SampleGridViewAdapter.java
proguard.cfg这是我想要设置package com.alifinteractive.viewtext;
import android.content.Context;
import android.database.DataSetObserver;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.AsyncTask;
import android.util.Log;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import java.io.InputStream;
import java.net.URL;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
class SampleGridViewAdapter extends ArrayAdapter {
private final Context context;
List<String> urls;
String[] strBook;
Bitmap bmp;
public SampleGridViewAdapter(Context context, ArrayList<String> urls) {
super(context, R.layout.list_image);
this.context = context;
this.urls = urls;
Log.i("DDDDDDDDDD", String.valueOf(urls));
Object[] mStringArray = urls.toArray();
strBook = Arrays.copyOf(mStringArray, mStringArray.length, String[].class);
for (int i = 0; i < strBook.length; i++) {
Log.i("GGGGGGGGGGG", String.valueOf(strBook[i]));
}
}
@Override
public View getView(final int position, View view, ViewGroup parent) {
if (view == null) {
view = new ImageView(context);
}
loadBookIcons(view, position);
return view;
}
private void loadBookIcons(final View view, final int position) {
new AsyncTask<Void, Void, Void>() {
@Override
protected Void doInBackground(Void... params) {
try {
InputStream in = new URL(strBook[position]).openStream();
bmp = BitmapFactory.decodeStream(in);
} catch (Exception e) {
Log.i("ERRORRRRRR", e.toString());
}
return null;
}
@Override
protected void onPostExecute(Void result) {
if (bmp != null) {
((ImageView) view).setImageBitmap(bmp);
}
}
}.execute();
}
@Override
public int getViewTypeCount() {
// TODO Auto-generated method stub
return 0;
}
@Override
public boolean hasStableIds() {
// TODO Auto-generated method stub
return false;
}
@Override
public boolean isEmpty() {
// TODO Auto-generated method stub
return false;
}
@Override
public void registerDataSetObserver(DataSetObserver arg0) {
// TODO Auto-generated method stub
}
@Override
public void unregisterDataSetObserver(DataSetObserver arg0) {
// TODO Auto-generated method stub
}
@Override
public boolean areAllItemsEnabled() {
// TODO Auto-generated method stub
return false;
}
@Override
public boolean isEnabled(int arg0) {
// TODO Auto-generated method stub
return false;
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return 0;
}
@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return null;
}
@Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return 0;
}
}
Fragment
GridView我想在package com.alifinteractive.viewtext;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import org.json.JSONArray;
import org.json.JSONObject;
import java.util.ArrayList;
public class Home_new extends Fragment {
//Login login;
String json;
JSONObject jsonObj;
String imageUrl;
//String name;
ImageView img;
ArrayList<String> Urls = new ArrayList<String>();
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_home1, container, false);
//GridView grid=(GridView)rootView.findViewById(R.id.grid_view);
//grid.setAdapter(new SampleGridViewAdapter(getActivity(),Urls));
// username=Login.getUserObject(getActivity(), "username");
// password=Login.getUserObject(getActivity(), "password");
String oldjson = Login.getUserObject(getActivity(), "order_json");
json = oldjson.replaceAll("\\\\", "");
Log.i("QQQQQQQQ", json);
try {
JSONArray results = new JSONObject(json).getJSONArray("CustomerOrders");
for (int i = 0; i < 10; i++) {
JSONObject menuObject = results.getJSONObject(i);
Log.i("ooooooooo", String.valueOf(menuObject));
imageUrl = menuObject.getString("image");
Log.i("FFFFFFF", imageUrl);
Urls.add(i, imageUrl);
Log.i("LLLLLLL", String.valueOf(Urls));
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
Log.i("ZZZZZZZ", String.valueOf(Urls));
// TODO Auto-generated catch block
return rootView;
}
}
上设置adapter但收到错误，请提前感谢
答案 0 :(得分：0)
@Override
public View getView(int position, View convertView, ViewGroup parent) {
LinearLayout view = new LinearLayout(context);
view.setOrientation(LinearLayout.HORIZONTAL);
view.setPadding(1, 1, 1, 1);
//Icon of Item
ImageView imageView = new ImageView(context);
imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
imageView.setLayoutParams(new GridView.LayoutParams(220, 220));
view.setGravity(Gravity.CENTER_HORIZONTAL);
String url = getItem(position);
Log.i("AAAAAA",String.valueOf(url));
Picasso.with(context) //
.load(url) //
.error(R.drawable.error) //
.fit() //
.into(imageView);
view.addView(imageView);
return view;
}