package cn.qqtheme.framework.adapter;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Color;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.view.Gravity;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AbsListView;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import java.io.File;
import java.util.ArrayList;
import cn.qqtheme.framework.drawable.StateColorDrawable;
import cn.qqtheme.framework.entity.FileItem;
import cn.qqtheme.framework.icons.FilePickerIcon;
import cn.qqtheme.framework.util.CompatUtils;
import cn.qqtheme.framework.util.ConvertUtils;
import cn.qqtheme.framework.util.FileUtils;
import cn.qqtheme.framework.util.LogUtils;
/**
* 文件目录数据适配
*
* @author 李玉江[QQ:1032694760]
* @see cn.qqtheme.framework.picker.FilePicker
* @since 2014-05-23 18:02
*/
public class FileAdapter extends BaseAdapter {
public static final String DIR_ROOT = ".";
public static final String DIR_PARENT = "..";
private ArrayList<FileItem> data = new ArrayList<FileItem>();
private String rootPath = null;
private String currentPath = null;
private String[] allowExtensions = null;//允许的扩展名
private boolean onlyListDir = false;//是否仅仅读取目录
private boolean showHomeDir = false;//是否显示返回主目录
private boolean showUpDir = true;//是否显示返回上一级
private boolean showHideDir = true;//是否显示隐藏的目录（以“.”开头）
private int itemHeight = 40;// dp
private Drawable homeIcon = null;
private Drawable upIcon = null;
private Drawable folderIcon = null;
private Drawable fileIcon = null;
public FileAdapter() {
homeIcon = ConvertUtils.toDrawable(FilePickerIcon.getHOME());
upIcon = ConvertUtils.toDrawable(FilePickerIcon.getUPDIR());
folderIcon = ConvertUtils.toDrawable(FilePickerIcon.getFOLDER());
fileIcon = ConvertUtils.toDrawable(FilePickerIcon.getFILE());
}
public String getCurrentPath() {
return currentPath;
}
/**
* 允许的扩展名
*/
public void setAllowExtensions(String[] allowExtensions) {
this.allowExtensions = allowExtensions;
}
/**
* 是否仅仅读取目录
*/
public void setOnlyListDir(boolean onlyListDir) {
this.onlyListDir = onlyListDir;
}
public boolean isOnlyListDir() {
return onlyListDir;
}
/**
* 是否显示返回主目录
*/
public void setShowHomeDir(boolean showHomeDir) {
this.showHomeDir = showHomeDir;
}
public boolean isShowHomeDir() {
return showHomeDir;
}
/**
* 是否显示返回上一级
*/
public void setShowUpDir(boolean showUpDir) {
this.showUpDir = showUpDir;
}
public boolean isShowUpDir() {
return showUpDir;
}
/**
* 是否显示隐藏的目录（以“.”开头）
*/
public void setShowHideDir(boolean showHideDir) {
this.showHideDir = showHideDir;
}
public boolean isShowHideDir() {
return showHideDir;
}
public void setItemHeight(int itemHeight) {
this.itemHeight = itemHeight;
}
public void loadData(String path) {
if (path == null) {
LogUtils.warn("current directory is null");
return;
}
ArrayList<FileItem> datas = new ArrayList<FileItem>();
if (rootPath == null) {
rootPath = path;
}
LogUtils.verbose("current directory path: " + path);
currentPath = path;
if (showHomeDir) {
//添加“返回主目录”
FileItem fileRoot = new FileItem();
fileRoot.setDirectory(true);
fileRoot.setIcon(homeIcon);
fileRoot.setName(DIR_ROOT);
fileRoot.setSize(0);
fileRoot.setPath(rootPath);
datas.add(fileRoot);
}
if (showUpDir && !path.equals("/")) {
//添加“返回上一级目录”
FileItem fileParent = new FileItem();
fileParent.setDirectory(true);
fileParent.setIcon(upIcon);
fileParent.setName(DIR_PARENT);
fileParent.setSize(0);
fileParent.setPath(new File(path).getParent());
datas.add(fileParent);
}
File[] files;
if (allowExtensions == null) {
if (onlyListDir) {
files = FileUtils.listDirs(currentPath);
} else {
files = FileUtils.listDirsAndFiles(currentPath);
}
} else {
if (onlyListDir) {
files = FileUtils.listDirs(currentPath, allowExtensions);
} else {
files = FileUtils.listDirsAndFiles(currentPath, allowExtensions);
}
}
if (files != null) {
for (File file : files) {
if (!showHideDir && file.getName().startsWith(".")) {
continue;
}
FileItem fileItem = new FileItem();
boolean isDirectory = file.isDirectory();
fileItem.setDirectory(isDirectory);
if (isDirectory) {
fileItem.setIcon(folderIcon);
fileItem.setSize(0);
} else {
fileItem.setIcon(fileIcon);
fileItem.setSize(file.length());
}
fileItem.setName(file.getName());
fileItem.setPath(file.getAbsolutePath());
datas.add(fileItem);
}
}
data.clear();
data.addAll(datas);
notifyDataSetChanged();
}
public void recycleData() {
data.clear();
if (homeIcon instanceof BitmapDrawable) {
Bitmap homeBitmap = ((BitmapDrawable) homeIcon).getBitmap();
if (null != homeBitmap && !homeBitmap.isRecycled()) {
homeBitmap.recycle();
}
}
if (upIcon instanceof BitmapDrawable) {
Bitmap upBitmap = ((BitmapDrawable) upIcon).getBitmap();
if (null != upBitmap && !upBitmap.isRecycled()) {
upBitmap.recycle();
}
}
if (folderIcon instanceof BitmapDrawable) {
Bitmap folderBitmap = ((BitmapDrawable) folderIcon).getBitmap();
if (null != folderBitmap && !folderBitmap.isRecycled()) {
folderBitmap.recycle();
}
}
if (fileIcon instanceof BitmapDrawable) {
Bitmap fileBitmap = ((BitmapDrawable) fileIcon).getBitmap();
if (null != fileBitmap && !fileBitmap.isRecycled()) {
fileBitmap.recycle();
}
}
}
@Override
public int getCount() {
return data.size();
}
@Override
public FileItem getItem(int position) {
return data.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
Context context = parent.getContext();
ViewHolder holder;
if (convertView == null) {
LinearLayout layout = new LinearLayout(context);
CompatUtils.setBackground(layout, new StateColorDrawable(Color.WHITE, Color.LTGRAY));
layout.setOrientation(LinearLayout.HORIZONTAL);
layout.setGravity(Gravity.CENTER_VERTICAL);
int height = ConvertUtils.toPx(context, itemHeight);
int matchParent = ViewGroup.LayoutParams.MATCH_PARENT;
// fixed: 17-1-8 #79 安卓4.x兼容问题，java.lang.ClassCastException……onMeasure……
if (parent instanceof AbsListView) {
layout.setLayoutParams(new AbsListView.LayoutParams(matchParent, height));
} else {
layout.setLayoutParams(new ViewGroup.LayoutParams(matchParent, height));
}
int padding = ConvertUtils.toPx(context, 5);
layout.setPadding(padding, padding, padding, padding);
ImageView imageView = new ImageView(context);
int wh = ConvertUtils.toPx(context, 30);
imageView.setLayoutParams(new LinearLayout.LayoutParams(wh, wh));
imageView.setImageResource(android.R.drawable.ic_menu_report_image);
layout.addView(imageView);
TextView textView = new TextView(context);
LinearLayout.LayoutParams tvParams = new LinearLayout.LayoutParams(matchParent, matchParent);
tvParams.leftMargin = ConvertUtils.toPx(context, 10);
textView.setLayoutParams(tvParams);
textView.setGravity(Gravity.START | Gravity.CENTER_VERTICAL);
textView.setSingleLine();
layout.addView(textView);
convertView = layout;
holder = new ViewHolder();
holder.imageView = imageView;
holder.textView = textView;
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
FileItem item = data.get(position);
holder.imageView.setImageDrawable(item.getIcon());
holder.textView.setText(item.getName());
return convertView;
}
private static class ViewHolder {
ImageView imageView;
TextView textView;
}
}