imageview

I am getting Null Pointer Exception for ImageView imag = (ImageView) findViewById(R.id.image). I have custome layout declared in R.layout.screen3 with custome list declared in R.layout.custom_row_screen3 . Each row has few tasks and depending on their status an image is shown to right of each row. Please guide me in getting this resolved as I am new to android. here is my code below ::: public class screen3 extends ListActivity{ final ArrayList<HashMap<String, String>> list = new ArrayList<HashMap<String, String>>(); ... ... ... TextView tv; ImageView imag; @Override public void onCreate

Wondering if I'm going about this the right way or not. I have 3 buttons on my screen (Restart, Previous, Next). When the view loads it shows the first image which is fine. When I click the "Next" button I want it to load a second image and so on for up to 9 images. If I click the "Previous" button it should go back one image. Clicking "Restart" should go to the first image. I have the Restart one working. I'm having trouble with the Next button because it only shows the second image (I think because my "a" variable is initialized at 0). Here's my code. Grateful to anyone that can help. public

I have an application which draws an image from the file system to screen like so: Bitmap image = BitmapFactory.decodeFile(file.getPath()); imageView.setImageBitmap(image); If the image is very large I see this error: java.lang.RuntimeException: Canvas: trying to draw too large(213828900bytes) bitmap. at android.view.DisplayListCanvas.throwIfCannotDraw(DisplayListCanvas.java:260) at android.graphics.Canvas.drawBitmap(Canvas.java:1415) ... The stack does not reach my code. How can I catch this error? Or is there a more appropriate way to be drawing the image to the imageView that can avoid this

I have built my application using scenebuilder for javafx. I have a form where a person has to upload an image. I used this code public void photoChooser(ActionEvent evt) { System.out.println("photoChooser method is called"); try{ FileChooser fileChooser= new FileChooser(); fileChooser.setTitle("Choose a file"); File file = fileChooser.showOpenDialog(stagehere); if(file != null){ System.out.println(file); String img = file.toString(); //Image image = new ImageIcon(img); try{ // image= new Image(); Image image = new Image(img); } catch (Exception e) {System.out.println("Can't upload image " + e

I have problem when I try to display the image with full size. I tried to display image with wrap_content. But it is smaller real image. <ImageView android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@drawable/screen1_logo" /> I go to the properties of this image and see some information: dimentions 211 x 74. Then I try to display image with fixed width and height. I see it's bigger. <ImageView android:layout_width="211px" android:layout_height="74px" android:src="@drawable/screen1_logo" /> is it right way? do we must to fix size to display image with full

I have an ImageView in CardViews of my RecyclerView. I would like to catch the onClick on the ImageView, like I already did with the ListView. So, in the public void onBindViewHolder(RecyclerView.ViewHolder holder, final int position) I tried with: myViewHolder.imageView.setClickable(true); myViewHolder.imageView.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { Log.d("TEST", "Clicked"); } but this was totally ignored. The following code is working: myViewHolder.imageView.setImageResource(R.drawable.star_yellow); What can I do? Here's what I do in my