/*
* Copyright (C) 2007 The Android Open Source Project
*
* 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 cn.edu.tsinghua.hpc.tmms.ui;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.os.Bundle;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.TextView;
import cn.edu.tsinghua.hpc.tmms.R;
import com.android.internal.widget.NumberPicker;
/**
* A dialog that prompts the user for the message deletion limits.
*/
public class NumberPickerDialog extends AlertDialog implements OnClickListener {
private int mInitialNumber;
private static final String NUMBER = "number";
/**
* The callback interface used to indicate the user is done filling in
* the time (they clicked on the 'Set' button).
*/
public interface OnNumberSetListener {
/**
* @param number The number that was set.
*/
void onNumberSet(int number);
}
private final NonWrapNumberPicker mNumberPicker;
private final OnNumberSetListener mCallback;
/**
* @param context Parent.
* @param callBack How parent is notified.
* @param number The initial number.
*/
public NumberPickerDialog(Context context,
OnNumberSetListener callBack,
int number,
int rangeMin,
int rangeMax,
int title,
int text) {
this(context, com.android.internal.R.style.Theme_Dialog_Alert,
callBack, number, rangeMin, rangeMax, title, text);
}
/**
* @param context Parent.
* @param theme the theme to apply to this dialog
* @param callBack How parent is notified.
* @param number The initial number.
*/
public NumberPickerDialog(Context context,
int theme,
OnNumberSetListener callBack,
int number,
int rangeMin,
int rangeMax,
int title,
int text) {
super(context, theme);
mCallback = callBack;
mInitialNumber = number;
setTitle(title);
setButton(context.getText(R.string.set), this);
setButton2(context.getText(R.string.no), (OnClickListener) null);
LayoutInflater inflater =
(LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View view = inflater.inflate(R.layout.number_picker, null);
TextView tv = (TextView)view.findViewById(R.id.num_pick_text);
tv.setText(text);
setView(view);
mNumberPicker = (NonWrapNumberPicker) view.findViewById(R.id.number_picker);
// initialize state
mNumberPicker.setRange(rangeMin, rangeMax);
mNumberPicker.setCurrent(number);
mNumberPicker.setSpeed(150); // make the repeat rate twice as fast as normal since the
// range is so large.
}
public void onClick(DialogInterface dialog, int which) {
if (mCallback != null) {
mNumberPicker.clearFocus();
mCallback.onNumberSet(mNumberPicker.getCurrent());
}
}
@Override
public Bundle onSaveInstanceState() {
Bundle state = super.onSaveInstanceState();
state.putInt(NUMBER, mNumberPicker.getCurrent());
return state;
}
@Override
public void onRestoreInstanceState(Bundle savedInstanceState) {
super.onRestoreInstanceState(savedInstanceState);
int number = savedInstanceState.getInt(NUMBER);
mNumberPicker.setCurrent(number);
}
public static class NonWrapNumberPicker extends NumberPicker {
public NonWrapNumberPicker(Context context) {
this(context, null);
}
public NonWrapNumberPicker(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
@SuppressWarnings({"UnusedDeclaration"})
public NonWrapNumberPicker(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs);
}
@Override
protected void changeCurrent(int current) {
// Don't wrap. Pin instead.
if (current > mEnd) {
current = mEnd;
} else if (current < mStart) {
current = mStart;
}
super.changeCurrent(current);
}
}
}