2
Good night,
I have an Activity Class that generates an Array String, I need to pass this array to another Class but this class is a Pageadapter.
What I need to do is take the Activity Filearray variable and send it to Pageadapter.
imageView.setImageResource(Integer.parseInt( )); // aqui eu preciso receber um array
But the way I learned the two classes has to be Activity.
Activity:
public class SwipeActivity extends Activity{
public static File[] files;
public static String pasta;
ViewPager viewPager;
CustomSwipeAdpter adpter;
File new_folder;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.swipe_activity);
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);
Bundle bundle = getIntent().getExtras();
if (bundle.containsKey("URLRevista") &&
bundle.containsKey("NumPaginas") &&
bundle.containsKey("Pasta")){
String Url = bundle.getString("URLRevista");
int NumPaginas = Integer.valueOf(bundle.getString("NumPaginas"));
pasta = bundle.getString("Pasta");
ContextWrapper cw = new ContextWrapper(getApplicationContext());
// path to data/data/yourapp/app_data/imageDir
new_folder = cw.getDir(pasta, Context.MODE_PRIVATE);
if (!new_folder.exists()){
new_folder.mkdir();
}
// verifica a pasta se tem arquivo //
files = new_folder.listFiles();
if ((files.length > 0)) {
String[] fileArray = new String[files.length];
String[] filesResource = new String[files.length];
for (int i = 0; i < files.length; ++i) {
fileArray[i] = files[i].getAbsolutePath();
}
// depois de carregar o filearray eu preciso setar no Page Adapter //
} else {
ArrayList<String> stringArrayList = new ArrayList<String>();
// Aqui insere as strings no array //
for (int i = 1; i < NumPaginas; i++) {
// Converter contador em string e add zero a esquerda //
String formatCont = String.format("%02d", Integer.parseInt(String.valueOf(i)));
// monta o Array com as Strings //
String UrlMontada = (Url + pasta + "_" + formatCont + ".jpg");
stringArrayList.add(UrlMontada);
}
new DownloadTask().execute(stringArrayList);
}
}
viewPager = (ViewPager)findViewById(R.id.ViewPage);
adpter = new CustomSwipeAdpter(this);
viewPager.setAdapter(adpter);
}
class DownloadTask extends AsyncTask<ArrayList<String>, Integer, String> {
ProgressDialog progressDialog;
@Override
protected void onPreExecute() {
progressDialog = new ProgressDialog(SwipeActivity.this);
progressDialog.setTitle("Download em progresso...");
progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
progressDialog.setMax(100);
progressDialog.setProgress(0);
progressDialog.show();
}
@Override
protected String doInBackground(ArrayList<String>... params) {
ArrayList<String> path = params[0];
for (String urlImage : path) {
int file_length = 0;
try {
URL url = new URL(urlImage);
URLConnection urlconnection = url.openConnection();
urlconnection.connect(); // ok
file_length = urlconnection.getContentLength();
String fileName = Uri.parse(String.valueOf(url)).getLastPathSegment();
File imput_file = new File(new_folder, fileName);
InputStream inputStream = new BufferedInputStream(url.openStream(), 8192);
byte[] data = new byte[1024];
int total = 0;
int count = 0;
OutputStream outputStream = new FileOutputStream(imput_file);
while ((count = inputStream.read(data)) != -1) {
total += count;
outputStream.write(data, 0, count);
int progress = (int) total * 100 / file_length;
publishProgress(progress);
}
inputStream.close();
outputStream.close();
} catch (MalformedURLException e) { e.printStackTrace();
} catch (IOException e) { e.printStackTrace(); }
}
return "Download finalizado!";
}
@Override
protected void onProgressUpdate(Integer... values) {
progressDialog.setProgress(values[0]);
}
@Override
protected void onPostExecute(String result) {
progressDialog.hide();
Toast.makeText(getApplicationContext(), result, Toast.LENGTH_LONG).show();
}
}
here is the Pageadapter class...
public class CustomSwipeAdpter extends PagerAdapter {
private String[] image_resources;
private Context ctx;
private LayoutInflater layoutInflater;
private Resources resource;
public CustomSwipeAdpter(Context ctx) {
this.ctx = ctx;
resource = ctx.getResources();
}
@Override
public int getCount() {
return image_resources.length;
}
@Override
public boolean isViewFromObject(View view, Object object) {
return (view == (LinearLayout) object);
}
@Override
public Object instantiateItem(ViewGroup container, int position){
layoutInflater = (LayoutInflater)ctx.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View item_view = layoutInflater.inflate(R.layout.swipe_layout, container, false);
ImageView imageView = (ImageView) item_view.findViewById(R.id.imageView);
imageView.setImageResource(Integer.parseInt( )); // aqui eu preciso receber um array
imageView.setImageBitmap(
decodeSampledBitmapFromResource(resource,
R.id.imageView, // aqui esta o problema
1080,
2560));
container.addView(item_view);
return item_view;
}
@Override
public void destroyItem(ViewGroup container, int position, Object object) {
container.removeView((LinearLayout) object);
}
public static Bitmap decodeSampledBitmapFromResource(Resources res, int resId,
int reqWidth, int reqHeight) {
// First decode with inJustDecodeBounds=true to check dimensions
final BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
BitmapFactory.decodeResource(res, resId, options);
// Calculate inSampleSize
options.inSampleSize = calculateInSampleSize(options, reqWidth, reqHeight);
// Decode bitmap with inSampleSize set
options.inJustDecodeBounds = false;
return BitmapFactory.decodeResource(res, resId, options);
}
public static int calculateInSampleSize(
BitmapFactory.Options options, int reqWidth, int reqHeight) {
// Raw height and width of image
final int height = options.outHeight;
final int width = options.outWidth;
int inSampleSize = 2;
if (height > reqHeight || width > reqWidth) {
final int halfHeight = height / 2;
final int halfWidth = width / 2;
// Calculate the largest inSampleSize value that is a power of 2 and keeps both
// height and width larger than the requested height and width.
while ((halfHeight / inSampleSize) > reqHeight
&& (halfWidth / inSampleSize) > reqWidth) {
inSampleSize *= 2;
}
}
return inSampleSize;
}
If you post the Pageadapter code we can help you. However, you tried to get past the Pageadapter maker?
– Douglas Fornaro
Douglas I edited my doubt...I’m new on Android as I pass the build of Pageadpter. Valeu.
– Fabricio Aguiar
Thanks for your Edit, which object you really need to move to Customswipeadpter?
– Douglas Fornaro
My project is an Online Magazine of the Type Veja, This is... How I am working out... I have a Manactivity with a List View and searches various web data with Json, all right. When I select one of the lines I call a Swipeactivity that downloads the pages of the Magazine for the App, I put the image paths in the Filearray, I want to take this Filearray and pass to the Custonswipeadapter and upload the images. In some youtube tutorials he straight arrow the Array with images in Drawable I need to exchange Drawable images for Filearray.
– Fabricio Aguiar