package com.ccxt.whl.activity;
import java.util.ArrayList;
import java.util.List;
import android.annotation.TargetApi;
import android.app.Activity;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.Build.VERSION_CODES;
import android.os.Bundle;
import android.provider.MediaStore;
import android.support.v4.app.Fragment;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewTreeObserver;
import android.widget.AbsListView;
import android.widget.AbsListView.LayoutParams;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.RelativeLayout;
import android.widget.TextView;
import android.widget.Toast;
import com.ccxt.whl.BuildConfig;
import com.ccxt.whl.R;
import com.ccxt.whl.domain.VideoEntity;
import com.ccxt.whl.video.util.ImageCache;
import com.ccxt.whl.video.util.ImageResizer;
import com.ccxt.whl.video.util.Utils;
import com.ccxt.whl.widget.RecyclingImageView;
import com.easemob.util.DateUtils;
import com.easemob.util.TextFormater;
public class ImageGridFragment extends Fragment implements OnItemClickListener {
private static final String TAG = "ImageGridFragment";
private int mImageThumbSize;
private int mImageThumbSpacing;
private ImageAdapter mAdapter;
private ImageResizer mImageResizer;
List<VideoEntity> mList;
/**
* Empty constructor as per the Fragment documentation
*/
public ImageGridFragment() {
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mImageThumbSize = getResources().getDimensionPixelSize(
R.dimen.image_thumbnail_size);
mImageThumbSpacing = getResources().getDimensionPixelSize(
R.dimen.image_thumbnail_spacing);
mList=new ArrayList<VideoEntity>();
getVideoFile();
mAdapter = new ImageAdapter(getActivity());
ImageCache.ImageCacheParams cacheParams=new ImageCache.ImageCacheParams();
cacheParams.setMemCacheSizePercent(0.25f); // Set memory cache to 25% of
// app memory
// The ImageFetcher takes care of loading images into our ImageView
// children asynchronously
mImageResizer = new ImageResizer(getActivity(), mImageThumbSize);
mImageResizer.setLoadingImage(R.drawable.empty_photo);
mImageResizer.addImageCache(getActivity().getSupportFragmentManager(),
cacheParams);
}
@Override
public View onCreateView(LayoutInflater inflater,
ViewGroup container, Bundle savedInstanceState) {
final View v = inflater.inflate(R.layout.image_grid_fragment,
container, false);
final GridView mGridView = (GridView) v.findViewById(R.id.gridView);
mGridView.setAdapter(mAdapter);
mGridView.setOnItemClickListener(this);
mGridView.setOnScrollListener(new AbsListView.OnScrollListener() {
@Override
public void onScrollStateChanged(AbsListView absListView,
int scrollState) {
// Pause fetcher to ensure smoother scrolling when flinging
if (scrollState == AbsListView.OnScrollListener.SCROLL_STATE_FLING) {
// Before Honeycomb pause image loading on scroll to help
// with performance
if (!Utils.hasHoneycomb()) {
mImageResizer.setPauseWork(true);
}
} else {
mImageResizer.setPauseWork(false);
}
}
@Override
public void onScroll(AbsListView absListView, int firstVisibleItem,
int visibleItemCount, int totalItemCount) {
}
});
// This listener is used to get the final width of the GridView and then
// calculate the
// number of columns and the width of each column. The width of each
// column is variable
// as the GridView has stretchMode=columnWidth. The column width is used
// to set the height
// of each view so we get nice square thumbnails.
mGridView.getViewTreeObserver().addOnGlobalLayoutListener(
new ViewTreeObserver.OnGlobalLayoutListener() {
@TargetApi(VERSION_CODES.JELLY_BEAN)
@Override
public void onGlobalLayout() {
final int numColumns = (int) Math.floor(mGridView
.getWidth()
/ (mImageThumbSize + mImageThumbSpacing));
if (numColumns > 0) {
final int columnWidth = (mGridView.getWidth() / numColumns)
- mImageThumbSpacing;
mAdapter.setItemHeight(columnWidth);
if (BuildConfig.DEBUG) {
Log.d(TAG,
"onCreateView - numColumns set to "
+ numColumns);
}
if (Utils.hasJellyBean()) {
mGridView.getViewTreeObserver()
.removeOnGlobalLayoutListener(this);
} else {
mGridView.getViewTreeObserver()
.removeGlobalOnLayoutListener(this);
}
}
}
});
return v;
}
@Override
public void onResume() {
super.onResume();
mImageResizer.setExitTasksEarly(false);
mAdapter.notifyDataSetChanged();
}
@Override
public void onDestroy() {
super.onDestroy();
mImageResizer.closeCache();
mImageResizer.clearCache();
}
@Override
public void onItemClick(AdapterView<?> parent, View v, final int position, long id) {
mImageResizer.setPauseWork(true);
if(position==0)
{
Intent intent=new Intent();
intent.setClass(getActivity(), RecorderVideoActivity.class);
startActivityForResult(intent, 100);
}else{
VideoEntity vEntty=mList.get(position-1);
// 限制大小不能超过10M
if (vEntty.size > 1024 * 1024 * 10) {
Toast.makeText(getActivity(), "暂不支持大于10M的视频！", Toast.LENGTH_SHORT).show();
return;
}
Intent intent=getActivity().getIntent().putExtra("path", vEntty.filePath).putExtra("dur", vEntty.duration);
getActivity().setResult(Activity.RESULT_OK, intent);
getActivity().finish();
}
}
private class ImageAdapter extends BaseAdapter {
private final Context mContext;
private int mItemHeight = 0;
private RelativeLayout.LayoutParams mImageViewLayoutParams;
public ImageAdapter(Context context) {
super();
mContext = context;
mImageViewLayoutParams = new RelativeLayout.LayoutParams(
LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
}
@Override
public int getCount() {
return mList.size()+1;
}
@Override
public Object getItem(int position) {
return (position==0)?null:mList.get(position-1);
}
@Override
public long getItemId(int position) {
return position ;
}
@Override
public View getView(int position, View convertView, ViewGroup container) {
ViewHolder holder=null;
if(convertView==null)
{
holder=new ViewHolder();
convertView=LayoutInflater.from(mContext).inflate(R.layout.choose_griditem, container,false);
holder.imageView=(RecyclingImageView) convertView.findViewById(R.id.imageView);
holder.icon=(ImageView) convertView.findViewById(R.id.video_icon);
holder.tvDur=(TextView)convertView.findViewById(R.id.chatting_length_iv);
holder.tvSize=(TextView)convertView.findViewById(R.id.chatting_size_iv);
holder.imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
holder.imageView.setLayoutParams(mImageViewLayoutParams);
convertView.setTag(holder);
}else{
holder=(ViewHolder) convertView.getTag();
}
// Check the height matches our calculated column width
if (holder.imageView.getLayoutParams().height != mItemHeight) {
holder.imageView.setLayoutParams(mImageViewLayoutParams);
}
// Finally load the image asynchronously into the ImageView, this
// also takes care of
// setting a placeholder image while the background thread runs
if(position==0)
{
holder.icon.setVisibility(View.GONE);
holder.tvDur.setVisibility(View.GONE);
holder.tvSize.setText("拍摄录像");
holder.imageView.setImageResource(R.drawable.actionbar_camera_icon);
}else{
holder.icon.setVisibility(View.VISIBLE);
VideoEntity entty=mList.get(position-1);
holder.tvDur.setVisibility(View.VISIBLE);
holder.tvDur.setText(DateUtils.toTime(entty.duration));
holder.tvSize.setText(TextFormater.getDataSize(entty.size));
holder.imageView.setImageResource(R.drawable.empty_photo);
mImageResizer.loadImage(entty.filePath, holder.imageView);
}
return convertView;
// END_INCLUDE(load_gridview_item)
}
/**
* Sets the item height. Useful for when we know the column width so the
* height can be set to match.
*
* @param height
*/
public void setItemHeight(int height) {
if (height == mItemHeight) {
return;
}
mItemHeight = height;
mImageViewLayoutParams = new RelativeLayout.LayoutParams(
LayoutParams.MATCH_PARENT, mItemHeight);
mImageResizer.setImageSize(height);
notifyDataSetChanged();
}
class ViewHolder{
RecyclingImageView imageView;
ImageView icon;
TextView tvDur;
TextView tvSize;
}
}
private void getVideoFile()
{
ContentResolver mContentResolver=getActivity().getContentResolver();
Cursor cursor=mContentResolver.query(MediaStore.Video.Media.EXTERNAL_CONTENT_URI, null, null, null,MediaStore.Video.DEFAULT_SORT_ORDER);
if (cursor.moveToFirst()) {
do {
// ID:MediaStore.Audio.Media._ID
int id = cursor.getInt(cursor
.getColumnIndexOrThrow(MediaStore.Video.Media._ID));
// 名称：MediaStore.Audio.Media.TITLE
String title = cursor.getString(cursor
.getColumnIndexOrThrow(MediaStore.Video.Media.TITLE));
// 路径：MediaStore.Audio.Media.DATA
String url = cursor.getString(cursor
.getColumnIndexOrThrow(MediaStore.Video.Media.DATA));
// 总播放时长：MediaStore.Audio.Media.DURATION
int duration = cursor
.getInt(cursor
.getColumnIndexOrThrow(MediaStore.Video.Media.DURATION));
// 大小：MediaStore.Audio.Media.SIZE
int size = (int) cursor.getLong(cursor
.getColumnIndexOrThrow(MediaStore.Video.Media.SIZE));
VideoEntity entty = new VideoEntity();
entty.ID = id;
entty.title = title;
entty.filePath = url;
entty.duration = duration;
entty.size = size;
mList.add(entty);
} while (cursor.moveToNext());
}
if (cursor != null) {
cursor.close();
cursor = null;
}
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if(resultCode==Activity.RESULT_OK)
{
if(requestCode==100)
{
Uri uri=data.getParcelableExtra("uri");
String[] projects = new String[] { MediaStore.Video.Media.DATA,
MediaStore.Video.Media.DURATION };
Cursor cursor = getActivity().getContentResolver().query(
uri, projects, null,
null, null);
int duration=0;
String filePath=null;
if (cursor.moveToFirst()) {
// 路径：MediaStore.Audio.Media.DATA
filePath = cursor.getString(cursor
.getColumnIndexOrThrow(MediaStore.Video.Media.DATA));
// 总播放时长：MediaStore.Audio.Media.DURATION
duration = cursor
.getInt(cursor
.getColumnIndexOrThrow(MediaStore.Video.Media.DURATION));
Log.d("log","duration:"+duration);
}
if(cursor!=null)
{
cursor.close();
cursor=null;
}
getActivity().setResult(Activity.RESULT_OK, getActivity().getIntent().putExtra("path", filePath).putExtra("dur", duration));
getActivity().finish();
}
}
}
}