/*
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* FileName: BaseArrayListAdapter.java
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* Copyright (C) 2014 Plusub Tech. Co. Ltd. All Rights Reserved <admin@plusub.com>
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*
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* Licensed under the Plusub License, Version 1.0 (the "License");
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* author : quhao <blakequ@gmail.com>
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* date : 2014-6-7 下午9:50:52
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* last modify author :
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* version : 1.0
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*/
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package com.shlb.comb.adapter;
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import android.content.Context;
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import android.util.DisplayMetrics;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import android.view.WindowManager;
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import android.widget.BaseAdapter;
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import java.util.ArrayList;
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import java.util.List;
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/**
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* 数组适配器，只需要实现 {@link #getView(int, View, ViewGroup)}
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* @author blakequ Blakequ@gmail.com
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*
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* @param <T>
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*/
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public abstract class BaseArrayListAdapter<T> extends BaseAdapter {
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protected Context mContext;
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protected LayoutInflater mInflater;
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private List<T> mDatas;
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/**屏幕的宽度*/
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protected int mScreenWidth;
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/**屏幕高度*/
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protected int mScreenHeight;
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/**屏幕密度*/
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protected float mDensity;
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public BaseArrayListAdapter(Context context){
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mContext = context;
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mInflater = LayoutInflater.from(context);
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mDatas = new ArrayList<T>();
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DisplayMetrics metric = new DisplayMetrics();
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WindowManager wm = (WindowManager)context.getSystemService(Context.WINDOW_SERVICE);
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wm.getDefaultDisplay().getMetrics(metric);
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mScreenWidth = metric.widthPixels;
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mScreenHeight = metric.heightPixels;
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mDensity = metric.density;
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}
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public BaseArrayListAdapter(Context context, List<T> datas){
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mContext = context;
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mInflater = LayoutInflater.from(context);
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if (datas != null && datas.size() > 0) {
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mDatas = datas;
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}else{
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mDatas = new ArrayList<T>();
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}
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}
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/**
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* get context
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* <p>Title: getContext
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* <p>Description:
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* @return
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*/
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public Context getContext() {
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return mContext;
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}
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public LayoutInflater getInflater() {
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return mInflater;
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}
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/**
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* get screen width
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* <p>Title: getScreenWidth
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* <p>Description:
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* @return
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*/
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public int getScreenWidth() {
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return mScreenWidth;
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}
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/**
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* get screen height
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* <p>Title: getScreenHeight
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* <p>Description:
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* @return
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*/
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public int getScreenHeight() {
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return mScreenHeight;
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}
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/**
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* return all data
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* <p>Title: getAllData
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* <p>Description:
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* @return
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*/
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public List<T> getAllData(){
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return mDatas;
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}
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/**
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* add data to head
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* <p>Title: addHead
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* <p>Description:
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* @param datas
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*/
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public void addHead(T datas){
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if (datas != null) {
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mDatas.add(0, datas);
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notifyDataSetChanged();
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}
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}
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/**
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* add data list to head
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* <p>Title: addHead
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* <p>Description:
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* @param datas
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*/
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public void addHead(List<T> datas){
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if (datas != null) {
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for (int i = 0; i < datas.size(); i++) {
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mDatas.add(i, datas.get(i));
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}
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notifyDataSetChanged();
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}
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}
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public void add(T datas){
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if (datas != null) {
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mDatas.add(datas);
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notifyDataSetChanged();
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}
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}
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public void add(int position, T datas){
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if (position < 0 || position >= mDatas.size() || datas == null) {
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return;
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}
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mDatas.add(position, datas);
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notifyDataSetChanged();
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}
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/**
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* 更新指定位置数据
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* <p>Title: update
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* <p>Description:
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* @param position
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* @param datas
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*/
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public void update(int position, T datas){
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if (position < 0 || position >= mDatas.size() || datas == null) {
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return;
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}
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mDatas.remove(position);
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mDatas.add(position, datas);
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notifyDataSetChanged();
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}
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/**
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* add data to adapter
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* <p>Title: addAll
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* <p>Description:
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* @param datas
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*/
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public void addAll(List<T> datas){
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if (datas != null) {
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mDatas.addAll(datas);
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notifyDataSetChanged();
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}
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}
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/**
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* refresh data to adapter, history data will be remove
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* <p>Title: refreshData
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* <p>Description:
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* @param datas
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*/
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public void refreshData(List<T> datas){
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if (datas != null) {
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mDatas.clear();
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mDatas.addAll(datas);
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notifyDataSetChanged();
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}
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}
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/**
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* clear all data
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* <p>Title: clear
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* <p>Description:
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*/
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public void clear(){
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mDatas.clear();
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notifyDataSetChanged();
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}
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/**
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* 删除指定位置数据
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* <p>Title: delete
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* <p>Description:
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* @param position
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*/
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public void delete(int position){
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if (position < 0 || position >= mDatas.size()) {
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return;
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}
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mDatas.remove(position);
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notifyDataSetChanged();
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}
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@Override
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public int getCount() {
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// TODO Auto-generated method stub
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return mDatas.size();
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}
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@Override
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public Object getItem(int position) {
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// TODO Auto-generated method stub
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if (mDatas == null || mDatas.size() <= 0 || position < 0 || position >= mDatas.size()) {
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return null;
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}
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return mDatas.get(position);
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}
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@Override
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public long getItemId(int position) {
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// TODO Auto-generated method stub
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return position;
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}
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}
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