safedispatch-mobile/src/com/safemobile/dispatch_demo/IconContextMenu.java

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Java
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2022-03-10 14:31:03 +00:00
/*
* Copyright (C) 2010 Tani Group
* http://android-demo.blogspot.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 com.safemobile.dispatch_demo;
import java.util.ArrayList;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.res.Resources;
import android.content.res.Resources.Theme;
import android.graphics.drawable.Drawable;
import android.util.TypedValue;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AbsListView;
import android.widget.BaseAdapter;
import android.widget.TextView;
/**
* @author nguyendt
*
*/
public class IconContextMenu implements DialogInterface.OnCancelListener,
DialogInterface.OnDismissListener{
private static final int LIST_PREFERED_HEIGHT = 65;
private IconMenuAdapter menuAdapter = null;
private Activity parentActivity = null;
private int dialogId = 0;
private IconContextMenuOnClickListener clickHandler = null;
/**
* constructor
* @param parent
* @param id
*/
public IconContextMenu(Activity parent, int id) {
this.parentActivity = parent;
this.dialogId = id;
menuAdapter = new IconMenuAdapter(parentActivity);
}
/**
* Add menu item
* @param menuItem
*/
public void addItem(Resources res, CharSequence title,
int imageResourceId, int actionTag) {
menuAdapter.addItem(new IconContextMenuItem(res, title, imageResourceId, actionTag));
}
public void addItem(Resources res, int textResourceId,
int imageResourceId, int actionTag) {
menuAdapter.addItem(new IconContextMenuItem(res, textResourceId, imageResourceId, actionTag));
}
/**
* Set menu onclick listener
* @param listener
*/
public void setOnClickListener(IconContextMenuOnClickListener listener) {
clickHandler = listener;
}
/**
* Create menu
* @return
*/
public Dialog createMenu(String menuItitle) {
final AlertDialog.Builder builder = new AlertDialog.Builder(parentActivity);
builder.setTitle(menuItitle);
builder.setAdapter(menuAdapter, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialoginterface, int i) {
IconContextMenuItem item = (IconContextMenuItem) menuAdapter.getItem(i);
if (clickHandler != null) {
clickHandler.onClick(item.actionTag);
}
}
});
builder.setInverseBackgroundForced(true);
AlertDialog dialog = builder.create();
dialog.setOnCancelListener(this);
dialog.setOnDismissListener(this);
return dialog;
}
public void onCancel(DialogInterface dialog) {
cleanup();
}
public void onDismiss(DialogInterface dialog) {
}
private void cleanup() {
parentActivity.dismissDialog(dialogId);
}
/**
* IconContextMenu On Click Listener interface
*/
public interface IconContextMenuOnClickListener {
public abstract void onClick(int menuId);
}
/**
* Menu-like list adapter with icon
*/
protected class IconMenuAdapter extends BaseAdapter {
private Context context = null;
private ArrayList<IconContextMenuItem> mItems = new ArrayList<IconContextMenuItem>();
public IconMenuAdapter(Context context) {
this.context = context;
}
/**
* add item to adapter
* @param menuItem
*/
public void addItem(IconContextMenuItem menuItem) {
mItems.add(menuItem);
}
@Override
public int getCount() {
return mItems.size();
}
@Override
public Object getItem(int position) {
return mItems.get(position);
}
@Override
public long getItemId(int position) {
IconContextMenuItem item = (IconContextMenuItem) getItem(position);
return item.actionTag;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
IconContextMenuItem item = (IconContextMenuItem) getItem(position);
Resources res = parentActivity.getResources();
if (convertView == null) {
TextView temp = new TextView(context);
AbsListView.LayoutParams param = new AbsListView.LayoutParams(AbsListView.LayoutParams.FILL_PARENT,
AbsListView.LayoutParams.WRAP_CONTENT);
temp.setLayoutParams(param);
temp.setPadding((int)toPixel(res, 15), 0, (int)toPixel(res, 15), 0);
temp.setGravity(android.view.Gravity.CENTER_VERTICAL);
Theme th = context.getTheme();
TypedValue tv = new TypedValue();
if (th.resolveAttribute(android.R.attr.textAppearanceLargeInverse, tv, true)) {
temp.setTextAppearance(context, tv.resourceId);
}
temp.setMinHeight(LIST_PREFERED_HEIGHT);
temp.setCompoundDrawablePadding((int)toPixel(res, 14));
convertView = temp;
}
TextView textView = (TextView) convertView;
textView.setTag(item);
textView.setText(item.text);
textView.setCompoundDrawablesWithIntrinsicBounds(item.image, null, null, null);
return textView;
}
private float toPixel(Resources res, int dip) {
float px = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dip, res.getDisplayMetrics());
return px;
}
}
/**
* menu-like list item with icon
*/
protected class IconContextMenuItem {
public final CharSequence text;
public final Drawable image;
public final int actionTag;
/**
* public constructor
*
* @param res
* resource handler
* @param textResourceId
* id of title in resource
* @param imageResourceId
* id of icon in resource
* @param actionTag
* indicate action of menu item
*/
public IconContextMenuItem(Resources res, int textResourceId,
int imageResourceId, int actionTag) {
text = res.getString(textResourceId);
if (imageResourceId != -1) {
image = res.getDrawable(imageResourceId);
} else {
image = null;
}
this.actionTag = actionTag;
}
/**
* public constructor
* @param res
* resource handler
* @param title
* menu item title
* @param imageResourceId
* id of icon in resource
* @param actionTag
* indicate action of menu item
*/
public IconContextMenuItem(Resources res, CharSequence title,
int imageResourceId, int actionTag) {
text = title;
if (imageResourceId != -1) {
image = res.getDrawable(imageResourceId);
} else {
image = null;
}
this.actionTag = actionTag;
}
}
}