我想用dynemic数据创建curlview。我使用imageview将图像显示到curlview中，因为我的api包含数据中的图像。但图像没有显示在imageview中我是怎么做到的？
以下是我的代码。
public class CurlActivity extends Activity {
private CurlView mCurlView;
public String cid;
public ArrayList<String>magazineidlist;
public String middata;
public String url;
public String imgurl;
public Bitmap bitmap;
public ImageLoader imageloder;
public ImageView imageView;
public ArrayList<String>imageurllist;
public GridImageAdapter gadapter;
public CurlActivity c;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main_curl);
gadapter = new GridImageAdapter(c, imageurllist);
if (android.os.Build.VERSION.SDK_INT > 9) {
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);
}
getAllMagazineById();
Intent intent = getIntent();
Bundle bundle = intent.getExtras();
if(bundle!=null){
cid = bundle.getString("mid");
Log.d("magazine id", cid);
}
int index = 0;
if (getLastNonConfigurationInstance() != null) {
index = (Integer) getLastNonConfigurationInstance();
}
mCurlView = (CurlView) findViewById(R.id.curl);
}
@Override
public void onPause() {
super.onPause();
mCurlView.onPause();
}
@Override
public void onResume() {
super.onResume();
mCurlView.onResume();
}
@Override
public Object onRetainNonConfigurationInstance() {
return mCurlView.getCurrentIndex();
}
/**
* Bitmap provider.
*/
private class PageProvider implements CurlView.PageProvider {
// Bitmap resources.
private int[] mBitmapIds = { R.layout.sample};
//LinearLayout llout = (LinearLayout) findViewById(R.layout.sample);
@SuppressWarnings("unused")
//ImageView imageView = (ImageView) findViewById(R.id.imageviewsample);
@Override
public int getPageCount() {
return imageurllist.size();
}
private Bitmap loadBitmap(int width, int height, int index) {
LayoutInflater inflater =
(LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);
Log.d("index",String.valueOf(index));
View v = inflater.inflate(mBitmapIds[index],null);
v.measure(
MeasureSpec.makeMeasureSpec(width,MeasureSpec.EXACTLY),
MeasureSpec.makeMeasureSpec(height, MeasureSpec.EXACTLY));
v.layout(0, 0, v.getMeasuredWidth(), v.getMeasuredHeight());
Bitmap b = Bitmap.createBitmap(v.getWidth(), v.getHeight()
,Bitmap.Config.ARGB_8888);
Canvas c = new Canvas(b);
v.draw(c);
return b;
}
@Override
public void updatePage(CurlPage page, int width, int height, int index) {
switch (index) {
// First case is image on front side, solid colored back.
default:
Bitmap front = loadBitmap(width, height, 0);
page.setTexture(front, CurlPage.SIDE_FRONT);
page.setColor(Color.rgb(180, 180, 180), CurlPage.SIDE_BACK);
break;
/*// Third case is images on both sides.
case 2: {
Bitmap front = loadBitmap(width, height, 1);
Bitmap back = loadBitmap(width, height, 3);
page.setTexture(front, CurlPage.SIDE_FRONT);
page.setTexture(back, CurlPage.SIDE_BACK);
break;
}
// Fourth case is images on both sides - plus they are blend against
// separate colors.
case 3: {
Bitmap front = loadBitmap(width, height, 2);
Bitmap back = loadBitmap(width, height, 1);
page.setTexture(front, CurlPage.SIDE_FRONT);
page.setTexture(back, CurlPage.SIDE_BACK);
page.setColor(Color.argb(127, 170, 130, 255),
CurlPage.SIDE_FRONT);
page.setColor(Color.rgb(255, 190, 150), CurlPage.SIDE_BACK);
break;
}
// Fifth case is same image is assigned to front and back. In this
// scenario only one texture is used and shared for both sides.
case 4:
Bitmap front = loadBitmap(width, height, 0);
page.setTexture(front, CurlPage.SIDE_BOTH);
page.setColor(Color.argb(127, 255, 255, 255),
CurlPage.SIDE_BACK);
break;*/
}
}
}
/**
* CurlView size changed observer.
*/
class SizeChangedObserver implements CurlView.SizeChangedObserver {
@Override
public void onSizeChanged(int w, int h) {
if (w > h) {
mCurlView.setViewMode(CurlView.SHOW_TWO_PAGES);
mCurlView.setMargins(.1f, .05f, .1f, .05f);
} else {
mCurlView.setViewMode(CurlView.SHOW_ONE_PAGE);
//mCurlView.setMargins(.1f, .1f, .1f, .1f);
}
}
}
public Bitmap GetBitmapfromUrl(String scr) {
try {
URL url=new URL(scr);
HttpURLConnection connection=(HttpURLConnection)url.openConnection();
connection.setDoInput(true);
connection.connect();
InputStream input=connection.getInputStream();
BitmapFactory.Options options = new BitmapFactory.Options();
options.inSampleSize = 2;
Bitmap bitmap = BitmapFactory.decodeStream(input, null, options);
// Bitmap bmp = BitmapFactory.decodeStream(input);
return bitmap;
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
return null;
}
}
public void getAllMagazineById() {
new AsyncTask<Void, Void, String>() {
ProgressDialog mProgressDialog;
protected void onPostExecute(String result) {
mProgressDialog.dismiss();
magazineidlist = new ArrayList<String>();
imageurllist = new ArrayList<String>();
//imageloder = new ImageLoader(CurlActivity.this);
// LayoutInflater factory = LayoutInflater.from(CurlActivity.this);
// View child = factory.inflate(R.layout.sample, null);
// imageView = (ImageView)child.findViewById(R.id.imageviewsample);
//imageView = (ImageView)findViewById(R.id.imageviewsample);
try {
JSONObject jsob = new JSONObject(result.toString());
if (jsob.getString("msg").equalsIgnoreCase("Success")) {
JSONArray datajson = jsob.getJSONArray("data");
for (int i = 0; i < datajson.length(); i++) {
JSONObject c = datajson.getJSONObject(i);
middata = c.getString("magazine_id");
imgurl = c.getString("image_url");
magazineidlist.add(middata);
imageurllist.add(imgurl);
Log.d("imageurllist value at index" +i, imageurllist.get(i));
//imageloder.DisplayImage(imageurllist.get(i),imageView);
String url = imageurllist.get(i);
Log.d("url val", url);
}
mCurlView.setPageProvider(new PageProvider());
mCurlView.setSizeChangedObserver(new SizeChangedObserver());
//mCurlView.setCurrentIndex(0);
mCurlView.setBackgroundColor(0xFF202830);
} else if(jsob.getString("msg").equalsIgnoreCase("Failure")) {
System.out.println("not a valid data");
}
else
{
System.out.println("error");
}
} catch (Exception e) {
Log.e("error", "" + e);
}
}
private void startActivity(Intent i) {
// TODO Auto-generated method stub
}
@Override
protected String doInBackground(Void... arg0) {
// Creating service handler class instance
try {
HttpPost httppost1 = null;
HttpClient httpclient1 = new DefaultHttpClient();
httppost1 = new HttpPost(JsonKey.MAIN_URL);
// Add your data
List<NameValuePair> nameValuePairs1 = new ArrayList<NameValuePair>(
2);
nameValuePairs1.add(new BasicNameValuePair("action",
"GetMagazinePageImagesbyid"));
nameValuePairs1.add(new BasicNameValuePair("iMagezineId",
cid));
httppost1.setEntity(new UrlEncodedFormEntity(
nameValuePairs1));
// Execute HTTP Post Request
HttpResponse response1 = httpclient1.execute(httppost1);
BufferedReader in1 = new BufferedReader(
new InputStreamReader(response1.getEntity()
.getContent()));
StringBuffer sb1 = new StringBuffer("");
String line1 = "";
while ((line1 = in1.readLine()) != null) {
sb1.append(line1);
}
in1.close();
Log.e(" Get All magazine original data", sb1.toString());
return sb1.toString();
} catch (Exception e) {
Log.e("Get All magazine response problem", "" + e);
return " ";
}
}
@Override
protected void onPreExecute() {
// TODO Auto-generated method stub
super.onPreExecute();
mProgressDialog = new ProgressDialog(CurlActivity.this);
mProgressDialog.setTitle("");
mProgressDialog.setCanceledOnTouchOutside(false);
mProgressDialog.setMessage("Please Wait...");
mProgressDialog.show();
}
}.execute();
}
public static Bitmap getBitmapFromURL(String src) {
try {
URL url = new URL(src);
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setDoInput(true);
connection.connect();
InputStream input = connection.getInputStream();
Bitmap myBitmap = BitmapFactory.decodeStream(input);
return myBitmap;
} catch (IOException e) {
// Log exception
return null;
}
}
Bitmap drawable_from_url(String url) throws java.net.MalformedURLException, java.io.IOException {
Bitmap x;
HttpURLConnection connection = (HttpURLConnection)new URL(url) .openConnection();
connection.setRequestProperty("User-agent","Mozilla/4.0");
connection.connect();
InputStream input = connection.getInputStream();
x = BitmapFactory.decodeStream(input);
return x;
}
public class GridImageAdapter extends BaseAdapter {
public Context mContext;
// public final String[] web;
// final int ImageId[];
public CurlActivity activity;
public ImageLoader imageloader;
// Constructor
public GridImageAdapter(CurlActivity c, ArrayList<String> imageUrl) {
// TODO Auto-generated constructor stub
mContext = c;
imageurllist = imageUrl;
imageloader = new ImageLoader(CurlActivity.this);
}
public int getCount() {
return imageurllist.size();
}
public Object getItem(int position) {
return null;
}
public long getItemId(int position) {
return 0;
}
// create a new ImageView for each item referenced by the Adapter
public View getView(int position, View convertView, ViewGroup parent) {
View grid;
LayoutInflater inflater = (LayoutInflater) mContext
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
if (convertView == null) {
grid = new View(mContext);
grid = inflater.inflate(R.layout.sample, null);
ImageView img = (ImageView) grid.findViewById(R.id.imageviewsample);
imageloader.DisplayImage(imageurllist.get(position), img);
}
/*
* ImageView imageView; if (convertView == null) { imageView = new
* ImageView(mContext); imageView.setLayoutParams(new
* GridView.LayoutParams(85, 85));
* imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
* imageView.setPadding(8, 8, 8, 8); }
*/else {
grid = (View) convertView;
}
/*
* imageView.setImageResource(mThumbIds[position]); return
* imageView;
*/
return grid;
}
// Keep all Images in array
/*
* public Integer[] mThumbIds = { R.drawable.nightlife,
* R.drawable.coffee, R.drawable.shopping, R.drawable.seeanddo,
*
* };
*/
public Bitmap StringToBitMap(String encodedString) {
try {
byte[] encodeByte = Base64
.decode(encodedString, Base64.DEFAULT);
Bitmap bitmap = BitmapFactory.decodeByteArray(encodeByte, 0,
encodeByte.length);
return bitmap;
} catch (Exception e) {
e.getMessage();
return null;
}
}
}
}