Develop Reference

Can't open PDF from asset from list button

I have 2 apps that I have PDFs in the asset folders. In app A the code works perfectly fine but in app B it doesn't work. I don't get any errors. When clicking the button in app B it opens adobe acrobat but I get a toast saying "This file could not be accessed. check the location or network and try again". I even put the PDF in app A to make sure nothing was wrong with this PDF file. It opened fine in app A.
Here is my code for app B. I'm trying to open it via a button in a list.
[CODE]
public class InteractiveArrayAdapter extends ArrayAdapter<String> {
private final Context context;
private final String[] values;
static final String TAG = InteractiveArrayAdapter.class.getSimpleName();
String ta = "helen.pdf";
GPXParser mParser = new GPXParser();
public InteractiveArrayAdapter(Context context, String[] values) {
super(context, R.layout.rowbuttonlayout, values);
this.context = context;
this.values = values;
}
static class ViewHolder {
protected TextView text,header, number, web;
protected ImageButton web_pic, imageView;
ImageView bike, atv, utv;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
View view = convertView;
if (convertView == null) {
LayoutInflater inflator = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
view = inflator.inflate(R.layout.rowbuttonlayout, null);
final ViewHolder viewHolder = new ViewHolder();
viewHolder.header = (TextView) view.findViewById(R.id.header);
viewHolder.text = (TextView) view.findViewById(R.id.label);
viewHolder.bike = (ImageView) view.findViewById(R.id.bike);
viewHolder.atv = (ImageView) view.findViewById(R.id.atv);
viewHolder.utv = (ImageView) view.findViewById(R.id.utv);
viewHolder.web_pic = (ImageButton) view.findViewById(R.id.web_pic);
viewHolder.imageView = (ImageButton) view.findViewById(R.id.check);
view.setTag(viewHolder);
viewHolder.imageView.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
Intent myIntent = new Intent(context, MapActivity.class);
context.startActivity(myIntent);
}
});
viewHolder.web_pic.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
copyReadAssets();
}
});
}
ViewHolder holder = (ViewHolder) view.getTag();
holder.header.setText(values[position]);
holder.imageView.setImageResource(R.drawable.map1);
holder.web_pic.setImageResource(R.drawable.pdf);
holder.bike.setImageResource(R.drawable.bike);
holder.atv.setImageResource(R.drawable.atv_2);
holder.utv.setImageResource(R.drawable.utv);
if (position == 0) {
holder.text.setText("17.82 mi");
}
if (position == 1) {
holder.text.setText("29.09 mi");
}
if (position == 2) {
holder.text.setText("11.06 mi");
}
return view;
}
private void copyReadAssets() {
AssetManager assetManager =context. getAssets();
InputStream in = null;
OutputStream out = null;
File file = new File(context.getFilesDir(), ta);
try {
in = assetManager.open(ta);
out = context.openFileOutput(file.getName(), Context.MODE_WORLD_READABLE);
copyFile(in, out);
in.close();
in = null;
out.flush();
out.close();
out = null;
} catch (Exception e) {
Log.e("tag", e.getMessage());
}
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(
Uri.parse("file://" +context. getFilesDir() + "/"+ta),
"application/pdf");
context. startActivity(intent);
}
private void copyFile(InputStream in, OutputStream out) throws IOException {
byte[] buffer = new byte[1024];
int read;
while ((read = in.read(buffer)) != -1) {
out.write(buffer, 0, read);
}
}
}
[CODE/]

Try below code to open PDF,
in = assetManager.open(ta);
String out= Environment.getExternalStorageDirectory().getAbsolutePath() +"/"+ ta);
File outFile = new File(out, ta);
FileOutputStream oStream = new FileOutputStream(outFile);
copyFile(in, oStream);

how to create own gallery from device images in android

i want to create own image gallery with camera button..am able to show all device images in grid, and capture image also. but grid view not get refreshed dynamically..plz suggest
first i show all available images, when user capture image i want to add that image dynamically in grid view..
//--------code to get images from device--------------
private void getImages()
{
projection = new String[]{MediaStore.Images.Thumbnails._ID};
cursor = managedQuery(MediaStore.Images.Thumbnails.EXTERNAL_CONTENT_URI,
projection,
null,
null,
MediaStore.Images.Thumbnails.IMAGE_ID);
columnIndex = cursor.getColumnIndexOrThrow(MediaStore.Images.Thumbnails._ID);
}
//--------
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
Log.e("RESULT CODE", "--" + resultCode);
if (resultCode == RESULT_OK) {
if (requestCode == CAMERA_REQUEST) {
Bitmap thumbnail = (Bitmap) data.getExtras().get("data");
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
thumbnail.compress(Bitmap.CompressFormat.JPEG, 90, bytes);
Random random = new Random();
int no1 = random.nextInt(15 - 0);
int no2 = random.nextInt(25 - 15) + 15;
String fileName = tempString.substring(no1, no2) + ".jpg";
try {
Bitmap photo = (Bitmap) data.getExtras().get("data");
File outFile = new File(Environment.getExternalStorageDirectory().getAbsolutePath(), fileName);
FileOutputStream fos = new FileOutputStream(outFile);
photo.compress(Bitmap.CompressFormat.JPEG, 100, fos);
fos.flush();
fos.close();
getImages();
// sdcardImages.setAdapter(imageAdapter);
imageAdapter.notifyDataSetChanged();
}catch (Exception e) {
e.printStackTrace();
}
}
}
}
//--custom adapter class
public class ImageAdapter extends BaseAdapter{
Context context;
public ImageAdapter(Context localContext){
context = localContext;}
public int getCount() {
return cursor.getCount();
}
public Object getItem(int position) {
return position;
}
public long getItemId(int position) {
return position;
}
#Override
public View getView(int position, View convertView, ViewGroup parent){
final ImageView picturesView;
if (convertView == null){
picturesView = new ImageView(context);
cursor.moveToPosition(position);
int imageID = cursor.getInt(columnIndex);
picturesView.setImageURI(Uri.withAppendedPath(MediaStore.Images.Thumbnails.EXTER
NAL_CONTENT_URI,"" + imageID));
picturesView.setScaleType(ImageView.ScaleType.FIT_XY);
picturesView.setPadding(5, 5, 5, 5);
Display display = getWindowManager().getDefaultDisplay();
int width = display.getWidth() / 3;
picturesView.setLayoutParams(new GridView.LayoutParams(width, width));
} else {
picturesView = (ImageView) convertView;
}
return picturesView;
}//get view
}//image adapter

try this, I think since you are updating the image view only if convertview == null, when the view gets recycled it seems you are not updating the imageview, try replacing your getView() with this
#Override
public View getView(int position, View convertView, ViewGroup parent) {
ImageView pictures;
if (convertView == null)
pictures = new ImageView(context);
convertView.setTag(pictures);
} else {
pictures = (ImageView) convertView.getTag();
}
cursor.moveToPosition(position);
int imageID = cursor.getInt(columnIndex);
picturesView.setImageURI(Uri.withAppendedPath(MediaSt‌​ore.Images.Thumbnails.EXTERNAL_CONTENT_URI, "" + imageID));
picturesView.setScaleType(ImageView.ScaleType.FIT_XY);
picturesView.setPadding(5, 5, 5, 5);
return picturesView;
}//get view

OnClick goto new Activity in GridView Android

I take a photo from the camera and store them in a GridView, now when i view them there is no OnClick function to Enlarge or Goto new Activity to Enlarge the selected image, Here's the code:
Where to implement the OnClick method to take the selected image to a new Activity and enlarge it
package com.example.veeresh.myphotogallery;
public class Photo_1 extends AppCompatActivity implements OnClickListener {
Button captureBtn = null;
final int CAMERA_CAPTURE = 1;
private Uri picUri;
private DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
private GridView grid;
private List<String> listOfImagesPath;
private String path;
private String pathMusic;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_photo);
int pos = 0;
path = " ";
pathMusic = getIntent().getStringExtra("Store to Music");
if(pathMusic != null)
{
path = pathMusic;
}
captureBtn = (Button) findViewById(R.id.capture_btn1);
captureBtn.setOnClickListener(this);
grid = (GridView) findViewById(R.id.gridviewimg);
listOfImagesPath = null;
listOfImagesPath = RetriveCapturedImagePath();
if (listOfImagesPath != null) {
grid.setAdapter(new ImageListAdapter(this, listOfImagesPath));
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
#Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
if (arg0.getId() == R.id.capture_btn1) {
try {
//use standard intent to capture an image
Intent captureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
//we will handle the returned data in onActivityResult
Toast.makeText(this, "Launching Camera", Toast.LENGTH_SHORT).show();
startActivityForResult(captureIntent, CAMERA_CAPTURE);
} catch (ActivityNotFoundException anfe) {
//display an error message
String errorMessage = "Whoops - your device doesn't support capturing images!";
Toast toast = Toast.makeText(this, errorMessage, Toast.LENGTH_SHORT);
toast.show();
}
}
}
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == RESULT_OK) {
//user is returning from capturing an image using the camera
if (requestCode == CAMERA_CAPTURE) {
Bundle extras = data.getExtras();
Bitmap thePic = extras.getParcelable("data");
String imgcurTime = dateFormat.format(new Date());
File imageDirectory = new File(path);
imageDirectory.mkdirs();
String _path = path + imgcurTime + ".jpg";
try {
FileOutputStream out = new FileOutputStream(_path);
thePic.compress(Bitmap.CompressFormat.JPEG, 90, out);
out.close();
} catch (FileNotFoundException e) {
e.getMessage();
} catch (IOException e) {
e.printStackTrace();
}
listOfImagesPath = null;
listOfImagesPath = RetriveCapturedImagePath();
if (listOfImagesPath != null) {
grid.setAdapter(new ImageListAdapter(this, listOfImagesPath));
}
}
}
}
private List<String> RetriveCapturedImagePath() {
List<String> tFileList = new ArrayList<String>();
File f = new File(path);
if (f.exists()) {
File[] files = f.listFiles();
Arrays.sort(files);
for (int i = 0; i < files.length; i++) {
File file = files[i];
if (file.isDirectory())
continue;
tFileList.add(file.getPath());
}
}
return tFileList;
}
public class ImageListAdapter extends BaseAdapter {
private Context context;
private List<String> imgPic;
public ImageListAdapter(Context c, List<String> thePic) {
context = c;
imgPic = thePic;
}
public int getCount() {
if (imgPic != null)
return imgPic.size();
else
return 0;
}
//---returns the ID of an item---
public Object getItem(int position) {
return position;
}
public long getItemId(int position) {
return position;
}
//---returns an ImageView view---
public View getView(int position, View convertView, ViewGroup parent)
{
ImageView imageView;
BitmapFactory.Options bfOptions = new BitmapFactory.Options();
bfOptions.inDither = false; //Disable Dithering mode
bfOptions.inPurgeable = true; //Tell to gc that whether it needs free memory, the Bitmap can be cleared
bfOptions.inInputShareable = true; //Which kind of reference will be used to recover the Bitmap data after being clear, when it will be used in the future
bfOptions.inTempStorage = new byte[32 * 1024];
if (convertView == null) {
imageView = new ImageView(context);
imageView.setLayoutParams(new GridView.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT));
imageView.setPadding(0, 0, 0, 0);
} else {
imageView = (ImageView) convertView;
}
FileInputStream fs = null;
Bitmap bm;
try {
fs = new FileInputStream(new File(imgPic.get(position).toString()));
if (fs != null) {
bm = BitmapFactory.decodeFileDescriptor(fs.getFD(), null, bfOptions);
imageView.setImageBitmap(bm);
imageView.setId(position);
imageView.setLayoutParams(new GridView.LayoutParams(300, 600));
}
} catch (IOException e) {
e.printStackTrace();
} finally {
if (fs != null) {
try {
fs.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
return imageView;
}
}
}

Use setOnItemClickListener of girdview.
grid = (GridView) findViewById(R.id.gridviewimg);
grid.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
// TODO Auto-generated method stub
Toast.makeText(this, "you clicked at : " + position, Toast.LENGTH_LONG).show();
// put your intent here to open activity
}
});

put this code inside your onCreate(...) method.
grid.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
// do your stuff.
}
});

android custom listview with gallery images

I'm trying to add all the images contained in a folder in my custom listview, where I show a thumbnail of the photo and a little description.
I've found a lot of examples showing images from URL or drawable folder in Android Studio, but nothing working for me that loads a picture located in /storage/emulated/0/DCIM/Camera/AAAAMMGG_HHMMSS.jpg
Here is my code - MainActivity:
import android.content.ContentValues;
public class MainActivity extends ActionBarActivity implements OnClickListener {
public int PHOTO_REQUEST_CODE = 1;
private Uri fileUri;
private ArrayAdapter<String> adapter;
TextView ceScanResults;
ImageButton btnScan;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Set a toolbar to replace the action bar.
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
View addButton = findViewById(mci);
ArrayList<ListItem> listData = getListData();
final ListView listView = (ListView) findViewById(R.id.custom_list);
listView.setAdapter(new CustomListAdapter(this, listData));
listView.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> a, View v, int position, long id) {
ListItem newsData = (ListItem) listView.getItemAtPosition(position);
Toast.makeText(MainActivity.this, "Selected :" + " " + newsData, Toast.LENGTH_LONG).show();
}
});
initViews();
}
private ArrayList<ListItem> getListData() {
ArrayList<ListItem> listMockData = new ArrayList<ListItem>();
String[] images = getResources().getStringArray(R.array.images_array);
String[] headlines = getResources().getStringArray(R.array.headline_array);
for (int i = 0; i < images.length; i++) {
ListItem newsData = new ListItem();
newsData.setUrl(images[i]);
newsData.setHeadline(headlines[i]);
newsData.setReporterName("CE code");
newsData.setDate("28/07/2015 - 10:31");
listMockData.add(newsData);
}
return listMockData;
}
private void initViews() {
//ceScanResults = (TextView) findViewById(R.id.ceResults);
btnScan = (ImageButton) findViewById(R.id.mci);
btnScan.setOnClickListener(this);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
//getMenuInflater().inflate(R.menu.main, menu);
return true;
}
private void initGalleryFetchImage() {
Intent i = new Intent(
Intent.ACTION_PICK,
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(i, RESULT_OK);
}
#Override
public void onActivityResult(int requestCode, int resultCode, Intent intent) {
super.onActivityResult(requestCode, resultCode, intent);
Uri selectedImageUri = null;
String filePath = null;
if (requestCode == 1 && resultCode == RESULT_OK ) {
Uri selectedImage = intent.getData();
String[] filePathColumn = { MediaStore.Images.Media.DATA };
try {
Bitmap bmp = BitmapFactory.decodeStream(getContentResolver()
.openInputStream(selectedImage));
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if (resultCode == RESULT_OK) {
if (requestCode == 1) {
if (resultCode == RESULT_OK) {
//use imageUri here to access the image
selectedImageUri = fileUri;
} else if (resultCode == RESULT_CANCELED) {
Toast.makeText(this, "Picture was not taken", Toast.LENGTH_SHORT).show();
} else {
Toast.makeText(this, "Picture was not taken", Toast.LENGTH_SHORT).show();
}
} else if (requestCode == 2) {
selectedImageUri = intent.getData();
}
if(selectedImageUri != null){
try {
// OI FILE Manager
String filemanagerstring = selectedImageUri.getPath();
// MEDIA GALLERY
String selectedImagePath = getPath(selectedImageUri);
if (selectedImagePath != null) {
filePath = selectedImagePath;
} else if (filemanagerstring != null) {
filePath = filemanagerstring;
} else {
Toast.makeText(getApplicationContext(), "Unknown path",
Toast.LENGTH_LONG).show();
Log.e("Bitmap", "Unknown path");
}
if (filePath != null) {
decodeFile(filePath);
} else {
// bitmap = null;
}
} catch (Exception e) {
Toast.makeText(getApplicationContext(), "Internal error",
Toast.LENGTH_LONG).show();
Log.e(e.getClass().getName(), e.getMessage(), e);
}
}
}
}
public String getPath(Uri uri) {
String res = null;
String[] proj = { MediaStore.Images.Media.DATA };
Cursor cursor = getContentResolver().query(uri, proj, null, null, null);
if(cursor.moveToFirst()){;
int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
res = cursor.getString(column_index);
}
cursor.close();
return res;
}
#Override
public void onClick(View v) {
if (v.getId() == R.id.mci) {
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri);
startActivityForResult(intent, PHOTO_REQUEST_CODE);
String fileName = "new-photo-name.jpg";
//create parameters for Intent with filename
ContentValues values = new ContentValues();
values.put(MediaStore.Images.Media.TITLE, fileName);
values.put(MediaStore.Images.Media.DESCRIPTION,"Image captured by camera");
//imageUri is the current activity attribute, define and save it for later usage (also in onSaveInstanceState)
//create new Intent
startActivityForResult(intent, 1);
fileUri = getContentResolver().insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);
}
}
public void decodeFile(String filePath) {
// Decode image size
BitmapFactory.Options o = new BitmapFactory.Options();
o.inJustDecodeBounds = true;
try ( InputStream is = new URL(filePath).openStream() ) {
Bitmap bitmap = BitmapFactory.decodeStream( is );
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
// The new size we want to scale to
final int REQUIRED_SIZE = 1024;
// Find the correct scale value. It should be the power of 2.
int width_tmp = o.outWidth, height_tmp = o.outHeight;
int scale = 1;
while (true) {
if (width_tmp < REQUIRED_SIZE && height_tmp < REQUIRED_SIZE)
break;
width_tmp /= 2;
height_tmp /= 2;
scale *= 2;
}
}
}
And the code of my CustomListAdapter:
public class CustomListAdapter extends BaseAdapter {
private ArrayList<ListItem> listData;
private LayoutInflater layoutInflater;
public CustomListAdapter(Context context, ArrayList<ListItem> listData) {
this.listData = listData;
layoutInflater = LayoutInflater.from(context);
}
#Override
public int getCount() {
return listData.size();
}
#Override
public Object getItem(int position) {
return listData.get(position);
}
#Override
public long getItemId(int position) {
return position;
}
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null) {
convertView = layoutInflater.inflate(R.layout.list_row_layout, null);
holder = new ViewHolder();
holder.headlineView = (TextView) convertView.findViewById(R.id.title);
holder.reporterNameView = (TextView) convertView.findViewById(R.id.reporter);
holder.reportedDateView = (TextView) convertView.findViewById(R.id.date);
holder.imageView = (ImageView) convertView.findViewById(R.id.thumbImage);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
ListItem newsItem = listData.get(position);
holder.headlineView.setText(newsItem.getHeadline());
holder.reporterNameView.setText("" + newsItem.getReporterName());
holder.reportedDateView.setText(newsItem.getDate());
if (holder.imageView != null) {
new ImageDownloaderTask(holder.imageView).execute(newsItem.getUrl());
}
return convertView;
}
static class ViewHolder {
TextView headlineView;
TextView reporterNameView;
TextView reportedDateView;
ImageView imageView;
}
}
My class ImageDownloaderTask:
class ImageDownloaderTask extends AsyncTask<String, Void, Bitmap> {
private final WeakReference<ImageView> imageViewReference;
public ImageDownloaderTask(ImageView imageView) {
imageViewReference = new WeakReference<ImageView>(imageView);
}
#Override
protected Bitmap doInBackground(String... params) {
return downloadBitmap(params[0]);
}
#Override
protected void onPostExecute(Bitmap bitmap) {
if (isCancelled()) {
bitmap = null;
}
if (imageViewReference != null) {
ImageView imageView = imageViewReference.get();
if (imageView != null) {
if (bitmap != null) {
imageView.setImageBitmap(bitmap);
} else {
Drawable placeholder = imageView.getContext().getResources().getDrawable(R.drawable.placeholder);
imageView.setImageDrawable(placeholder);
}
}
}
}
private Bitmap downloadBitmap(String url) {
HttpURLConnection urlConnection = null;
try {
URL uri = new URL(url);
urlConnection = (HttpURLConnection) uri.openConnection();
int statusCode = urlConnection.getResponseCode();
if (statusCode != HttpStatus.SC_OK) {
return null;
}
InputStream inputStream = urlConnection.getInputStream();
if (inputStream != null) {
Bitmap bitmap = BitmapFactory.decodeStream(inputStream);
return bitmap;
}
} catch (Exception e) {
urlConnection.disconnect();
Log.w("ImageDownloader", "Error downloading image from " + url);
} finally {
if (urlConnection != null) {
urlConnection.disconnect();
}
}
return null;
}
}
My ListItem.xml:
<?xml version="1.0" encoding="UTF-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<ImageView
android:id="#+id/image"
android:layout_width="40dp"
android:layout_height="40dp"
android:layout_margin="5dp"
android:contentDescription="icon"
/>
<TextView
android:id="#+id/title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium"
/>
</LinearLayout>
Thanks a lot for your precious support!
Greetings,
Michele.

I'm using this library to load images from an URL
https://github.com/thest1/LazyList

try using code like this in Your adapter:
File img = new File("/sdcard/image.jpg");
if(img.exists()){
Bitmap bitmap = BitmapFactory.decodeFile(img.getAbsolutePath());
holder.imageView.setImageBitmap(bitmap);
}

Check when onClick is checked only?

I have a checkbox, that when checked, makes a bitmap and then saves that bitmap to internal storage. Then, in a gridView adapter, I have it check for the bitmap from internal storage with FileInputstream.
The issue is that the checkbox's onClick method is also in a class that extends baseadapter.
With the way it is now, when I start my app, it automatically checks for the bitmap and then returns a FileNotFound exception and then the onClick of the checkbox doesn't do anything.
I thought about this and realized that the reason it checks for it is that it is creating the gridView when I first open my app (which it is supposed to). In other words, it checks for the file because it is in the getView() method of my gridView adapter:
#Override
public View getView(int position, View convertView, ViewGroup parent) {
// Try to reuse the views
ImageView view = (ImageView) convertView;
// if convert view is null then create a new instance else reuse it
if (view == null) {
view = new ImageView(Context);
Log.d("GridViewAdapter", "new imageView added");
}
try {
Bitmap bitmapA = null;
FileInputStream in = Context.openFileInput("bitmapA");
bitmapA = BitmapFactory.decodeStream(in);
in.close();
/*BufferedInputStream buf = new BufferedInputStream(in);
byte[] bitMapA = new byte[buf.available()];
buf.read(bitMapA);
Bitmap bM = BitmapFactory.decodeByteArray(bitMapA, 0, bitMapA.length);
*/view.setImageBitmap(bitmapA);
if (in != null) {
in.close();
}
/*if (buf != null) {
buf.close();
}*/
} catch (Exception e) {
e.printStackTrace();
}
view.setImageResource(drawables.get(position));
view.setScaleType(ImageView.ScaleType.CENTER_CROP);
view.setLayoutParams(new android.widget.GridView.LayoutParams(70, 70));
view.setTag(String.valueOf(position));
return view;
}
Is there a way that I can make it check internal storage ONLY IF the checkbox is checked?
Please note that the onClick method of the checkbox is in one class while I am getting the bitmap in another.
Here are my two full classes:
AppInfoAdapter (the one with the onClick method---I will only post the needed coding here):
package com.example.awesomefilebuilderwidget;
IMPORTS
public class AppInfoAdapter extends BaseAdapter {
private Context mContext;
private List<ResolveInfo> mListAppInfo;
private PackageManager mPackManager;
private List<ResolveInfo> originalListAppInfo;
private Filter filter;
private String fname;
public AppInfoAdapter(Context c, List<ResolveInfo> listApp,
PackageManager pm) {
mContext = c;
this.originalListAppInfo = this.mListAppInfo = listApp;
mPackManager = pm;
Log.d("AppInfoAdapter", "top");
}
#Override
public int getCount() {
Log.d("AppInfoAdapter", "getCount()");
return mListAppInfo.size();
}
#Override
public Object getItem(int position) {
Log.d("AppInfoAdapter", "getItem");
return mListAppInfo.get(position);
}
#Override
public long getItemId(int position) {
Log.d("AppInfoAdapter", "getItemId");
return position;
}
public static Bitmap scaleDownBitmap(Bitmap default_b, int newHeight, Context c) {
final float densityMultiplier = c.getResources().getDisplayMetrics().density;
int h= (int) (100*densityMultiplier);
int w= (int) (h * default_b.getWidth()/((double) default_b.getHeight()));
default_b=Bitmap.createScaledBitmap(default_b, w, h, true);
// TO SOLVE LOOK AT HERE:http://stackoverflow.com/questions/15517176/passing-bitmap-to-other-activity-getting-message-on-logcat-failed-binder-transac
return default_b;
}
public void SaveImage(Bitmap default_b) {
String root = Environment.getExternalStorageDirectory().toString();
File myDir = new File(root + "/saved_images");
myDir.mkdirs();
Random generator = new Random();
int n = 100000;
n = generator.nextInt(n);
String fname = "Image-" + n +".png";
File file = new File (myDir, fname);
Log.i("AppInfoAdapter", "" + file);
if (file.exists()) file.delete();
try {
// File f = new File(Environment.getExternalStorageDirectory().getAbsolutePath()
// + "/" + fname + ".png");
FileOutputStream out = mContext.getApplicationContext().openFileOutput("bitmapA", Context.MODE_WORLD_WRITEABLE);
// FileOutputStream out = new FileOutputStream(file);
default_b.compress(Bitmap.CompressFormat.PNG, 90, out);
out.flush();
out.close();
} catch (Exception e) {
e.printStackTrace();
}
}
#Override
public View getView(final int position, View convertView, ViewGroup parent) {
// get the selected entry
final ResolveInfo entry = (ResolveInfo) mListAppInfo.get(position);
// reference to convertView
View v = convertView;
// inflate new layout if null
if (v == null) {
LayoutInflater inflater = LayoutInflater.from(mContext);
v = inflater.inflate(R.layout.layout_appinfo, null);
Log.d("AppInfoAdapter", "New layout inflated");
}
// load controls from layout resources
ImageView ivAppIcon = (ImageView) v.findViewById(R.id.ivIcon);
TextView tvAppName = (TextView) v.findViewById(R.id.tvName);
TextView tvPkgName = (TextView) v.findViewById(R.id.tvPack);
final CheckBox addCheckbox = (CheckBox) v
.findViewById(R.id.addCheckbox);
Log.d("AppInfoAdapter", "Controls from layout Resources Loaded");
// set data to display
ivAppIcon.setImageDrawable(entry.loadIcon(mPackManager));
tvAppName.setText(entry.activityInfo.loadLabel(mPackManager));
tvPkgName.setText(entry.activityInfo.packageName);
Log.d("AppInfoAdapter", "Data Set To Display");
addCheckbox
.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (addCheckbox.isChecked()) {
System.out.println("Checked");
PackageManager pm = mContext.getPackageManager();
Drawable icon = null;
try {
icon = pm
.getApplicationIcon(entry.activityInfo.packageName);
} catch (NameNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
Drawable default_icon = pm.getDefaultActivityIcon();
if (icon instanceof BitmapDrawable
&& default_icon instanceof BitmapDrawable) {
BitmapDrawable icon_bd = (BitmapDrawable) icon;
Bitmap icon_b = icon_bd.getBitmap();
BitmapDrawable default_bd = (BitmapDrawable) pm
.getDefaultActivityIcon();
Bitmap default_b = default_bd.getBitmap();
if (icon_b == default_b) {
// It's the default icon
scaleDownBitmap(default_b, 100, v.getContext());
Log.d("AppInfoAdapter", "Scale Bitmap Chosen");
SaveImage(default_b);
Log.d("AppInfoAdapter", "Scaled BM saved to External Storage");
Intent intent = new Intent(v.getContext(), GridViewAdapter.class);
// intent.hasExtra("bitmapA");
v.getContext().startActivity(intent);
Log.d("AppInfoAdapter", "Intent started to send Bitmap");
}
}
} else {
System.out.println("Un-Checked");
}
}
});
// return view
return v;
}
GridViewAdapter:
package com.example.awesomefilebuilderwidget;
IMPORTS
public class GridViewAdapter extends BaseAdapter {
private Context Context;
// Keep all Images in array list
public ArrayList<Integer> drawables = new ArrayList<Integer>();
// Constructor
public GridViewAdapter(Context c){
Context = c;
Log.d("GridViewAdapter", "Constructor is set");
drawables.add(R.drawable.pattern1);
Log.d("GridViewAdapter", "pattern1 added");
drawables.add(R.drawable.pattern2);
Log.d("GridViewAdapter", "pattern2 added");
drawables.add(R.drawable.trashcan);
Log.d("GridViewAdapter", "trashcan added");
drawables.add(R.drawable.ic_launcher);
Log.d("GridViewAdapter", "ic_launcher added");
Bitmap default_b = BitmapFactory.decodeFile("picture");
}
#Override
// How many items are in the data set represented by this Adapter
public int getCount() {
return drawables.size();
}
#Override
// Get the data item associated with the specified position in the
// data set
public Object getItem(int position) {
return drawables.get(position);
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
// Try to reuse the views
ImageView view = (ImageView) convertView;
// if convert view is null then create a new instance else reuse it
if (view == null) {
view = new ImageView(Context);
Log.d("GridViewAdapter", "new imageView added");
}
try {
Bitmap bitmapA = null;
FileInputStream in = Context.openFileInput("bitmapA");
bitmapA = BitmapFactory.decodeStream(in);
in.close();
/*BufferedInputStream buf = new BufferedInputStream(in);
byte[] bitMapA = new byte[buf.available()];
buf.read(bitMapA);
Bitmap bM = BitmapFactory.decodeByteArray(bitMapA, 0, bitMapA.length);
*/view.setImageBitmap(bitmapA);
if (in != null) {
in.close();
}
/*if (buf != null) {
buf.close();
}*/
} catch (Exception e) {
e.printStackTrace();
}
view.setImageResource(drawables.get(position));
view.setScaleType(ImageView.ScaleType.CENTER_CROP);
view.setLayoutParams(new android.widget.GridView.LayoutParams(70, 70));
view.setTag(String.valueOf(position));
return view;
}
}
FURTHER UPDATED CODING:
#Override
public View getView(int position, View convertView, ViewGroup parent) {
// Try to reuse the views
ImageView view = (ImageView) convertView;
boolean checked = (mCheckBox==null)?false:(((CheckBox) mCheckBox).isChecked());
// if convert view is null then create a new instance else reuse it
if (view == null) {
view = new ImageView(Context);
Log.d("GridViewAdapter", "new imageView added");
}
if(checked = true){
try {
Bitmap bitmapA = null;
FileInputStream in = Context.openFileInput("bitmapA");
bitmapA = BitmapFactory.decodeStream(in);
in.close();
/*BufferedInputStream buf = new BufferedInputStream(in);
byte[] bitMapA = new byte[buf.available()];
buf.read(bitMapA);
Bitmap bM = BitmapFactory.decodeByteArray(bitMapA, 0, bitMapA.length);
*/view.setImageBitmap(bitmapA);
if (in != null) {
in.close();
}
/*if (buf != null) {
buf.close();
}*/
} catch (Exception e) {
e.printStackTrace();
}}
PLUS I ADDED THIS METHOD:
public void setCheckBox(CheckBox checkbox){
mCheckBox=checkbox;
}
AND THIS VARIABLE:
CheckBox mCheckBox=null;

You dont need to listen to the onClick event in the adapter.
Instead, you can read the checkbox status.
for this, in your adapter, you add a field and a setter:
CheckBox mCheckBox=null;
public void setCheckBox( CheckBox checkbox){
mCheckBox=checkbox;
}
and then, in the getView(), you add thiss line at the begining;
boolean checked = (mCheckBox==null)?false:(((CheckBox) mCheckBox).isChecked());
UPDATE
then in your activity, i suppose you have something like
GridViewAdapter mGridViewAdapter= new GridViewAdapter(this);
so, below you have to add:
CheckBox mCheckBox = findViewById(R,id.YOURCHECKBOXID);
mGridViewAdapter.setCheckBox(mCheckBox);
And that's it!