imageview

问题 I am using ImageView.onTouch() . I am returning false for ACTION_MOVE but still the onTouch() event is consumed. imageView.setOnTouchListener(new View.OnTouchListener() { @Override public boolean onTouch(View v, MotionEvent ev) { System.out.println("jan25 iv onTouch"); if (ev.getActionMasked()==MotionEvent.ACTION_DOWN) { System.out.println("jan25 iv ACTION_DOWN"); return true; } if (ev.getActionMasked()==MotionEvent.ACTION_MOVE){ System.out.println("jan25 iv ACTION_MOVE"); return false; } if

问题 What was my mistake? How I show png from FTP? I'm newby for android and try to show image from difference connection/source. Then I already show image which load from drawable and HTTP. Now, I'm try to show from FTP, I get message "--- decoder->decode returned false" when I use.. BitmapFactory.decodeStream(ins, null, options); Then I found solution.. static class FlushedInputStream extends FilterInputStream { public FlushedInputStream(InputStream inputStream) { super(inputStream); } @Override

问题 I am using scene builder to create my GUI and I am displaying Image s as users select items in a list. The Image s are of different sizes and when an Image that is smaller than the pane it is in, the image is displayed in the top left of the pane. How do I go about getting the ImageView and/or Image to be displayed in the center of the Pane ? I've looked throughout the javafx imageview and image APIs but I haven't found much on centering the ImageView in a Pane . I haven't seen anything in

问题 When I use android:adjustViewBounds="true" in my imageView xml, it does not function. If I put setAdjustViewBounds(true); in the constructors of my ImageView, it works fine. What is the difference, or is this a bug? <ImageView android:id="@+id/PageViewMainImage" android:layout_width="wrap_content" android:layout_height="wrap_content" android:scaleType="matrix" android:adjustViewBounds="true" android:visibility="invisible"/> 回答1: The order of operations in the ImageView constructor (see source

问题 When I use android:adjustViewBounds="true" in my imageView xml, it does not function. If I put setAdjustViewBounds(true); in the constructors of my ImageView, it works fine. What is the difference, or is this a bug? <ImageView android:id="@+id/PageViewMainImage" android:layout_width="wrap_content" android:layout_height="wrap_content" android:scaleType="matrix" android:adjustViewBounds="true" android:visibility="invisible"/> 回答1: The order of operations in the ImageView constructor (see source

问题 I'm trying to save an image from ImageView to devices gallery. I tried this code Code Edit: URL url = new URL(getIntent().getStringExtra("imageURL")); File f = new File(url.getPath()); addImageToGallery(f.getPath(), this); public static void addImageToGallery(final String filePath, final Context context) { ContentValues values = new ContentValues(); values.put(MediaStore.Images.Media.DATE_TAKEN, System.currentTimeMillis()); values.put(MediaStore.Images.Media.MIME_TYPE, "image/jpeg"); values

问题 I want to display an image which is saved into database in blob form on my Android. I am using ImageView as image container. Please suggest me something soon. Regards, Rahul 回答1: Basically there are two options: Buffer read from BLOB wrap in InputStream so you will have InputStream which will point to BLOB data Save BLOB data to temporary file open it as FileInputStream - so in the end you'll again have stream over image data in both cases you can easily convert InputStream to bitmat data in

问题 I want to display an image which is saved into database in blob form on my Android. I am using ImageView as image container. Please suggest me something soon. Regards, Rahul 回答1: Basically there are two options: Buffer read from BLOB wrap in InputStream so you will have InputStream which will point to BLOB data Save BLOB data to temporary file open it as FileInputStream - so in the end you'll again have stream over image data in both cases you can easily convert InputStream to bitmat data in

问题 I want to display an image which is saved into database in blob form on my Android. I am using ImageView as image container. Please suggest me something soon. Regards, Rahul 回答1: Basically there are two options: Buffer read from BLOB wrap in InputStream so you will have InputStream which will point to BLOB data Save BLOB data to temporary file open it as FileInputStream - so in the end you'll again have stream over image data in both cases you can easily convert InputStream to bitmat data in

问题 I got an error with my android application. I want to use a viewPager as an android image slider, for this I got my AndroidImageAdapter.java, but when it comes to the method instantiateItem the application aborts and I don't know how to fix it. I already looked up the failure and added android:hardwareAccelerated="false" android:largeHeap="true" to my manifest, but it still remains. Here is the complete error code: java.lang.OutOfMemoryError: Failed to allocate a 571401228 byte allocation