public class InputDialog extends DialogFragment {
    public InputDialog() {
    }

    enum DataType {
        String,
        Number,
        Password
    }

    public static InputDialog newInstance(String msg, String defaultValue, DataType type) {
        InputDialog dialog = new InputDialog();
        Bundle args = new Bundle();
        args.putString("message", msg);
        args.putString("defaultValue", defaultValue);
        args.putSerializable("type", type);
        dialog.setArguments(args);
        return dialog;
    }

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

        TextView textView = (TextView) v.findViewById(R.id.dialog_text);
        textView.setText(message);

        final EditText editText = (EditText) v.findViewById(R.id.dialog_edit);
        String defValue = getArguments().getString("defaultValue");
        editText.setText(defValue);

        DataType type = (DataType) getArguments().getSerializable("type");
        if (type == DataType.String) {
            editText.setInputType(InputType.TYPE_CLASS_TEXT);
        } else if (type == DataType.Number) {
            editText.setInputType(InputType.TYPE_CLASS_NUMBER);
        } else if (type == DataType.Password) {
            editText.setInputType(InputType.TYPE_TEXT_VARIATION_PASSWORD | InputType.TYPE_CLASS_TEXT);
        }

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

        return alertDialogBuilder.create();
    }

    interface OnFinishDialogListener {
        void onFinishDialog(String result);
    }

    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.text.InputType;

import android.view.View;

import android.widget.EditText;

import android.widget.TextView;

public class InputDialog extends DialogFragment {

public InputDialog() {

}

enum DataType {

String,

Number,

Password

}

public static InputDialog newInstance(String msg, String defaultValue, DataType type) {

InputDialog dialog = new InputDialog();

Bundle args = new Bundle();

args.putString("message", msg);

args.putString("defaultValue", defaultValue);

args.putSerializable("type", type);

dialog.setArguments(args);

return dialog;

}

@Override

public Dialog onCreateDialog(Bundle savedInstanceState) {

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

View v = getActivity().getLayoutInflater().inflate(R.layout.dialog_layout, null);

TextView textView = (TextView) v.findViewById(R.id.dialog_text);

textView.setText(message);

final EditText editText = (EditText) v.findViewById(R.id.dialog_edit);

String defValue = getArguments().getString("defaultValue");

editText.setText(defValue);

DataType type = (DataType) getArguments().getSerializable("type");

if (type == DataType.String) {

editText.setInputType(InputType.TYPE_CLASS_TEXT);

} else if (type == DataType.Number) {

editText.setInputType(InputType.TYPE_CLASS_NUMBER);

} else if (type == DataType.Password) {

editText.setInputType(InputType.TYPE_TEXT_VARIATION_PASSWORD | InputType.TYPE_CLASS_TEXT);

}

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

.setView(v)

.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {

@Override

public void onClick(DialogInterface dialog, int which) {

dialog.dismiss();

}

})

.setPositiveButton("OK", new DialogInterface.OnClickListener() {

@Override

public void onClick(DialogInterface dialog, int which) {

mListener.onFinishDialog(editText.getText().toString());

}

});

return alertDialogBuilder.create();

}

interface OnFinishDialogListener {

void onFinishDialog(String result);

}

private OnFinishDialogListener mListener;

public void setOnFinishDialogListener(OnFinishDialogListener listener) {

mListener = listener;

}

ItemDialog.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 ItemDialog extends DialogFragment {

    public ItemDialog() {
    }

    public static ItemDialog newInstance(String title, String[] items) {
        ItemDialog dialog = new ItemDialog();
        Bundle args = new Bundle();
        args.putString("title", title);
        args.putStringArray("items", items);
        dialog.setArguments(args);
        return dialog;
    }

    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        String title = getArguments().getString("title");
        String[] items = getArguments().getStringArray("items");

        AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(getActivity())
                .setTitle(title)
                .setItems(items, new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        mListener.onFinishDialog(which);
                    }
                })
                .setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        mListener.onFinishDialog(-1);
                    }
                });

        return alertDialogBuilder.create();
    }

    interface OnFinishDialogListener {
        void onFinishDialog(int selectedIndex);
    }

    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 ItemDialog extends DialogFragment {

public ItemDialog() {

}

public static ItemDialog newInstance(String title, String[] items) {

ItemDialog dialog = new ItemDialog();

Bundle args = new Bundle();

args.putString("title", title);

args.putStringArray("items", items);

dialog.setArguments(args);

return dialog;

}

@Override

public Dialog onCreateDialog(Bundle savedInstanceState) {

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

String[] items = getArguments().getStringArray("items");

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

.setTitle(title)

.setItems(items, new DialogInterface.OnClickListener() {

@Override

public void onClick(DialogInterface dialog, int which) {

mListener.onFinishDialog(which);

}

})

.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {

@Override

public void onClick(DialogInterface dialog, int which) {

mListener.onFinishDialog(-1);

}

});

return alertDialogBuilder.create();

}

interface OnFinishDialogListener {

void onFinishDialog(int selectedIndex);

}

private OnFinishDialogListener mListener;

public void setOnFinishDialogListener(OnFinishDialogListener listener) {

mListener = listener;

}

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;

}

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout 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:fitsSystemWindows="true"
    tools:context=".MainActivity">

    <android.support.design.widget.AppBarLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:theme="@style/AppTheme.AppBarOverlay">

        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            android:background="?attr/colorPrimary"
            android:focusableInTouchMode="true"
            app:popupTheme="@style/AppTheme.PopupOverlay">   <!-- ***** -->

            <ImageView
                android:id="@+id/image_back"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginRight="15dp"
                android:src="@drawable/ic_arrow" />

            <EditText
                android:id="@+id/text_filter"
                android:layout_width="160dp"
                android:layout_height="wrap_content"
                android:layout_margin="15dp"
                android:background="#fff"
                android:drawableLeft="@drawable/ic_search"
                android:padding="4dp"
                android:textColor="#00f"
                android:textSize="16sp" />

            <ImageView
                android:id="@+id/image_add"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginLeft="10dp"
                android:src="@drawable/ic_add" />

            <ImageView
                android:id="@+id/image_edit"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginLeft="15dp"
                android:src="@drawable/ic_edit" />

            <ImageView
                android:id="@+id/image_delete"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginLeft="15dp"
                android:src="@drawable/ic_delete" />

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

    </android.support.design.widget.AppBarLayout>

    <include layout="@layout/content_main" />

    <android.support.design.widget.FloatingActionButton
        android:id="@+id/fab"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="bottom|end"
        android:layout_margin="@dimen/fab_margin"
        app:srcCompat="@android:drawable/ic_dialog_email" />

</android.support.design.widget.CoordinatorLayout>

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

<android.support.design.widget.CoordinatorLayout 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:fitsSystemWindows="true"

tools:context=".MainActivity">

<android.support.design.widget.AppBarLayout

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:theme="@style/AppTheme.AppBarOverlay">

<android.support.v7.widget.Toolbar

android:id="@+id/toolbar"

android:layout_width="match_parent"

android:layout_height="?attr/actionBarSize"

android:background="?attr/colorPrimary"

android:focusableInTouchMode="true"

app:popupTheme="@style/AppTheme.PopupOverlay">

<ImageView

android:id="@+id/image_back"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_marginRight="15dp"

android:src="@drawable/ic_arrow" />

<EditText

android:id="@+id/text_filter"

android:layout_width="160dp"

android:layout_height="wrap_content"

android:layout_margin="15dp"

android:background="#fff"

android:drawableLeft="@drawable/ic_search"

android:padding="4dp"

android:textColor="#00f"

android:textSize="16sp" />

<ImageView

android:id="@+id/image_add"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_marginLeft="10dp"

android:src="@drawable/ic_add" />

<ImageView

android:id="@+id/image_edit"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_marginLeft="15dp"

android:src="@drawable/ic_edit" />

<ImageView

android:id="@+id/image_delete"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_marginLeft="15dp"

android:src="@drawable/ic_delete" />

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

</android.support.design.widget.AppBarLayout>

<android.support.design.widget.FloatingActionButton

android:id="@+id/fab"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_gravity="bottom|end"

android:layout_margin="@dimen/fab_margin"

app:srcCompat="@android:drawable/ic_dialog_email" />

</android.support.design.widget.CoordinatorLayout>

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"
    app:layout_behavior="@string/appbar_scrolling_view_behavior"
    tools:context=".MainActivity"
    tools:showIn="@layout/activity_main">

    <ListView
        android:id="@+id/listView"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

</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"

app:layout_behavior="@string/appbar_scrolling_view_behavior"

tools:context=".MainActivity"

tools:showIn="@layout/activity_main">

<ListView

android:id="@+id/listView"

android:layout_width="match_parent"

android:layout_height="match_parent" />

</LinearLayout>

MainActivity.java

package com.phaisarn.myapplication;

import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
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.text.Editable;
import android.text.TextWatcher;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.Toast;

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

public class MainActivity extends AppCompatActivity {
    private ListView mListView;
    private ArrayAdapter<String> mAdapter;
    private ArrayList<String> mArrayList = new ArrayList<>();
    private String[] mItems;
    private final int ADD = 1;
    private final int EDIT = 2;
    private EditText mTextFilter;

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

        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();
            }
        });

        mItems = new String[]{"Android", "Panda", "ant", "Tom and Jerry", "Banana", "Thailand", "10th Anniversary"};
        mArrayList.addAll(Arrays.asList(mItems));
        mListView = (ListView) findViewById(R.id.listView);
        setListViewAdapter();

        setOnBackClick(toolbar);
        setOnTextChanged(toolbar);
        setOnAddClick(toolbar);
        setOnEditClick(toolbar);
        setOnDeleteClick(toolbar);
        setOnItemLongClick();
    }

    private void setOnTextChanged(Toolbar toolbar) {
        mTextFilter = (EditText) toolbar.findViewById(R.id.text_filter);
        mTextFilter.addTextChangedListener(new TextWatcher() {
            @Override
            public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {
                String str = mTextFilter.getText().toString().trim();
                if (str.length() > 0) {
                    mAdapter.getFilter().filter(str);
                    if (mAdapter.isEmpty()) {
                        //showToast("ไม่มีรายการตรงกับที่ระบุ");
                    }
                } else {
                    setListViewAdapter();
                }
            }

            @Override
            public void beforeTextChanged(CharSequence cs, int i, int i1, int i2) {
            }

            @Override
            public void afterTextChanged(Editable editable) {
            }
        });
    }

    private void setOnBackClick(Toolbar toolbar) {
        toolbar.findViewById(R.id.image_back)
                .setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View view) {
                        setListViewAdapter();
                        mTextFilter.setText("");
                    }
                });
    }

    private void setOnAddClick(Toolbar toolbar) {
        toolbar.findViewById(R.id.image_add)
                .setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View view) {
                        showInputDialog("กำหนดชื่อรายการใหม่", "", ADD);
                    }
                });
    }

    private void setOnEditClick(Toolbar toolbar) {
        toolbar.findViewById(R.id.image_edit)
                .setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View view) {
                        int pos = mListView.getCheckedItemPosition();
                        if (pos < 0) {
                            showToast("กรุณาเลือกรายการที่จะแก้ไข");
                            return;
                        }
                        showInputDialog("แก้ไขชื่อรายการเป็น...", getCheckedItem(), EDIT);
                    }
                });
    }

    private void setOnDeleteClick(Toolbar toolbar) {
        toolbar.findViewById(R.id.image_delete)
                .setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View view) {
                        int pos = mListView.getCheckedItemPosition();
                        if (pos < 0) {
                            showToast("กรุณาเลือกรายการที่จะลบ");
                            return;
                        }
                        showConfirmDialog();
                    }
                });
    }

    private void setOnItemLongClick() {
        mListView.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {
            @Override
            public boolean onItemLongClick(AdapterView<?> adapterView, View view, int i, long l) {
                mListView.setItemChecked(i, true);
                String item = mListView.getItemAtPosition(i).toString();
                showItemDialog(item);
                return true;
            }
        });
    }

    private void setListViewAdapter() {
        mAdapter = new ArrayAdapter<>(getBaseContext(), android.R.layout.simple_list_item_checked, mArrayList);
        mListView.setChoiceMode(ListView.CHOICE_MODE_SINGLE);
        mListView.setAdapter(mAdapter);
    }

    private void showToast(String text) {
        Toast.makeText(getBaseContext(), text, Toast.LENGTH_SHORT).show();
    }

    private void showItemDialog(String item) {
        FragmentManager fm = getSupportFragmentManager();
        final String[] list = {"แก้ไข", "ลบ"};
        ItemDialog dialog = ItemDialog.newInstance("จะทำอย่างไรกับรายการ: " + item, list);
        dialog.show(fm, null);
        dialog.setOnFinishDialogListener(new ItemDialog.OnFinishDialogListener() {
            @Override
            public void onFinishDialog(int selectedIndex) {
                if (selectedIndex < 0) {
                    return;
                }
                Toast.makeText(getBaseContext(), "ให้ลองทำเพิ่มเติมเด้วยตนเอง", Toast.LENGTH_SHORT).show();
            }
        });
    }

    private void showInputDialog(String msg, String defaultValue, final int type) {
        FragmentManager fm = getSupportFragmentManager();
        InputDialog dialog = InputDialog.newInstance(msg, defaultValue, InputDialog.DataType.String);
        dialog.show(fm, null);

        dialog.setOnFinishDialogListener(new InputDialog.OnFinishDialogListener() {
            @Override
            public void onFinishDialog(String result) {
                if (result.trim().isEmpty()) {
                    return;
                }

                if (type == ADD) {
                    mArrayList.add(result);
                } else if (type == EDIT) {
                    String checkedItem = getCheckedItem();
                    int pos = mArrayList.indexOf(checkedItem);
                    mArrayList.set(pos, result);
                }
                mAdapter.notifyDataSetChanged();
                reFilter();
            }
        });

    }

    private void showConfirmDialog() {
        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) {
                            String checkedItem = getCheckedItem();
                            mArrayList.remove(checkedItem);
                            mAdapter.notifyDataSetChanged();
                            mListView.clearChoices();
                            reFilter();
                        }
                    }
                });
    }

    private String getCheckedItem() {
        int pos = mListView.getCheckedItemPosition();
        String item = mListView.getItemAtPosition(pos).toString();
        return item;
    }

    private void reFilter() {
        String str = mTextFilter.getText().toString();
        if (!str.equals("")) {
            mTextFilter.setText("");
            mTextFilter.setText(str);
        }
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items 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.design.widget.Snackbar;

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.text.Editable;

import android.text.TextWatcher;

import android.widget.AdapterView;

import android.widget.ArrayAdapter;

import android.widget.EditText;

import android.widget.ListView;

import android.widget.Toast;

import java.util.ArrayList;

import java.util.Arrays;

public class MainActivity extends AppCompatActivity {

private ListView mListView;

private ArrayAdapter<String> mAdapter;

private ArrayList<String> mArrayList = new ArrayList<>();

private String[] mItems;

private final int ADD = 1;

private final int EDIT = 2;

private EditText mTextFilter;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

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

setSupportActionBar(toolbar);

getSupportActionBar().setDisplayShowTitleEnabled(false);

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();

}

});

mItems = new String[]{"Android", "Panda", "ant", "Tom and Jerry", "Banana", "Thailand", "10th Anniversary"};

mArrayList.addAll(Arrays.asList(mItems));

mListView = (ListView) findViewById(R.id.listView);

setListViewAdapter();

setOnBackClick(toolbar);

setOnTextChanged(toolbar);

setOnAddClick(toolbar);

setOnEditClick(toolbar);

setOnDeleteClick(toolbar);

setOnItemLongClick();

}

private void setOnTextChanged(Toolbar toolbar) {

mTextFilter = (EditText) toolbar.findViewById(R.id.text_filter);

mTextFilter.addTextChangedListener(new TextWatcher() {

@Override

public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {

String str = mTextFilter.getText().toString().trim();

if (str.length() > 0) {

mAdapter.getFilter().filter(str);

if (mAdapter.isEmpty()) {

//showToast("ไม่มีรายการตรงกับที่ระบุ");

}

} else {

setListViewAdapter();

}

@Override

public void beforeTextChanged(CharSequence cs, int i, int i1, int i2) {

}

@Override

public void afterTextChanged(Editable editable) {

}

});

}

private void setOnBackClick(Toolbar toolbar) {

toolbar.findViewById(R.id.image_back)

.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View view) {

setListViewAdapter();

mTextFilter.setText("");

}

});

}

private void setOnAddClick(Toolbar toolbar) {

toolbar.findViewById(R.id.image_add)

.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View view) {

showInputDialog("กำหนดชื่อรายการใหม่", "", ADD);

}

});

}

private void setOnEditClick(Toolbar toolbar) {

toolbar.findViewById(R.id.image_edit)

.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View view) {

int pos = mListView.getCheckedItemPosition();

if (pos < 0) {

showToast("กรุณาเลือกรายการที่จะแก้ไข");

return;

}

showInputDialog("แก้ไขชื่อรายการเป็น...", getCheckedItem(), EDIT);

}

});

}

private void setOnDeleteClick(Toolbar toolbar) {

toolbar.findViewById(R.id.image_delete)

.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View view) {

int pos = mListView.getCheckedItemPosition();

if (pos < 0) {

showToast("กรุณาเลือกรายการที่จะลบ");

return;

}

showConfirmDialog();

}

});

}

private void setOnItemLongClick() {

mListView.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {

@Override

public boolean onItemLongClick(AdapterView<?> adapterView, View view, int i, long l) {

mListView.setItemChecked(i, true);

String item = mListView.getItemAtPosition(i).toString();

showItemDialog(item);

return true;

}

});

}

private void setListViewAdapter() {

mAdapter = new ArrayAdapter<>(getBaseContext(), android.R.layout.simple_list_item_checked, mArrayList);

mListView.setChoiceMode(ListView.CHOICE_MODE_SINGLE);

mListView.setAdapter(mAdapter);

}

private void showToast(String text) {

Toast.makeText(getBaseContext(), text, Toast.LENGTH_SHORT).show();

}

private void showItemDialog(String item) {

FragmentManager fm = getSupportFragmentManager();

final String[] list = {"แก้ไข", "ลบ"};

ItemDialog dialog = ItemDialog.newInstance("จะทำอย่างไรกับรายการ: " + item, list);

dialog.show(fm, null);

dialog.setOnFinishDialogListener(new ItemDialog.OnFinishDialogListener() {

@Override

public void onFinishDialog(int selectedIndex) {

if (selectedIndex < 0) {

return;

}

Toast.makeText(getBaseContext(), "ให้ลองทำเพิ่มเติมเด้วยตนเอง", Toast.LENGTH_SHORT).show();

}

});

}

private void showInputDialog(String msg, String defaultValue, final int type) {

FragmentManager fm = getSupportFragmentManager();

InputDialog dialog = InputDialog.newInstance(msg, defaultValue, InputDialog.DataType.String);

dialog.show(fm, null);

dialog.setOnFinishDialogListener(new InputDialog.OnFinishDialogListener() {

@Override

public void onFinishDialog(String result) {

if (result.trim().isEmpty()) {

return;

}

if (type == ADD) {

mArrayList.add(result);

} else if (type == EDIT) {

String checkedItem = getCheckedItem();

int pos = mArrayList.indexOf(checkedItem);

mArrayList.set(pos, result);

}

mAdapter.notifyDataSetChanged();

reFilter();

}

});

}

private void showConfirmDialog() {

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) {

String checkedItem = getCheckedItem();

mArrayList.remove(checkedItem);

mAdapter.notifyDataSetChanged();

mListView.clearChoices();

reFilter();

}

});

}

private String getCheckedItem() {

int pos = mListView.getCheckedItemPosition();

String item = mListView.getItemAtPosition(pos).toString();

return item;

}

private void reFilter() {

String str = mTextFilter.getText().toString();

if (!str.equals("")) {

mTextFilter.setText("");

mTextFilter.setText(str);

}

@Override

public boolean onCreateOptionsMenu(Menu menu) {

// Inflate the menu; this adds items 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

การจัดการ ListView Item (search, add, edit, remove)