/*
* Copyright 2012 Kevin Sawicki <kevinsawicki@gmail.com>
*
* 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 fr.pagesjaunes.mdm.wishlist;
import android.text.TextUtils;
import android.text.format.DateUtils;
import android.view.View;
import android.widget.CompoundButton;
import android.widget.ImageView;
import android.widget.TextView;
import java.text.NumberFormat;
/**
* Updater for child views indexed from a root view
*/
public class ViewUpdater {
/**
* Number formatter for integers
*/
public static final NumberFormat FORMAT_INT = NumberFormat
.getIntegerInstance();
/**
* Root view currently being updated
*/
public View view;
/**
* Child views currently being updated
*/
public View[] childViews;
/**
* Initialize view by binding indexed child views to tags on the root view
* <p>
* Sub-classes may override this method but must call super
*
* @param view
* @param children
* @return view
*/
public View initialize(final View view, final int[] children) {
final View[] views = new View[children.length];
for (int i = 0; i < children.length; i++)
views[i] = view.findViewById(children[i]);
view.setTag(views);
this.view = view;
childViews = views;
return view;
}
/**
* Set current view that is currently being updated
*
* @param view
*/
public void setCurrentView(final View view) {
this.view = view;
childViews = getChildren(view);
}
/**
* Get indexed children
*
* @param parentView
* @return children
*/
public View[] getChildren(final View parentView) {
return (View[]) parentView.getTag();
}
/**
* Get text view at given index
*
* @param childViewIndex
* @return text view
*/
public TextView textView(final int childViewIndex) {
return (TextView) childViews[childViewIndex];
}
/**
* Get text view at given index
*
* @param parentView
* @param childViewIndex
* @return text view
*/
public TextView textView(final View parentView, final int childViewIndex) {
return (TextView) getChildren(parentView)[childViewIndex];
}
/**
* Get image view at given index
*
* @param childViewIndex
* @return image view
*/
public ImageView imageView(final int childViewIndex) {
return (ImageView) childViews[childViewIndex];
}
/**
* Get image view at given index
*
* @param parentView
* @param childViewIndex
* @return image view
*/
public ImageView imageView(final View parentView, final int childViewIndex) {
return (ImageView) getChildren(parentView)[childViewIndex];
}
/**
* Get view at given index
*
* @param childViewIndex
* @return view
*/
@SuppressWarnings("unchecked")
public <V extends View> V view(final int childViewIndex) {
return (V) childViews[childViewIndex];
}
/**
* Get view at given index
*
* @param parentView
* @param childViewIndex
* @return view
*/
@SuppressWarnings("unchecked")
public <V extends View> V view(final View parentView,
final int childViewIndex) {
return (V) getChildren(parentView)[childViewIndex];
}
/**
* Set text on text view at given index
*
* @param childViewIndex
* @param text
* @return text view
*/
public TextView setText(final int childViewIndex, final CharSequence text) {
final TextView textView = textView(childViewIndex);
textView.setText(text);
return textView;
}
/**
* Set text on text view at given index
*
* @param parentView
* @param childViewIndex
* @param text
* @return text view
*/
public TextView setText(final View parentView, final int childViewIndex,
final CharSequence text) {
final TextView textView = textView(parentView, childViewIndex);
textView.setText(text);
return textView;
}
/**
* Set text on text view at index to string resource
*
* @param childViewIndex
* @param resourceId
* @return text view
*/
public TextView setText(final int childViewIndex, final int resourceId) {
final TextView textView = textView(childViewIndex);
textView.setText(resourceId);
return textView;
}
/**
* Set text on text view at index to string resource
*
* @param parentView
* @param childViewIndex
* @param resourceId
* @return text view
*/
public TextView setText(final View parentView, final int childViewIndex,
final int resourceId) {
final TextView textView = textView(parentView, childViewIndex);
textView.setText(resourceId);
return textView;
}
/**
* Set text on text view to be formatted version of given integer number
* <p>
* This method uses the formatter returned from
* {@link NumberFormat#getIntegerInstance()}
*
* @param childViewIndex
* @param number
* @return text view
*/
public TextView setNumber(final int childViewIndex, final long number) {
final TextView textView = textView(childViewIndex);
textView.setText(FORMAT_INT.format(number));
return textView;
}
/**
* Set text on text view to be formatted version of given integer number
* <p>
* This method uses the formatter returned from
* {@link NumberFormat#getIntegerInstance()}
*
* @param parentView
* @param childViewIndex
* @param number
* @return text view
*/
public TextView setNumber(final View parentView, final int childViewIndex,
final long number) {
final TextView textView = textView(parentView, childViewIndex);
textView.setText(FORMAT_INT.format(number));
return textView;
}
/**
* Get child view
*
* @param childViewIndex
* @param childViewClass
* @return child view
*/
@SuppressWarnings("unchecked")
public <T> T getView(final int childViewIndex,
final Class<T> childViewClass) {
return (T) childViews[childViewIndex];
}
/**
* Get child view
*
* @param parentView
* @param childViewIndex
* @param childViewClass
* @return child view
*/
@SuppressWarnings("unchecked")
public <T> T getView(final View parentView, final int childViewIndex,
final Class<T> childViewClass) {
return (T) getChildren(parentView)[childViewIndex];
}
/**
* Set child view as gone or visible
*
* @param childViewIndex
* @param gone
* @return child view
*/
public View setGone(final int childViewIndex, boolean gone) {
return ViewUtils.setGone(view(childViewIndex), gone);
}
/**
* Set child view as gone or visible
*
* @param parentView
* @param childViewIndex
* @param gone
* @return child view
*/
public View setGone(final View parentView, final int childViewIndex,
boolean gone) {
return ViewUtils.setGone(view(parentView, childViewIndex), gone);
}
/**
* Set the checked state of the {@link CompoundButton} with at index
*
* @param childViewIndex
* @param checked
* @return check box
*/
public CompoundButton setChecked(final int childViewIndex,
final boolean checked) {
final CompoundButton button = view(childViewIndex);
button.setChecked(checked);
return button;
}
/**
* Set the checked state of the {@link CompoundButton} with at index
*
* @param parentView
* @param childViewIndex
* @param checked
* @return check box
*/
public CompoundButton setChecked(final View parentView,
final int childViewIndex, final boolean checked) {
final CompoundButton button = view(parentView, childViewIndex);
button.setChecked(checked);
return button;
}
/**
* Set the text on the text view if it is non-empty and make the view gone if
* it is empty
*
* @param childViewIndex
* @param text
* @return text view
*/
public TextView setVisibleText(final int childViewIndex,
final CharSequence text) {
TextView view = textView(childViewIndex);
view.setText(text);
ViewUtils.setGone(view, TextUtils.isEmpty(text));
return view;
}
/**
* Set the text on the text view if it is non-empty and make the view gone if
* it is empty
*
* @param parentView
*
* @param childViewIndex
* @param text
* @return text view
*/
public TextView setVisibleText(final View parentView,
final int childViewIndex, final CharSequence text) {
TextView view = textView(parentView, childViewIndex);
view.setText(text);
ViewUtils.setGone(view, TextUtils.isEmpty(text));
return view;
}
private CharSequence formatRelativeTimeSpan(final long time) {
return DateUtils.getRelativeTimeSpanString(time);
}
/**
* Set relative time span on text view
*
* @param childViewIndex
* @param time
* @return text view
*/
public TextView setRelativeTimeSpan(final int childViewIndex, final long time) {
return setText(childViewIndex, formatRelativeTimeSpan(time));
}
/**
* Set relative time span on text view
*
* @param parentView
* @param childViewIndex
* @param time
* @return text view
*/
public TextView setRelativeTimeSpan(final View parentView,
final int childViewIndex, final long time) {
return setText(parentView, childViewIndex, formatRelativeTimeSpan(time));
}
}