Android Open Source - treedo Item Edit Text

From Project

Back to project page treedo.

License

The source code is released under:

DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE Version 2, December 2004 Everyone is permitted to copy and distribute verbatim or modified copies of this license document, ...

If you think the Android project treedo listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.

Java Source Code

package com.mbonnin.treedo;
/*from ww w  . j a  v  a2  s  . c o  m*/
import android.content.Context;
import android.text.Editable;
import android.text.TextWatcher;
import android.util.AttributeSet;
import android.util.Log;
import android.view.KeyEvent;
import android.view.inputmethod.EditorInfo;
import android.view.inputmethod.InputConnection;
import android.view.inputmethod.InputConnectionWrapper;
import android.widget.EditText;

/**
 * Created by martin on 06/10/14.
 */
public class ItemEditText extends EditText implements TextWatcher {
    private Listener mListener;
    private int mNewLinePosition = -1;

    @Override
    public void onTextChanged(CharSequence s, int start, int count, int after) {
        if (after == 1) {
            char c = s.charAt(start);
            if (c == '\n') {
                mNewLinePosition = start;
            }
        }
    }

    @Override
    public void beforeTextChanged(CharSequence s, int start, int count, int after) {

    }

    @Override
    public void afterTextChanged(Editable s) {
        if (mNewLinePosition != -1) {
            int position = mNewLinePosition;
            mNewLinePosition = -1;
            s.delete(position, position + 1);
            if (mListener != null) {
                mListener.onNewItem(position);
            }
        }

    }

    public interface Listener {
        void onNewItem(int position);
        void onDeleteItem();
    }

    public void setListener(Listener listener) {
        mListener = listener;
    }

    public ItemEditText(Context context) {
        super(context);
        init();
    }

    private void init() {
        addTextChangedListener(this);
    }

    public ItemEditText(Context context, AttributeSet attrs) {
        super(context, attrs);
        init();
    }

    public ItemEditText(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        init();
    }

    @Override
    public InputConnection onCreateInputConnection(EditorInfo outAttrs) {
        return new ItemInputConnection(super.onCreateInputConnection(outAttrs),
                true);
    }

    private class ItemInputConnection extends InputConnectionWrapper {

        public ItemInputConnection(InputConnection target, boolean mutable) {
            super(target, mutable);
        }

        @Override
        public boolean sendKeyEvent(KeyEvent event) {
            Log.d("TAG", "sendKeyEvent");
            if (event.getKeyCode() == KeyEvent.KEYCODE_DEL) {
                if (event.getAction() == KeyEvent.ACTION_DOWN) {
                    if (getSelectionStart() == 0 && getSelectionEnd() == 0) {
                        mListener.onDeleteItem();
                        return false;
                    }
                }
            }

            return super.sendKeyEvent(event);
        }

        @Override
        public boolean deleteSurroundingText(int beforeLength, int afterLength) {
            // magic: in latest Android, deleteSurroundingText(1, 0) will be called for backspace
            if (beforeLength == 1 && afterLength == 0) {
                // backspace
                return sendKeyEvent(new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DEL))
                        && sendKeyEvent(new KeyEvent(KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DEL));
            }

            return super.deleteSurroundingText(beforeLength, afterLength);
        }
    }
}

Java Source Code List