i have used fresco library to load images in the adapter. but the images are not set correctly as i expected. Here is my code. please help me. thanks in advance.
public class HomeListingAdapter_recyler1 extends RecyclerView.Adapter {
private Context context;
private ArrayList propertyItemList;
private ImageLoader mImageLoader;
public HomeListingAdapter_recyler1(HomeListingActivity_recycler propertyViews, ArrayList propertyItemList) {
Fresco.initialize(propertyViews);
this.propertyItemList = propertyItemList;
this.context = propertyViews;
}
#Override
public CustomViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View itemLayoutView = LayoutInflater.from(parent.getContext()).inflate(R.layout.property_item_layout,parent,false);
CustomViewHolder viewHolder = new CustomViewHolder(itemLayoutView);
return viewHolder;
}
#Override
public void onBindViewHolder(final CustomViewHolder holder, final int position) {
mImageLoader = VolleySingletonPattern.getInstance(context).getImageLoader();
holder.txtPropertyName.setText(propertyItemList.get(position).ville);
holder.txtPropertyType.setText(propertyItemList.get(position).bienName);
if(propertyItemList.get(position).pieces.equalsIgnoreCase("0")){
holder.txtPropertySurfaceArea.setText(propertyItemList.get(position).surface+" "+context.getString(R.string.meter_square));
}else{ holder.txtPropertySurfaceArea.setText(propertyItemList.get(position).surface+" "+context.getString(R.string.meter_square)+" - "+ propertyItemList.get(position).pieces+" "+context.getResources().getString(R.string.pieces));
}
holder.txtPropertyPrice.setText(propertyItemList.get(position).montantLoyer);
Uri imageUri;
try {
if(!TextUtils.isNullOrEmpty(propertyItemList.get(position).photo)) {
imageUri = Uri.parse(propertyItemList.get(position).photo);
holder.imgPropertyImage.setVisibility(View.VISIBLE);
holder.imgPropertyImage.setImageURI(imageUri);
}
} catch (Exception e) {
}
}
#Override
public int getItemCount() {
return propertyItemList.size();
}
public class CustomViewHolder extends RecyclerView.ViewHolder {
SimpleDraweeView imgPropertyImage;
public TextView txtPropertyName , txtPropertyType , txtPropertySurfaceArea ,txtPropertyPrice;
public CustomViewHolder(View itemView) {
super(itemView);
imgPropertyImage = (SimpleDraweeView) itemView.findViewById(R.id.image_property);
txtPropertyName = (TextView) itemView.findViewById(R.id.txt_property_name);
txtPropertyType = (TextView) itemView.findViewById(R.id.txt_property_type);
txtPropertySurfaceArea = (TextView) itemView.findViewById(R.id.txt_property_surface_piece);
txtPropertyPrice = (TextView) itemView.findViewById(R.id.txt_property_price);
}
}
}
Your imgPropertyImage should be a SimpleDraweeView, not an ImageView.
Related
I am working to achieve a recycler view interface that looks like this:
Presently, am only using a recyclerview with LinearLayoutManager using an adapter with two viewholders, i tried gridLayout manager too but i did not achieve the target interface: I need help achieving this, Do i have to create a custom Layout Manager? or What exactly do i have to do? Please, I am really stuck on this.
This is my adapter code
public class SimpleStringRecyclerViewAdapter : RecyclerView.Adapter
{
private List<Data> mValues;
private Context context;
private const int TYPE_FULL = 0;
private const int TYPE_HALF = 1;
private const int TYPE_QUARTER = 2;
public SimpleStringRecyclerViewAdapter(Context context, List<Data> items)
{
this.context = context;
mValues = items;
}
public override int ItemCount
{
get
{
return mValues.Count();
}
}
public override void OnBindViewHolder(RecyclerView.ViewHolder holder, int position)
{
if (holder is SimpleViewHolder)
try
{
Data item = mValues.ElementAt(position);
var simpleHolder = holder as SimpleViewHolder;
simpleHolder.mTxtView.Text = Android.Text.Html.FromHtml(item.article.Title).ToString();
simpleHolder.mTxtView2.Text = item.article.Description;
using (var imageView = simpleHolder.mImageView)
{
string url = Android.Text.Html.FromHtml(item.article.UrlToImage).ToString();
//Download and display image
UrlImageViewHelper.SetUrlDrawable(imageView,
url, Resource.Drawable.cheese_1
);
}
// simpleHolder.mprogressbar.Visibility = ViewStates.Gone;
}
catch (Exception e)
{
//Toast.MakeText(this.context, e.ToString(), ToastLength.Long).Show();
}
else
{
try
{
Data item = mValues.ElementAt(position);
var simpleHolder = holder as SimpleViewHolder2;
simpleHolder.mTxtView.Text = Android.Text.Html.FromHtml(item.youTubeItem.Title).ToString();
// simpleHolder.mTxtView2.Text = item.DescriptionShort;
using (var imageView = simpleHolder.mImageView)
{
string url = Android.Text.Html.FromHtml(item.youTubeItem.MaxResThumbnailUrl).ToString();
//Download and display image
UrlImageViewHelper.SetUrlDrawable(imageView,
url, Resource.Drawable.cheese_1
);
}
}
catch (Exception e)
{
//Toast.MakeText(this.context, e.ToString(), ToastLength.Long).Show();
}
}
}
public override int GetItemViewType(int position)
{
if (mValues.ElementAt(position).type == 1)
{
return Resource.Layout.ItemsList;
}
else
{
return Resource.Layout.VideoList;
}
}
public override RecyclerView.ViewHolder OnCreateViewHolder(ViewGroup parent, int viewType)
{
if (viewType == Resource.Layout.ItemsList)
{
View view = LayoutInflater.From(parent.Context).Inflate(Resource.Layout.ItemsList, parent, false);
view.SetBackgroundColor(Color.White);
SimpleViewHolder holder = new SimpleViewHolder(view);
// holder.mprogressbar = view.FindViewById<ProgressBar>(Resource.Id.progressBar);
// holder.mprogressbar.Visibility = ViewStates.Visible;
//Showing loading progressbar
return holder;
}
else
{
View view = LayoutInflater.From(parent.Context).Inflate(Resource.Layout.VideoList, parent, false);
view.SetBackgroundColor(Color.White);
SimpleViewHolder2 holder = new SimpleViewHolder2(view);
return holder;
}
}
}
public class SimpleViewHolder : RecyclerView.ViewHolder
{
public string mBoundString;
public readonly View mView;
public readonly ImageView mImageView;
public readonly TextView mTxtView;
public readonly TextView mTxtView2;
// public ProgressBar mprogressbar;
public SimpleViewHolder(View view) : base(view)
{
mView = view;
mImageView = view.FindViewById<ImageView>(Resource.Id.avatar2);
mTxtView = view.FindViewById<TextView>(Resource.Id.Text11);
mTxtView2 = view.FindViewById<TextView>(Resource.Id.Text12);
// mprogressbar = view.FindViewById<ProgressBar>(Resource.Id.progressBar);
}
public override string ToString()
{
return base.ToString() + " '" + mTxtView.Text;
}
}
public class SimpleViewHolder2 : RecyclerView.ViewHolder
{
public string mBoundString;
public readonly View mView;
public readonly ImageView mImageView;
public readonly TextView mTxtView;
public readonly TextView mTxtView2;
public SimpleViewHolder2(View view) : base(view)
{
mView = view;
mImageView = view.FindViewById<ImageView>(Resource.Id.videoavatar);
mTxtView = view.FindViewById<TextView>(Resource.Id.videoText1);
// mprogressbar = view.FindViewById<ProgressBar>(Resource.Id.progressBar);
}
}
SetUpRecyclerView Method:
dataUse = OfflineDeserializer.OfflineData(content, json2);
recyclerView.SetLayoutManager(new LinearLayoutManager(recyclerView.Context));
recyclerView.SetAdapter(new SimpleStringRecyclerViewAdapter(recyclerView.Context, dataUse));
if (vp.IsShown)
{
vp.Visibility = ViewStates.Invisible;
}
This is what I have presently:
you can use recycler view with multiple view type
here is the link you can refer
Recyclerview with multiple view types
Here is a sample code you can modify it according to your need
public class MyFeedsAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
final int
VIDEO = 1,
IMAGE = 2,
AUDIO = 3;
public MyFeedsAdapter(HomeActivity homeActivity, ArrayList<MyFeedsModel> list, MyFeedsFragment myFeedsFragment) {
this.activity = homeActivity;
this.list = list;
this.myFeedsFragment = myFeedsFragment;
metrics = new DisplayMetrics();
activity.getWindowManager().getDefaultDisplay().getMetrics(metrics);
}
#Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view;
switch (viewType) {
case VIDEO:
view = LayoutInflater.from(parent.getContext()).inflate(R.layout.row_myfeeds, parent, false);
return new ViewForVideo(view);
case IMAGE:
view = LayoutInflater.from(parent.getContext()).inflate(R.layout.row_myfeeds, parent, false);
return new ViewForImage(view);
case AUDIO:
view = LayoutInflater.from(parent.getContext()).inflate(R.layout.row_myfeeds, parent, false);
return new ViewForAudio(view);
default:
return null;
}
}
#Override
public void onBindViewHolder(final RecyclerView.ViewHolder holder, final int position) {
if (list.get(position).getFile_type().equals(IntentString.VIDEO)) {
setViewForVideo((ViewForVideo) holder, position);
} else if (list.get(position).getFile_type().equals(IntentString.IMAGE)) {
setViewForImage((ViewForImage) holder, position);
} else if (list.get(position).getFile_type().equals(IntentString.AUDIO)) {
setViewForAudio((ViewForAudio) holder, position);
}
}
#Override
public int getItemCount() {
return list.size();
}
#Override
public int getItemViewType(int position) {
if (list.get(position).getFile_type().equals(IntentString.VIDEO)) {
return VIDEO;
} else if (list.get(position).getFile_type().equals(IntentString.IMAGE)) {
return IMAGE;
} else if (list.get(position).getFile_type().equals(IntentString.AUDIO)) {
return AUDIO;
} else {
return 0;
}
}
public void setViewForVideo(final ViewForVideo holder, final int position) {
}
public void setViewForImage(final ViewForImage holder, final int position) {
}
public void setViewForAudio(final ViewForAudio holder, int position) {
}
public class ViewForVideo extends RecyclerView.ViewHolder {
public ViewForVideo(View itemView) {
super(itemView);
}
}
public class ViewForImage extends RecyclerView.ViewHolder {
public ViewForImage(View itemView) {
super(itemView);
ButterKnife.bind(this, itemView);
}
}
public class ViewForAudio extends RecyclerView.ViewHolder {
public ViewForAudio(View itemView) {
super(itemView);
ButterKnife.bind(this, itemView);
}
}
}
I'm trying to use custom adapter with RecyclerView, but the holders are empty. I can't understand what did i miss. Please help.
In MainActivity's AsyncTask:
#Override
protected void onPostExecute(String result) {
json_result = result;
super.onPostExecute(result);
dialog.dismiss();
if (result == null) {
Toast.makeText(MainActivity.this, "error getting results...", Toast.LENGTH_LONG).show();
} else {
try {
JSONObject json = new JSONObject(result);
Log.e(TAG, "create json object");
JSONArray searchArray = json.getJSONArray("Search");
Log.e(TAG, "Search");
for (int i = 0; i < searchArray.length(); i++) {
Log.e(TAG, "run on length");
JSONObject searchObject = searchArray.getJSONObject(i);
Log.e(TAG, "create search object");
String title = searchObject.getString("Title");
Log.e(TAG, "Title" + title);
String type = searchObject.getString("Type");
Log.e(TAG, "Type" + type);
String year = searchObject.getString("Year");
Log.e(TAG, "Year" + year);
String imdbID = searchObject.getString("imdbID");
String poster = searchObject.getString("Poster");
Log.e(TAG, "" + result);
movieList.add(new Movie(title, type, year, imdbID, poster));
Log.e(TAG, "Add to adapter");
}
} catch (JSONException e) {
e.printStackTrace();
Toast.makeText(MainActivity.this, "error parsing results...", Toast.LENGTH_LONG).show();
}
adapter.notifyDataSetChanged();
Log.e(TAG, "Notify");
}
}
Custom Adapter:
public class Adapter extends
RecyclerView.Adapter<Adapter.ViewHolder> {
private LruCache<String, Bitmap> bitmapCache;
Context context;
public static class ViewHolder extends RecyclerView.ViewHolder {
public TextView title;
public TextView year;
public TextView type;
public ImageView poster;
public ViewHolder(View itemView) {
super(itemView);
title = (TextView) itemView.findViewById(R.id.txt_title);
year = (TextView) itemView.findViewById(R.id.txt_year);
type = (TextView) itemView.findViewById(R.id.txt_rating);
poster = (ImageView) itemView.findViewById(R.id.imageView);
}
}
private List<Movie> mList;
public Adapter(List<Movie> mList) {
this.mList = mList;
int numImages = 4 * 1024 * 1024;
this.bitmapCache = new LruCache<String, Bitmap>(numImages) {
#Override
protected int sizeOf(String key, Bitmap value) {
// this is how to calculate a bitmap size in bytes.
// (bytes-in-a-row * height)
return value.getRowBytes() * value.getHeight();
}
};
}
#Override
public Adapter.ViewHolder onCreateViewHolder
(ViewGroup parent, int viewType) {
Context context = parent.getContext();
LayoutInflater inflater = LayoutInflater.from(context);
View movieView = inflater.inflate(R.layout.card_view, parent, false);
ViewHolder viewHolder = new ViewHolder(movieView);
return viewHolder;
}
#Override
public void onBindViewHolder
(Adapter.ViewHolder holder, int position) {
Movie movie = mList.get(position);
holder.title.setText(movie.getTitle());
holder.year.setText(movie.getYear());
holder.type.setText(movie.getType());
holder.poster.setVisibility(View.INVISIBLE);
GetImageTask task = new GetImageTask(movie, holder);
task.execute(movie.getPoster_url());
}
#Override
public int getItemCount() {
return mList.size();
}
class GetImageTask extends AsyncTask<String, Void, Bitmap> {
private final Movie movie;
private final ViewHolder holder;
public GetImageTask(Movie movie, ViewHolder holder) {
this.movie = movie;
this.holder = holder;
}
#Override
protected Bitmap doInBackground(String... params) {
//download:
String address = params[0];
Bitmap bitmap = HttpHandler.getBitmap(address, null);
//save it in the cache for later:
if (bitmap != null) {
bitmapCache.put(address, bitmap);
}
return bitmap;
}
#Override
protected void onPostExecute(Bitmap result) {
if (movie.equals(holder.poster)) {
holder.poster.setVisibility(View.VISIBLE);
holder.poster.setImageBitmap(result);
}
}
}
}
I think the problem is that my movie class is empty, but i do have JSON results in asynctask...
Your received data , which you have saved in the list -->movieList.
Have you used it in your adapter and set the adapter to the recycler view.
Initialize recycler view in main class
initialize adapter and pass the movielist as arguement to the adapter object created.
attach the adapter to the recyclerview --> recyclerView.setAdapter(adapter).
I think this should work
I've been searching everywhere for the solution, but it has come to a dead end.
Please help!
I record and save the video as the follow:
File DirectoryFile = new File(VideoPath);
recorder.setOutputFile(DirectoryFile.getAbsolutePath());
I load all the videos and set the ListView adapter from the userPath as follow:
private File[] getNewImageFilesWithFilters() {
File directory = new File(UserSavedDirectoryPATH);
return directory.listFiles(new FilenameFilter() {
public boolean accept(File dir, String name) {
return name.toLowerCase(Locale.getDefault()).endsWith(".mp4")
|| name.toLowerCase(Locale.getDefault()).endsWith(".mkv");
}
});
}
public void LoadListView() {
for (File file : listFile){
mVideoListViewObject = new VideoListViewObject();
mVideoListViewObject.setName(file.getName());
mVideoListViewObject.setVideoUrl(file.getAbsolutePath());
VideoListViewObject_List.add(mVideoListViewObject);
}
mVideoListViewAdapter = new VideoListAdapter(this, VideoListViewObject_List);
mListView.setAdapter(mVideoListViewAdapter);
}
The ListView Adapter:
public class VideoListAdapter extends BaseAdapter {
private List<VideoListViewObject> VideoObjectList;
private Context mContext;
public VideoListAdapter(Context context, List<VideoListViewObject> newList){
this.mContext = context;
this.VideoObjectList = newList;
}
#Override
public int getCount() {
return VideoObjectList.size();
}
#Override
public VideoListViewObject getItem(int position) {
return VideoObjectList.get(position);
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public View getView(final int position, View convertView, ViewGroup parent) {
ViewHolder viewHolder = new ViewHolder();
LayoutInflater inflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
if (convertView == null) {
convertView = inflater.inflate(R.layout.listview_layout, parent, false);
viewHolder.imageView = (ImageView)convertView.findViewById(R.id.ListViewImage);
viewHolder.layout = (RelativeLayout)convertView.findViewById(R.id.ListViewLayout);
convertView.setTag(viewHolder);
}
else
{
viewHolder = (ViewHolder)convertView.getTag();
}
Bitmap bmThumbnail = ThumbnailUtils.createVideoThumbnail(VideoObjectList.get(position).getVideoUrl(),Thumbnails.MICRO_KIND);
viewHolder.imageView.setImageBitmap(bmThumbnail);
The problem is the list is slow to load, especially when there are a lot of videos.
This causes my VideoaAtivity to start very slow.
I love Piscasso and Universal Image Loader, but they only support images.
Does anyone know a better solution or a library that would help with the performance?
Thank you very much.
I just modified my own application to do similar logic to pre-create the thumbnails which made the list scroll very fast at the start, Add the thumbnail bitmap to the videoListViewObject and create the thumbnail
when loading the video list. this way you do not have to create it every time getView is called in your adapter.
public class VideoListViewObject{
private Bitmap bitmap = null;
............................
public void setBitmap(Bitmap bitmap)
{
this.bitmap = bitmap;
}
public Bitmap getBitmap()
{
return this.bitmap;
}
}
public void LoadListView() {
for (File file : listFile){
mVideoListViewObject = new VideoListViewObject();
mVideoListViewObject.setName(file.getName());
mVideoListViewObject.setVideoUrl(file.getAbsolutePath());
Bitmap bmThumbnail = ThumbnailUtils.createVideoThumbnail(VideoObjectList.get(position).getVideoUrl(),Thumbnails.MICRO_KIND);
mVideoListViewObject.setBitmap(bmThumbnail);
VideoListViewObject_List.add(mVideoListViewObject);
}
mVideoListViewAdapter = new VideoListAdapter(this, VideoListViewObject_List);
mListView.setAdapter(mVideoListViewAdapter);
}
then change your BaseAdapter code to only create the thumbnail if it is null,
public class VideoListAdapter extends BaseAdapter {
private List<VideoListViewObject> VideoObjectList;
private Context mContext;
public VideoListAdapter(Context context, List<VideoListViewObject> newList){
this.mContext = context;
this.VideoObjectList = newList;
}
#Override
public int getCount() {
return VideoObjectList.size();
}
#Override
public VideoListViewObject getItem(int position) {
return VideoObjectList.get(position);
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public View getView(final int position, View convertView, ViewGroup parent) {
ViewHolder viewHolder = new ViewHolder();
LayoutInflater inflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
if (convertView == null) {
convertView = inflater.inflate(R.layout.listview_layout, parent, false);
viewHolder.imageView = (ImageView)convertView.findViewById(R.id.ListViewImage);
viewHolder.layout = (RelativeLayout)convertView.findViewById(R.id.ListViewLayout);
convertView.setTag(viewHolder);
}
else
{
viewHolder = (ViewHolder)convertView.getTag();
}
VideoListViewObject mVideoListViewObject = getItem(position);
Bitmap bmThumbnail = mVideoListViewObject.getBitmap();
if(bmThumbnail==null)
{
bmThumbnail = ThumbnailUtils.createVideoThumbnail(VideoObjectList.get(position).getVideoUrl(),Thumbnails.MICRO_KIND);
}
viewHolder.imageView.setImageBitmap(bmThumbnail);
I am adding my two separate android activities in one application, one of my activity having volley library but it gives me an exception that appcontroller(volley library) its an application not an activity please help me out
Ya, you have mention in your manifest file appcontroller class as Application. This solves the exception.
Main Acitivity:
public class MainActivity extends FragmentActivity implements OnTabChangeListener, OnPageChangeListener {
MyPageAdapter pageAdapter;
private ViewPager mViewPager;
private TabHost mTabHost;
private Button btn;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mViewPager = (ViewPager) findViewById(R.id.viewpager);
// Tab Initialization
initialiseTabHost();
// Fragments and ViewPager Initialization
List<Fragment> fragments = getFragments();
pageAdapter = new MyPageAdapter(getSupportFragmentManager(), fragments);
mViewPager.setAdapter(pageAdapter);
mViewPager.setOnPageChangeListener(MainActivity.this);
}
// Method to add a TabHost
private static void AddTab(MainActivity activity, TabHost tabHost, TabHost.TabSpec tabSpec,String message,int picture,Context x)
{
tabSpec.setContent(new MyTabFactory(activity));
View tabIndicator = LayoutInflater.from(x).inflate(R.layout.tab_indicator, tabHost.getTabWidget(), false);
TextView title = (TextView) tabIndicator.findViewById(R.id.title);
title.setText(message);
ImageView icon = (ImageView) tabIndicator.findViewById(R.id.icon);
icon.setBackgroundDrawable(x.getResources().getDrawable(picture));
icon.setScaleType(ImageView.ScaleType.FIT_CENTER);
tabSpec.setIndicator(tabIndicator);
tabHost.addTab(tabSpec);
}
// Manages the Tab changes, synchronizing it with Pages
public void onTabChanged(String tag) {
int pos = this.mTabHost.getCurrentTab();
this.mViewPager.setCurrentItem(pos);
for(int i=0;i<mTabHost.getTabWidget().getChildCount();i++)
{
mTabHost.getTabWidget().getChildAt(i).setBackgroundColor(Color.BLUE);
//mTabHost.getTabWidget().setDividerDrawable(R.Color.transperant);
}
mTabHost.getTabWidget().getChildAt(mTabHost.getCurrentTab()).setBackgroundColor(Color.CYAN);// selected
}
#Override
public void onPageScrollStateChanged(int arg0) {
}
public void destroyItem(View collection, int position, Object view){
((ViewPager) collection).removeView((ImageView) view);
}
// Manages the Page changes, synchronizing it with Tabs
#Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
int pos = this.mViewPager.getCurrentItem();
this.mTabHost.setCurrentTab(pos);
}
#Override
public void onPageSelected(int arg0) {
}
private List<Fragment> getFragments(){
List<Fragment> fList = new ArrayList<Fragment>();
// TODO Put here your Fragments
NewSampleFragment f1 = NewSampleFragment.newInstance(getApplicationContext(),R.layout.newfragment_a);
MySampleFragment f2 = MySampleFragment.newInstance("Sample Fragment 2");
MySampleFragment f3 = MySampleFragment.newInstance("Sample Fragment 3");
MySampleFragment f4 = MySampleFragment.newInstance("Sample Fragment 4");
MySampleFragment f5 = MySampleFragment.newInstance("Sample Fragment 5");
fList.add(f1);
fList.add(f2);
fList.add(f3);
fList.add(f4);
fList.add(f5);
return fList;
}
// Tabs Creation
private void initialiseTabHost() {
mTabHost = (TabHost) findViewById(android.R.id.tabhost);
mTabHost.setup();
// TODO Put here your Tabs
MainActivity.AddTab(this, this.mTabHost, this.mTabHost.newTabSpec("Tab1").setIndicator("Tab1"),"Grocery",R.drawable.movies,getApplicationContext());
MainActivity.AddTab(this, this.mTabHost, this.mTabHost.newTabSpec("Tab2").setIndicator("Tab2"),"Crockery",R.drawable.artist,getApplicationContext());
MainActivity.AddTab(this, this.mTabHost, this.mTabHost.newTabSpec("Tab3").setIndicator("Tab3"),"Foods",R.drawable.song,getApplicationContext());
MainActivity.AddTab(this, this.mTabHost, this.mTabHost.newTabSpec("Tab3").setIndicator("Tab4"),"Drinks",R.drawable.shopping,getApplicationContext());
MainActivity.AddTab(this, this.mTabHost, this.mTabHost.newTabSpec("Tab3").setIndicator("Tab5"),"Toys",R.drawable.play,getApplicationContext());
mTabHost.setOnTabChangedListener(this);
}
}
OfferActivity (This should be open when button pressed)
public class OfferActivity extends Activity
{
private static final String TAG = MainActivity.class.getSimpleName();
private ListView listView;
private FeedListAdapter listAdapter;
private List<FeedItem> feedItems;
private ProgressDialog pDialog;
private String URL_FEED = "http://nusdtech.com/public_html/checking2.php";
#SuppressLint("NewApi")
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main1);
listView = (ListView) findViewById(R.id.list);
feedItems = new ArrayList<FeedItem>();
listAdapter = new FeedListAdapter(this, feedItems);
listView.setAdapter(listAdapter);
pDialog = new ProgressDialog(this);
// Showing progress dialog before making http request
pDialog.setMessage("Loading...");
pDialog.show();
// These two lines not needed,
// just to get the look of facebook (changing background color & hiding the icon)
getActionBar().setBackgroundDrawable(new ColorDrawable(Color.parseColor("#3b5998")));
//getActionBar().setIcon(
// new ColorDrawable(getResources().getColor(android.R.color.transparent)));
JsonArrayRequest movieReq = new JsonArrayRequest(URL_FEED,
new Response.Listener<JSONArray>() {
#Override
public void onResponse(JSONArray response) {
Log.d(TAG, response.toString());
hidePDialog();
// Parsing json
for (int i = 0; i < response.length(); i++) {
try {
JSONObject obj = response.getJSONObject(i);
FeedItem movie = new FeedItem();
movie.setId(obj.getInt("id"));
movie.setName(obj.getString("name"));
// Image might be null sometimes
String image = obj.isNull("image") ? null : obj
.getString("image");
movie.setImge(image);
movie.setStatus(obj.getString("status"));
movie.setProfilePic(obj.getString("profilePic"));
//movie.setTimeStamp(obj.getString("price"));
movie.setPrice(obj.getString("price"));
movie.setDate(obj.getString("dates"));
feedItems.add(movie);
} catch (JSONException e) {
e.printStackTrace();
}
}
// notifying list adapter about data changes
// so that it renders the list view with updated data
listAdapter.notifyDataSetChanged();
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
VolleyLog.d(TAG, "Error: " + error.getMessage());
hidePDialog();
}
});
// Adding request to request queue
AppController.getInstance().addToRequestQueue(movieReq);
}
#Override
public void onDestroy() {
super.onDestroy();
hidePDialog();
}
private void hidePDialog() {
if (pDialog != null) {
pDialog.dismiss();
pDialog = null;
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}
AppController:
public class AppController extends Application {
public static final String TAG = AppController.class.getSimpleName();
private RequestQueue mRequestQueue;
private ImageLoader mImageLoader;
LruBitmapCache mLruBitmapCache;
private static AppController mInstance;
#Override
public void onCreate() {
super.onCreate();
mInstance = this;
}
public static synchronized AppController getInstance() {
return mInstance;
}
public RequestQueue getRequestQueue() {
if (mRequestQueue == null) {
mRequestQueue = Volley.newRequestQueue(getApplicationContext());
}
return mRequestQueue;
}
public ImageLoader getImageLoader() {
getRequestQueue();
if (mImageLoader == null) {
getLruBitmapCache();
mImageLoader = new ImageLoader(this.mRequestQueue, mLruBitmapCache);
}
return this.mImageLoader;
}
public LruBitmapCache getLruBitmapCache() {
if (mLruBitmapCache == null)
mLruBitmapCache = new LruBitmapCache();
return this.mLruBitmapCache;
}
public <T> void addToRequestQueue(Request<T> req, String tag) {
req.setTag(TextUtils.isEmpty(tag) ? TAG : tag);
getRequestQueue().add(req);
}
public <T> void addToRequestQueue(Request<T> req) {
req.setTag(TAG);
getRequestQueue().add(req);
}
public void cancelPendingRequests(Object tag) {
if (mRequestQueue != null) {
mRequestQueue.cancelAll(tag);
}
}
}
Activity that contain fragment buttons
public class NewSampleFragment extends Fragment {
private static View mView;
private Context con;
public static final NewSampleFragment newInstance(Context con,int layout) {
NewSampleFragment f = new NewSampleFragment();
con=con;
Bundle b = new Bundle();
b.putInt("mylayout",layout);
f.setArguments(b);
return f;
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
int layout = getArguments().getInt("mylayout");
mView = inflater.inflate(R.layout.newfragment_a, container, false);
Button button = (Button) mView.findViewById(R.id.bactivity);
Button offer=(Button) mView.findViewById(R.id.aactivity);
button.setOnClickListener(new OnClickListener()
{
#Override
public void onClick(View v)
{
Intent myIntent = new Intent(getActivity(), ListViewDemo.class);
//Optional parameters
getActivity().startActivity(myIntent);
Log.e("Error","Kashif");
}
});
offer.setOnClickListener(new OnClickListener()
{
#Override
public void onClick(View v)
{
startApplication("uzair.sabir.app.OfferActivity");
}
});
return mView;
}
public void startApplication(String application_name){
try{
Intent intent = new Intent("android.intent.action.MAIN");
intent.addCategory("android.intent.category.LAUNCHER");
intent.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
List<ResolveInfo> resolveinfo_list = getActivity().getPackageManager().queryIntentActivities(intent, 0);
for(ResolveInfo info:resolveinfo_list){
if(info.activityInfo.packageName.equalsIgnoreCase(application_name)){
launchComponent("uzair.sabir.app", "OfferActivity");
break;
}
}
}
catch (ActivityNotFoundException e) {
Toast.makeText(getActivity(), "There was a problem loading the application: "+application_name,Toast.LENGTH_SHORT).show();
Log.e("Error",e.getMessage());
}
}
private void launchComponent(String packageName, String name){
Intent launch_intent = new Intent("android.intent.action.MAIN");
launch_intent.addCategory("android.intent.category.LAUNCHER");
launch_intent.setComponent(new ComponentName(packageName, name));
launch_intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
getActivity().startActivity(launch_intent);
}
}
In this part of my application there is a ViewPager contents in a fragment,
when i replace the fragment contains the viewpager android doesn't clear the memory.
How can I clear the memory?
this is the adapter for the listview:
public class LineeAdapter extends ArrayAdapter<Linea> {
private final List<Linea> list;
private final Activity context;
private final int layout;
public LineeAdapter(Activity context,int layout, List<Linea> list) {
super(context, layout, list);
this.context = context;
this.list = list;
this.layout=layout;
}
static class ViewHolder {
protected TextView text;
protected TextView text1;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
View view = null;
if (convertView == null) {
LayoutInflater inflator = context.getLayoutInflater();
view = inflator.inflate(layout, null);
final ViewHolder viewHolder = new ViewHolder();
viewHolder.text = (TextView) view.findViewById(R.id.cod_linea);
viewHolder.text1 = (TextView) view.findViewById(R.id.descrizione_linea);
view.setTag(viewHolder);
} else {
view = convertView;
}
ViewHolder holder = (ViewHolder) view.getTag();
holder.text.setText(list.get(position).getCod_Linea());
holder.text1.setText(list.get(position).getDesc_Linea());
return view;
}
this is the fragmet contain in the view pager
public class TempiAtt_Linee extends Fragment
{
View view;
ListView lw;
int dati;
LineeAdapter adapter;
List<Linea> linee ;
static TempiAtt_Linee newInstance(int num)
{
TempiAtt_Linee f = new TempiAtt_Linee();
return f;
}
#Override
public void onDestroyView()
{
super.onDestroyView();
getView().destroyDrawingCache();
linee.clear();
adapter.notifyDataSetChanged();
adapter.clear();
view = null;
lw = null;
linee = null;
System.gc();
}
#Override
public void onActivityCreated(Bundle savedInstanceState)
{
super.onActivityCreated(savedInstanceState);
linee= new ArrayList<Linea>();
for (int i = 0; i < Main.GeneralObject.getLinee().size(); i++)
{
this.linee.add(Main.GeneralObject.getLinee().get(i));
}
lw = (ListView) getView().findViewById(R.id.list_view);
adapter = new LineeAdapter(getActivity(), R.layout.row_linea, linee);
lw.setAdapter(adapter);
lw.setOnItemClickListener(new OnItemClickListener()
{
#Override
public void onItemClick(AdapterView<?> arg0, View arg1,
int position, long arg3)
{
ArrayList<Percorso> tratte = linee.get(position).getPercorsi();
Fragment fragment = new TempiAtt_Percorsi();
FragmentManager fragmentManager = getActivity()
.getSupportFragmentManager();
Bundle temp = new Bundle();
temp.putString("linea", linee.get(position).getCod_Linea()
.replace(" ", "_"));
temp.putSerializable("tratte",
SerializerClass.serializeObject(tratte));
fragment.setArguments(temp);
fragmentManager.beginTransaction().addToBackStack(null)
.replace(R.id.content_frame, fragment).commit();
}
});
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState)
{
view = inflater.inflate(R.layout.generic_listview, container, false);
return view;
}
}
and this is the fragment of the viewpager:
public class TempiAtt extends Fragment {
// list contains fragments to instantiate in the viewpager
List<Fragment> fragments = null;
int NUM = 3;
List<String> fragmentTitles = null;
// page adapter between fragment list and view pager
private MyAdapter mPagerAdapter = null;
// view pager
private ViewPager mViewPager;
private Handler handler;
View view;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
view = inflater.inflate(R.layout.main_prova, container, false);
return view;
}
public void clear() {
if (null != mViewPager) {
mViewPager.removeAllViews();
}
}
#Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
mViewPager = (ViewPager) getView().findViewById(R.id.pager);
fragments = new Vector<Fragment>();
setRetainInstance(true);
fragmentTitles = new Vector<String>();
Bundle scheda = new Bundle();
scheda.putInt("scheda", 0);
// creating fragments and adding to list
fragments.add(Fragment.instantiate(getActivity(),
TempiAtt_Linee.class.getName(), scheda));
fragmentTitles.add(getActivity().getResources().getString(
R.string.urbana_como));
Bundle scheda1 = new Bundle();
scheda1.putInt("scheda", 1);
fragments.add(Fragment.instantiate(getActivity(),
TempiAtt_Linee.class.getName(), scheda1));
fragmentTitles.add(getActivity().getResources().getString(
R.string.extraurbana));
Bundle scheda2 = new Bundle();
scheda2.putInt("scheda", 2);
fragments.add(Fragment.instantiate(getActivity(),
TempiAtt_Linee.class.getName(), scheda2));
fragmentTitles.add(getActivity().getResources().getString(
R.string.urbana_cantu));
View pagerStrip = super.getView().findViewById(R.id.pagerTabStrip);
if (pagerStrip instanceof PagerTabStrip) {
PagerTabStrip pagerTabStrip = (PagerTabStrip) pagerStrip;
pagerTabStrip.setDrawFullUnderline(true);
pagerTabStrip.setTabIndicatorColorResource(R.color.bianco);
} else if (pagerStrip instanceof PagerTitleStrip) {
PagerTitleStrip pagerTitleStrip = (PagerTitleStrip) pagerStrip;
pagerTitleStrip.setTextColor(getResources().getColor(
android.R.color.white));
}
/*
* this.mPagerAdapter = new PagerAdapter(getChildFragmentManager(),
* fragments, fragmentTitles);
* mViewPager.setAdapter(this.mPagerAdapter);
* mViewPager.setCurrentItem(0);
*/
mPagerAdapter = new MyAdapter(getChildFragmentManager());
handler = new Handler();
handler.post(new Runnable() {
#Override
public void run() {
mViewPager.setAdapter(mPagerAdapter);
}
});
mViewPager.setOffscreenPageLimit(2);
}
#Override
public void onDestroyView() {
super.onDestroyView();
onDestroy();
deleteCard();
clear();
view = null;
System.gc();
}
public void deleteCard() {
// Reduce the card counter by one
NUM -= 3;
for (int i = 0; i < fragments.size(); i++) {
fragments.remove(i);
Log.e("SONO IO", fragments.size() + "");
}
mPagerAdapter.notifyDataSetChanged();
}
private class MyAdapter extends FragmentPagerAdapter {
private SparseArray<WeakReference<TempiAtt_Linee>> mPageReferenceMap = new SparseArray<WeakReference<TempiAtt_Linee>>();;
public MyAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int index) {
return getFragment(index);
}
#Override
public int getCount() {
return NUM;
}
public int getItemPosition(Object object) {
return POSITION_NONE;
}
public TempiAtt_Linee getFragment(int key) {
WeakReference<TempiAtt_Linee> weakReference = mPageReferenceMap
.get(key);
if (null != weakReference) {
return (TempiAtt_Linee) weakReference.get();
} else {
return null;
}
}
public Object instantiateItem(ViewGroup container, int position) {
TempiAtt_Linee tempiAttLinee = TempiAtt_Linee.newInstance(position);
mPageReferenceMap.put(Integer.valueOf(position),
new WeakReference<TempiAtt_Linee>(tempiAttLinee));
return super.instantiateItem(container, position);
}
#Override
public void destroyItem(ViewGroup container, int position, Object object) {
super.destroyItem(container, position, object);
mPageReferenceMap.remove(Integer.valueOf(position));
}
}
}