imageview

问题 I'm working on a drag and drop application, everything is working fine but I saw an issue. I have 3 ImageViews, two of them are draggable objects and the other one is the drop target. Every time I drop the object in any location other than the drop target, it's totally disappearing! Below is the code I used: ImageView iv1, iv2, iv3; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); initControls(); }

问题 I have an ImageView with scaletype set to matrix, and would like to get a Rect with the bounds of the image after the transformation of the matrix. How do I get such a rect? thanks. 回答1: ImageView imageView = (ImageView)findViewById(R.id.imageview); Drawable drawable = imageView.getDrawable(); Rect imageBounds = drawable.getBounds(); Then use Matrix.mapRect. 来源： https://stackoverflow.com/questions/8590693/android-how-to-get-bounds-of-imageview-with-matrix

问题 I have a UIImageView in a custom tableview cell. When I set the UIimageview property, the uiimageview.image is bigger than the uiimageview. Why? Here is the code: cell.imageView.image=[UIImage imageNamed:@"BlueMooseLogo.png"]; And here is a link to what the cell looks like. The blue square is the background of the imageview, and the blue moose is the image. https://docs.google.com/document/d/1G7BYCriYbSGYHryP5OI7XHuVpqRKiNcBrxdY14wDgoA/edit?usp=sharing If it's relevant, within interface

问题 I want to open an image in my drawable folder via default imageview applications of my phone (Gallery, etc.). My image location: drawable/image.png Code: Intent intent = new Intent(); intent.setAction(Intent.ACTION_VIEW); intent.setDataAndType(Uri.parse(""), "image/*"); startActivity(intent); What do I need to write in Uri.parse function to see the image file? 回答1: To do that you have to copy your image in drawable folder to SD card and then give the path of the file in SD card to intent.

问题 I have a constraint layout (alpha9) with views spread all over it, and I have one particular ImageView that I need to replicate and add more of like it. The layout is like so : The main purpose is to animate 5 of those "coin" imageViews when the button is pressed. The imageViews i need to generated sha'll have exact properties of the the imageView behind the Button down below (with same constraints) What i tried to do is the following : private ImageView generateCoin() { ImageView coin = new

问题 I put an image inside an ImageView and have multitouch implemented to resize and move the image inside the ImageView. Now I need to save the resized image to a image file. I have tried the .getDrawingCache() but that image have the size of the ImageView. I want the image to show what the ImageView shows but with full resolution (larger than the ImageView). Any ideas? 回答1: You could hold a Bitmap Object in Background, which you can resize with this piece of code: Matrix matrix = new Matrix();

问题 I'm currently developing a new app for the company I'm working at. We test this on multiple devices, now a strange thing I noticed the other day, well someone else did. My Colleague tested the app on his HTC one m8, and we have a background image on the login page but it didn't show for him. It did however on a Nexus 7, Samsung Galaxy Tab 4, Motorola G and Samsung S4. This might be very specific, but I guess some people must have noticed this kind of behaviour before on certain devices and

问题 I have a a set of 10 imageviews in my layout. I have given them sequential id's also as android:id="@+id/pb1" android:id="@+id/pb2" Now I want to change background dynamically. int totalPoi = listOfPOI.size(); int currentPoi = (j/totalPoi)*10; for (i=1;i<=currentPoi;i++) { imageview.setBackgroundResource(R.drawable.progressgreen); } Now inside the for loop I want to set the image view background dynamically. i,e if the currentpoi value is 3, background of 3 image views should be changed. What

问题 I have 1 activity, but would like to have multiple context menu's for different UI components. For example, I have a ListView which will react to: @Override public void onCreateContextMenu(ContextMenu menu, View v,ContextMenuInfo menuInfo) { super.onCreateContextMenu(menu, v, menuInfo); menu.setHeaderTitle("Selection Options"); menu.add(0, v.getId(), 0, "Remove"); } How can I create another context menu for the onClick event for an ImageView I have? 回答1: Actually, this method is to change the

问题 Since Google added the mipmap folder for the launcher icons, I have had issues using the drawables folder. I manually added the hdpi folders in the drawable folder, but when I try and add the src path, the images won't allow me to view and select them. How do I add an image in the drawable folder to an ImageView in Android Studio 1.2? 回答1: try with this way of code there are three ways to set image on ImageView imageView.setImageResource(R.drawable.play); or <ImageView android:id="@+id