How to set imageview null in android. I've seen weird bugs caused by rooted people movi...

How to set imageview null in android. I've seen weird bugs caused by rooted people moving my app around and installing it as a 'system app'. ImageView. Create a layout and set its background to your shape drawable. The dalvik cache must've got out of date when they did that, and meant the resource IDs in the resource files didn't match what the java code expected. apply { setImageResource(R. GONE) or setVisibility (View. ScaleType) to determine how to fit the image within the bounds. Using setVisibility (View. setBackgroundColor (Color. Nov 29, 2025 · How to Set ImageView Image from String in Android: Fix BitmapFactory Null Resource Path Issue In Android development, setting an image in an ImageView is a common task. The method setImage() is saying the Imageview is a null objec May 21, 2013 · If you use the support library, you get AppCompatImageView instead of ImageView , which supports setImageResource(0) on all devices, so you should be fine with using it the same way as using setImageDrawable(null) and setImageBitmap(null) Otherwise, it should work fine starting from some Android version. What I've tried So far, the only solution that worked for me, is to set the imageView to the bottom (using the gravity set to bottom and center-horizontal), and use code, similar to this: Oct 29, 2015 · try setting a background color to the imageView e. . e findViewById was given the wrong ID) Sorry for the vague description, but if you can contact that user, ask them if they are doing ImageView アイコンのような任意の画像を表示できます。表示する画像は、 リソース や コンテント プロバイダ などから読み込みます。 このページの内容 クラス階層 View ImageView ImageButton ZoomButton QuickContactBadge 属性 I am having difficulty setting an ImageView with a string download url that is in a user object that came from the firebase storage DB. The method setImage() is saying the Imageview is a null objec Android TV All devices ⤵️ Libraries Browse API reference documentation with all the details. setImageBitmap(b); Question is - how to clear iview resources correctly (with or without destroying view) ? Would ImageView free it's resources (used in native code) after b. g (imgview. my_image) contentDescription = resources. Moreover, ImageView is also used to control the size and movement of an image. Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project. AnyClass. (i. In the example, using scaleType "center", the image will be displayed at its native resolution and centered in the view, regardless of how much space the view consumes. In Android, checking if an ImageView is null typically involves verifying if the reference to the ImageView object itself is null. Causes The ImageView is not updated when new images are requested, leading to stale images being displayed. According to the code of Android and according to my tests, I think it should be safe to Oct 18, 2015 · My imageview downloads images for students but when the student has no image I am trying to display a default image. my_image_desc) // set the ImageView bounds to match the Drawable's dimensions . To set an image to a fixed size, specify that size in the layout params and then use setScaleType(android. I am having difficulty setting an ImageView with a string download url that is in a user object that came from the firebase storage DB. However, challenges arise when the image source is provided as a string (e. xml. Solutions Instead of making the ImageView invisible, use the method `setImageBitmap (null)` to clear the image while keeping the ImageView active. drawable. Or you can initialize your game_pic somewhere in, for example, onCreateView method and therefore initialize your mMoviesBooksGames after that. Android platform Jetpack libraries Compose libraries Google Play services ↗️ Google Play SDK index ↗️ Google Play Dec 2, 2013 · It seems as if ImageView misses some important ScaleType values. Aug 18, 2020 · Construct ImageView and set image resource on non-null instance. I have tried two things I thought should work, set a default image, or the code below. rgb (95, 87, 87));) other wise if you only want image as a placeholderset set a default image in your xml imageview and replace the image with code as you have above in your Q Jun 27, 2024 · private lateinit var constraintLayout: ConstraintLayout override fun onCreate(savedInstanceState: Bundle?) { super. Note the scaleType attribute which defines how the images will be scaled to fit in your layout. recycle()? I suppose, that ImageView doesn't just free it resources after Activity onStop (or onDestroy). Feb 29, 2012 · ImageView iview; //some ImageView Bitmap b; //some Bitmap iview. g. This example demonstrates how do I set margin of ImageView using code in android. INVISIBLE) disables touch events, preventing user interactions. onCreate(savedInstanceState) // Instantiate an ImageView and define its properties val i = ImageView(this). getString(R. Here's how you can validate if an ImageView object is null in your Android application: The ImageView handles all the loading and scaling of the image for you. widget. ImageView | API reference | Android Developers Skip to main content Jul 15, 2025 · ImageView class or android. Step 2 − Add the following code to res/layout/activity_main. view. View class which is the subclass of Kotlin. , a resource name, asset path, external storage path, or Base64 encoded data). Wrap that layout around your ImageView (with no padding) The ImageView (including anything else in the layout) will now display with rounded layout shape. Application of ImageView is also in applying tints to an image in order to reuse a drawable resource and create overlays on background images. ImageView inherits the android. string. pndae dtcqa ttud ohs ppjj svy uyjjo wfwfmf rlns gleen