imageview

I'm trying to implement a simple colorfilter on an imageview to turn the black image into a white image. In order to achieve that I do the following: weatherImg.setColorFilter(Color.BLACK, PorterDuff.Mode.MULTIPLY); weatherImg.setImageResource(R.drawable.b_clouded_rain); I've also tried to change to color in the color filter to red and white but all of them have no effect, what am I doing wrong? As much as I hate to answer my own questions I found the problem: I should've used: weatherImg.setColorFilter(Color.WHITE, PorterDuff.Mode.SRC_ATOP); It depends on what kind of filtering you want to

In my app I want to draw line on imageview along with finger. I want the output like the following: In this screen fish is the imageview and red lines are drawing lines. So I followed the link below to develop the app link . This is my code: public void onCreate(Bundle savedInstanceState){ super.onCreate(savedInstanceState); setContentView(R.layout.addphoto); btnAddPhoto=(Button)findViewById(R.id.add); btnEdit=(Button)findViewById(R.id.edit); imageView=(ImageView)findViewById(R.id.photo); btnAddPhoto.setOnClickListener(this); btnEdit.setOnClickListener(this); imageView.setOnTouchListener(this)

I have to transfer the image from one activity to another. In first activity the user selects the image out of several images from scroll view and that image has to be displayed in the imageview of next activity. Help required. In your first Activity Convert ImageView to Bitmap imageView.buildDrawingCache(); Bitmap bitmap = imageView.getDrawingCache(); Intent intent = new Intent(this, NewActivity.class); intent.putExtra("BitmapImage", bitmap); In second Activity Bitmap bitmap = (Bitmap) intent.getParcelableExtra("BitmapImage"); Then display bitmap in ImageView. Note: this is not recommended.

I want my circle image (ImageView) to rotate as the user touch and drag it. If the user drags it to the right, it should spin right and vice versa. Like when you spin a DJ disc, if you know what i mean. I've played around a bit with OnTouchListener and RotateAnimation but i'm getting nowhere. Any ideas? Let's assume you have ImageView mCircle which you want to rotate. You have to use RotateAnimation to rotate it. In OnTouch method determine the angle where user's finger is. For example, in your main activity do the following private ImageView mCircle; private double mCurrAngle = 0; private

I need to drag and select a portion of an image set in an ImageView and retrieve the end points of the selected rectangle without causing any modifications (such as crop). So far all I've been able to do is figure out the co-ordinates of the point where the user taps the screen. ImageView imageView = (ImageView) findViewById(R.id.imageView); imageView.setOnTouchListener(new View.OnTouchListener() { @Override public boolean onTouch(View v, MotionEvent event) { //Simply displays a toast Utilities.displayToast(getApplicationContext(), "Touch coordinates : " + String.valueOf(event.getX()) + "x" +

I have a list of entries and some bitmap files in the res/drawable-mdpi directory. I'm trying to load the image corresponding to the string value selected from the list by generating a path string and using bitmap factory. The problem is I don't think my path is right because the bitmap is always null, even for the default image. String name = entries.get(position); String img = "res/drawable/logo_" + name.toLowerCase() + ".png"; // create the file name icon.setScaleType(ImageView.ScaleType.CENTER_CROP); // check to see if the file exists File file = new File(img); if (file.exists()){ bm =

What is the difference between setImageBitmap and setImageDrawable ? I have an image which I would like to set dynamically from file. The tutorial that I followed says to convert my Bitmap to a BitmapDrawable then set it using setImageDrawable . I've notice that setting the Bitmap directly with setImageBitmap also works but I don't notice any difference. Bitmap image = BitmapFactory.decodeFile(imgFile.getAbsolutePath()); BitmapDrawable bitmapDrawable = new BitmapDrawable(image); imageView.setImageDrawable(bitmapDrawable); OR Bitmap image = BitmapFactory.decodeFile(imgFile.getAbsolutePath());