org.droidparts.widget.ClearableEditText Maven / Gradle / Ivy
/**
* Copyright 2014 Alex Yanchenko
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.droidparts.widget;
import static org.droidparts.util.Strings.isNotEmpty;
import org.droidparts.adapter.widget.TextWatcherAdapter;
import org.droidparts.adapter.widget.TextWatcherAdapter.TextWatcherListener;
import android.content.Context;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnFocusChangeListener;
import android.view.View.OnTouchListener;
import android.widget.EditText;
/**
* To change clear icon, set
*
*
* android:drawableRight="@drawable/custom_icon"
*
*/
public class ClearableEditText extends EditText implements OnTouchListener,
OnFocusChangeListener, TextWatcherListener {
public interface Listener {
void didClearText();
}
public void setListener(Listener listener) {
this.listener = listener;
}
private Drawable xD;
private Listener listener;
public ClearableEditText(Context context) {
super(context);
init();
}
public ClearableEditText(Context context, AttributeSet attrs) {
super(context, attrs);
init();
}
public ClearableEditText(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
init();
}
@Override
public void setOnTouchListener(OnTouchListener l) {
this.l = l;
}
@Override
public void setOnFocusChangeListener(OnFocusChangeListener f) {
this.f = f;
}
private OnTouchListener l;
private OnFocusChangeListener f;
@Override
public boolean onTouch(View v, MotionEvent event) {
if (getCompoundDrawables()[2] != null) {
boolean tappedX = event.getX() > (getWidth() - getPaddingRight() - xD
.getIntrinsicWidth());
if (tappedX) {
if (event.getAction() == MotionEvent.ACTION_UP) {
setText("");
if (listener != null) {
listener.didClearText();
}
}
return true;
}
}
if (l != null) {
return l.onTouch(v, event);
}
return false;
}
@Override
public void onFocusChange(View v, boolean hasFocus) {
if (hasFocus) {
setClearIconVisible(isNotEmpty(getText()));
} else {
setClearIconVisible(false);
}
if (f != null) {
f.onFocusChange(v, hasFocus);
}
}
@Override
public void onTextChanged(EditText view, String text) {
if (isFocused()) {
setClearIconVisible(isNotEmpty(text));
}
}
private void init() {
xD = getCompoundDrawables()[2];
if (xD == null) {
xD = getResources()
.getDrawable(android.R.drawable.presence_offline);
}
xD.setBounds(0, 0, xD.getIntrinsicWidth(), xD.getIntrinsicHeight());
setClearIconVisible(false);
super.setOnTouchListener(this);
super.setOnFocusChangeListener(this);
addTextChangedListener(new TextWatcherAdapter(this, this));
}
protected void setClearIconVisible(boolean visible) {
Drawable x = visible ? xD : null;
setCompoundDrawables(getCompoundDrawables()[0],
getCompoundDrawables()[1], x, getCompoundDrawables()[3]);
}
}