我正在制作图像的滑块，图像来自网址。我正在使用Picasso库和ViewPager。
我没有通过点击网址获取任何图片。请帮我解释为什么图片不是滑块。
MainActivity
public class MainActivity extends Activity {
// Log tag
private static final String TAG = MainActivity.class.getSimpleName();
private static final String url = "http://3359eb12.ngrok.io/api/v1/restaurants/get_featured_restaurants";
private ProgressDialog pDialog;
private List<Movie> movieList = new ArrayList<Movie>();
//private ListView listView;
ViewPager viewPager;
//private SliderLayout imageSlider;
private CustomListAdapter adapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
viewPager = (ViewPager) findViewById(R.id.view_pager);
//listView = (ListView) findViewById(R.id.list);
//imageSlider = (SliderLayout)findViewById(R.id.slider);
adapter = new CustomListAdapter(this, movieList);
//listView.setAdapter(adapter);
pDialog = new ProgressDialog(this);
// Showing progress dialog before making http request
pDialog.setMessage("Loading...");
// handler to set duration and to upate animation
final Handler mHandler = new Handler() {
@Override
public void close() {
}
@Override
public void flush() {
}
@Override
public void publish(LogRecord record) {
}
};
// Create runnable for posting
/*final Runnable mUpdateResults = new Runnable() {
public void run() {
AnimateandSlideShow();
}
};*/
pDialog.show();
// changing action bar color
getActionBar().setBackgroundDrawable(
new ColorDrawable(Color.parseColor("#1b1b1b")));
// Creating volley request obj
JsonArrayRequest movieReq = new JsonArrayRequest(url,
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);
Movie movie = new Movie();
//movie.setTitle(obj.getString("title"))
//movie.setName(obj.getString("name"));
//movie.setThumbnailUrl(obj.getString("image"));
movie.setThumbnailUrl(obj.getString("org_image_url").toString());
//movie.setAverage_ratings(obj.getString("average_ratings"));
//movie.setCuisine(obj.getString("cuisine"));
//movie.setAddress(obj.getJSONObject("address").getString("area"));
//movie.setAddress(obj.getString("address"));
//movie.setYear(obj.getInt("releaseYear"));
// Genre is json array
/*JSONArray genreArry = obj.getJSONArray("genre");
ArrayList<String> genre = new ArrayList<String>();
for (int j = 0; j < genreArry.length(); j++) {
genre.add((String) genreArry.get(j));
}
movie.setGenre(genre);*/
// adding movie to movies array
movieList.add(movie);
} catch (JSONException e) {
e.printStackTrace();
}
}
// notifying list adapter about data changes
// so that it renders the list view with updated data
adapter.notifyDataSetChanged();
setFlipperImage(movieList);
}
}, 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) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}*/
private void setFlipperImage(List<Movie> movieList) {
for(int i=0;i<movieList.size();i++){
Log.i("Set Filpper Called", movieList.get(i).toString()+"");
ImageView org_image_url = new ImageView(getApplicationContext());
//com.android.volley.toolbox.NetworkImageView thumbnail = (NetworkImageView) new ImageView(getApplicationContext());
// image.setBackgroundResource(res);
Picasso.with(MainActivity.this)
.load(movieList.get(i).toString())
.placeholder(R.drawable.bc)
.error(R.drawable.bc)
.into(org_image_url);
viewPager.addView(org_image_url);
}
//viewPager.setAutoStart(true);
}
// method to show slide show
/* private void AnimateandSlideShow() {
viewPager.showNext();
}*/
}
activity_main.xml中
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="fill_parent"
android:layout_height="match_parent"
>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="150dp"
android:orientation="vertical"
>
<android.support.v4.view.ViewPager
android:id="@+id/view_pager"
android:layout_width="match_parent"
android:layout_height="150dp"></android.support.v4.view.ViewPager>
</LinearLayout>
</LinearLayout>
customlistAdapter
public class CustomListAdapter extends PagerAdapter {
private Activity activity;
private LayoutInflater inflater;
private List<Movie> movieItems;
ImageLoader imageLoader = AppController.getInstance().getImageLoader();
public CustomListAdapter(Activity activity, List<Movie> movieItems) {
this.activity = activity;
this.movieItems = movieItems;
}
@Override
public int getCount() {
return movieItems.size();
}
@Override
public boolean isViewFromObject(View view, Object o) {
return false;
}
public Object getItem(int location) {
return movieItems.get(location);
}
public long getItemId(int position) {
return position;
}
public View getView(int position, View convertView, ViewGroup parent) {
if (inflater == null)
inflater = (LayoutInflater) activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
if (convertView == null)
convertView = inflater.inflate(R.layout.list_row, null);
if (imageLoader == null)
imageLoader = AppController.getInstance().getImageLoader();
/*ImageView img;
img = (ImageView)convertView
.findViewById(R.id.img);
img.setImageResource(R.drawable.bc);
else {*/
NetworkImageView _ImageView = (NetworkImageView) convertView.findViewById(R.id.thumbnail);
_ImageView.setDefaultImageResId(R.drawable.bc);
//NetworkImageView.setImageUrl(m.getThumbnailUrl(), ImageLoader);
/*NetworkImageView thumbNail = (NetworkImageView) convertView
.findViewById(R.id.thumbnail);*/
// TextView name = (TextView) convertView.findViewById(R.id.name);
// TextView average_ratings = (TextView) convertView.findViewById(R.id.average_ratings);
//TextView address=(TextView) convertView.findViewById(R.id.area);
// TextView cuisine =(TextView) convertView.findViewById(R.id.cuisine);
//TextView genre = (TextView) convertView.findViewById(R.id.genre);
//TextView year = (TextView) convertView.findViewById(R.id.releaseYear);
// getting movie data for the row
Movie m = movieItems.get(position);
// thumbnail image
//_ImageView.setImageUrl(m.getThumbnailUrl(), imageLoader);
/*if (TextUtils.isEmpty(m.getThumbnailUrl()))
thumbNail.setImageResource(R.drawable.bc);
else
//Log.d("KeyHash:","Neeraj");*/
_ImageView.setImageUrl(m.getThumbnailUrl(), imageLoader);
/*if (m.getThumbnailUrl().compareTo("")!=0)
thumbNail.setImageUrl(m.getThumbnailUrl(), imageLoader);
//else{
//thumbNail.setImageResource(R.drawable.bc);
else {
thumbNail.setDefaultImageResId(R.drawable.bc);
//thumbNail.setErrorImageResId(R.drawable.bc);
}*/
// title
//name.setText(m.getName());
// rating
// average_ratings.setText("Rating: " + String.valueOf(m.getAverage_ratings()));
//address.setText("Area: " + String.valueOf(m.getAddress()));
//cuisine.setText("Cusine: " + String.valueOf(m.getCuisine()));
/*// genre
String genreStr = "";
for (String str : m.getGenre()) {
genreStr += str + ", ";
}
genreStr = genreStr.length() > 0 ? genreStr.substring(0,
genreStr.length() - 2) : genreStr;
genre.setText(genreStr);
// release year
year.setText(String.valueOf(m.getYear()));*/
return convertView;
}
}
logcat的
08-03 16:30:33.600 30944-30944/info.androidhive.customlistviewvolley W/System: ClassLoader referenced unknown path: /data/app/info.androidhive.customlistviewvolley-1/lib/x86
08-03 16:30:35.259 30944-30944/info.androidhive.customlistviewvolley W/System: ClassLoader referenced unknown path: /data/app/info.androidhive.customlistviewvolley-1/lib/x86
08-03 16:30:35.381 30944-31003/info.androidhive.customlistviewvolley D/OpenGLRenderer: Use EGL_SWAP_BEHAVIOR_PRESERVED: true
[ 08-03 16:30:35.395 30944:30944 D/ ]
HostConnection::get() New Host Connection established 0xafec9330, tid 30944
[ 08-03 16:30:35.466 30944:31003 D/ ]
HostConnection::get() New Host Connection established 0xae4c7330, tid 31003
08-03 16:30:35.473 30944-31003/info.androidhive.customlistviewvolley I/OpenGLRenderer: Initialized EGL, version 1.4
08-03 16:30:36.064 30944-30950/info.androidhive.customlistviewvolley W/art: Suspending all threads took: 44.543ms
08-03 16:30:41.172 30944-30997/info.androidhive.customlistviewvolley D/Volley: [142] BasicNetwork.logSlowRequests: HTTP response for request=<[ ] http://3359eb12.ngrok.io/api/v1/restaurants/get_featured_restaurants 0x810b962b NORMAL 1> [lifetime=5705], [size=12695], [rc=200], [retryCount=1]
08-03 16:30:41.307 30944-30954/info.androidhive.customlistviewvolley I/art: Background sticky concurrent mark sweep GC freed 15441(1298KB) AllocSpace objects, 3(108KB) LOS objects, 62% free, 1379KB/3MB, paused 7.149ms total 117.493ms
08-03 16:30:41.538 30944-30944/info.androidhive.customlistviewvolley D/MainActivity: [{"id":209,"name":"Aer - Four Seasons","description":"Romantic, Happy Hours, Rooftops, Summer Cocktails","restaurant_type":null,"restaurant_url":null,"restaurant_facebook_url":null,"restaurant_google_url":null,"restaurant_zomato_url":"https:\/\/www.zomato.com\/mumbai\/aer-four-seasons-worli","average_ratings":"4.5","profile_image_file_name":"209.jpg","profile_image_content_type":"image\/jpeg","cover_image_file_name":null,"cover_image_content_type":null,"establishment_type":"Lounge,Fine Dining","cost":"4000","cuisine":"Spanish, Italian, European, Lebanese","timing":"5 PM to 1:30 AM","extras":null,"phone_numbers":[{"id":281,"restaurant_id":209,"number":"022 33126112","created_at":"2016-07-26T06:38:07.864-04:00","updated_at":"2016-07-26T06:38:07.864-04:00"}],"org_image_url":"http:\/\/comida-dev.s3.amazonaws.com\/res_pro_images\/209.jpg","thumb_image_url":"http:\/\/comida-dev.s3.amazonaws.com\/res_pro_thumb_images\/209.jpg","address":{"area":"Four Seasons, Worli","full_address":"Four Seasons Hotel, 114, E Moses Road, Worli, Mumbai,Four Seasons, Worli,mumbai,maharashtra,india,"},"menus":[],"restaurant_offers":[]},{"id":1191,"name":"Citrus - The Leela","description":"Sunday Brunches, All-day Dining","restaurant_type":null,"restaurant_url":null,"restaurant_facebook_url":null,"restaurant_google_url":null,"restaurant_zomato_url":"https:\/\/www.zomato.com\/mumbai\/citrus-the-leela-chakala","average_ratings":"4.0","profile_image_file_name":"1191.jpg","profile_image_content_type":"image\/jpeg","cover_image_file_name":null,"cover_image_content_type":null,"establishment_type":"Fine Dining","cost":"5000","cuisine":"Spanish, Italian, North Indian, American, Mediterranean, Continental, Japanese","timing":"24 Hours","extras":null,"phone_numbers":[{"id":1668,"restaurant_id":1191,"number":"022 33126849","created_at":"2016-07-26T06:38:19.929-04:00","updated_at":"2016-07-26T06:38:19.929-04:00"}],"org_image_url":"http:\/\/comida-dev.s3.amazonaws.com\/res_pro_images\/1191.jpg","thumb_image_url":"http:\/\/comida-dev.s3.amazonaws.com\/res_pro_thumb_images\/1191.jpg","address":{"area":"The Leela, Chakala","full_address":"The Leela, Andheri-Kurla Road, Sahar, Andheri East, Chakala, Mumbai,The Leela, Chakala,mumbai,maharashtra,india,"},"menus":[],"restaurant_offers":[{"id":536,"text":"Breakfast Buffet @ Rs. 1413 AI","offer_link":"https:\/\/www.dineout.co.in\/mumbai\/citrus-the-leela-mumbai-andheri-east-western-suburbs-1135","resource":"dineout"},{"id":537,"text":"\"Enjoy 10% off on food bill (Mon-Fri) lunch\"","offer_link":"https:\/\/www.eazydiner.com\/\/mumbai\/citrus-andheri-west-223109","resource":"eazydiner"}]},{"id":7952,"name":"Bombay Brew","description":null,"restaurant_type":null,"restaurant_url":null,"restaurant_facebook_url":null,"restaurant_google_url":null,"restaurant_zomato_url":"https:\/\/www.zomato.com\/mumbai\/bombay-brew-juhu","average_ratings":"-","profile_image_file_name":"7952.jpg","profile_image_content_type":"image\/jpeg","cover_image_file_name":null,"cover_image_content_type":null,"establishment_type":"Café,Quick Bites","cost":"1000","cuisine":"Cafe, Fast Food","timing":"12 Noon to 12 Midnight","extras":null,"phone_numbers":[{"id":12461,"restaurant_id":7952,"number":"022 26163636","created_at":"2016-07-26T06:39:40.510-04:00","updated_at":"2016-07-26T06:39:40.510-04:00"}],"org_image_url":"http:\/\/comida-dev.s3.amazonaws.com\/res_pro_images\/7952.jpg","thumb_image_url":"http:\/\/comida-dev.s3.amazonaws.com\/res_pro_thumb_images\/7952.jpg","address":{"area":"Juhu","full_address":"Bawa Continental, Opposite Theosophical Society, Juhu Tara Road, Juhu, Mumbai,Juhu,mumbai,maharashtra,india,"},"menus":[],"restaurant_offers":[{"id":1070,"text":"\"Enjoy 15% off on food & beverage\"","offer_link":"https:\/\/www.eazydiner.com\/\/mumbai\/bombay-brew-juhu-224184","resource":"eazydiner"}]},{"id":1980,"name":"Yuuka - The St. Regis Mumbai","description":"Super Sushi","restaurant_type":null,"restaurant_url":null,"restaurant_facebook_url":null,"restaurant_google_url":null,"restaurant_zomato_url":"https:\/\/ww
08-03 16:30:41.559 30944-31003/info.androidhive.customlistviewvolley E/Surface: getSlotFromBufferLocked: unknown buffer: 0xa29702a0
08-03 16:30:41.588 30944-30944/info.androidhive.customlistviewvolley I/Set Filpper Called: info.androidhive.customlistviewvolley.model.Movie@b97585d
08-03 16:30:41.604 30944-30944/info.androidhive.customlistviewvolley W/Settings: Setting airplane_mode_on has moved from android.provider.Settings.System to android.provider.Settings.Global, returning read-only value.
08-03 16:30:41.832 30944-30944/info.androidhive.customlistviewvolley I/Set Filpper Called: info.androidhive.customlistviewvolley.model.Movie@e47a9ff
08-03 16:30:41.843 30944-30944/info.androidhive.customlistviewvolley I/Set Filpper Called: info.androidhive.customlistviewvolley.model.Movie@ce23615
08-03 16:30:41.846 30944-30944/info.androidhive.customlistviewvolley I/Set Filpper Called: info.androidhive.customlistviewvolley.model.Movie@476e71b
08-03 16:30:41.853 30944-30944/info.androidhive.customlistviewvolley I/Set Filpper Called: info.androidhive.customlistviewvolley.model.Movie@4bd1e91
08-03 16:30:41.876 30944-30944/info.androidhive.customlistviewvolley I/Set Filpper Called: info.androidhive.customlistviewvolley.model.Movie@a59b9ce
08-03 16:30:41.876 30944-30944/info.androidhive.customlistviewvolley I/Set Filpper Called: info.androidhive.customlistviewvolley.model.Movie@ccb37fc
08-03 16:30:41.877 30944-30944/info.androidhive.customlistviewvolley I/Set Filpper Called: info.androidhive.customlistviewvolley.model.Movie@85ba4da
08-03 16:30:41.877 30944-30944/info.androidhive.customlistviewvolley I/Set Filpper Called: info.androidhive.customlistviewvolley.model.Movie@891d7e8
08-03 16:30:41.881 30944-30944/info.androidhive.customlistviewvolley I/Set Filpper Called: info.androidhive.customlistviewvolley.model.Movie@45f34a6
08-03 16:30:41.903 30944-30944/info.androidhive.customlistviewvolley D/Volley: [1] Request.finish: 6487 ms: [ ] http://3359eb12.ngrok.io/api/v1/restaurants/get_featured_restaurants 0x810b962b NORMAL 1
答案 0 :(得分：1)
替换代码：
Picasso.with(MainActivity.this)
.load(movieList.get(i).toString())
.placeholder(R.drawable.bc)
.error(R.drawable.bc)
.into(org_image_url);
这一个：
Picasso.with(MainActivity.this)
.load(movieList.get(i).getThumbnailUrl().toString())
.placeholder(R.drawable.bc)
.error(R.drawable.bc)
.into(org_image_url);
答案 1 :(得分：0)
Picasso不会加载1MB以上的图片，在毕加索中使用DISK_CACHE或在Google上搜索此内容。