Kotlin dp to px. dpToPx(context: Context): Float = (this * context.

Kotlin dp to px The sp unit is the same size as a dp, by default, but it resizes based on the user's preferred text size. so putting that confirms the result. If those methods was statics, you could have call it everytime like this: Util. black Convert (Float/Int) and (Dp/Px) to each other with Kotlin Extensions :) in android - MetricsUtil. Supporting Multiple Screens | Android Developers More Resource Types | Android Developers. fun Context. I have the code I stumbled upon this question from Google, and later on I found an easy solution valid for API >= 13. Commented Feb 8, 2017 at 8:37. This formula (px to dp): dp = (int)(px / (displayMetrics. The conversion of dp units to screen pixels is simple: px = dp * (dpi / 160) But I don't think that is what I need (and I don't know how to use this). You signed out in another tab or window. A. density val resizedInPx = (widthInDp * scale + 0. applyDimension Docs. You can use the following function: fun dpToPx(context: Context, dp: Float): Int { return TypedValue. 1. kt. Jul 11, 2011 · 160 dp * 1. getRawDimensionInDp(R. windowInsets. 0' } Step 3. getWindowManager(). The only solution i've found (it will not really help you :) ) is to set it in the Xml file. displayMetrics). densityDpi / 160)); does not work on sm All the answers here show a dp->px conversion rather than px->dp, which is what the OP asked for. You should actually convert the dp value that you want to pixels. dp or Density-Independent Pixels May 29, 2024 · Do keep in mind that the height and width we are getting here are in px!. 4285714. For example, for a device with density 420 and width in pixels of 1080, the width in dp = 1080 * 160/420 = 411. Dp to Px Kotlin Code. If your device has 2. Jun 6, 2022 · jetpack composeで dp to px および px to dpの変換処理の例があまりなかったのでメモに書いておきます。 本記事はcomposeのversion: 1. density) This extension function can be used Dec 6, 2011 · The formula is: px = dp * (dpi / 160), for having on a 160 dpi screen. That value is in the DisplayMetrics, that you can access from a Context: float pixels = dp * context. Ideally, you should create graphics for each of the folders so that Android can pick the best one based on the screen size and resolution. Below are some code snippets in Java and Kotlin that demonstrate how to convert pixels to dp and vice versa: Java Code // Converts 14 dip into its equivalent px float dip = 14f; Resources r = getResources(); float px = TypedValue. 15) =75(dpvalue) May 17, 2015 · Scale-independent Pixels – seperti satuan “dp”, namun satuan ukuran ini besarnya disesuaikan mengikuti ukuran font pada preferensi device pengguna. getDisplayMetrics(). You can convert by this. These units are relative to a 160 dpi (dots per inch) screen, on which 1 dp is roughly equal to 1 px. COMPLEX_UNIT_DIP,dpValue,Resources. COMPLEX_UNIT_DIP, value, r. Example is <TextView android:text = "Hello SSP" android:textSize = "@dimen Font size based on the screen size public static void applyFont(TextView tv, Float fontSize) { tv. px(m: DisplayMetrics!): Nov 6, 2024 · This Kotlin code defines a reusable function within a Fragment to display a Toast message. getColor(context, R. 0 brings * @param px A value in px (pixels) unit. We can get the pixels out of the dp’s integer value with this method: public static int dpToPx(int dp) {float density = Context. pxToDp(value: Float):Int{ val r: Resources = resources return TypedValue. I'd prefer don't write spec May 18, 2017 · KotlinのExtensionを利用して以下のようにdp, spに変換することができます。textView. Add a comment | Aug 14, 2018 · I need to convert scalable pixels (sp) to pixels programmatically in Android. screenHeightDp. getSystem(). Kotlin; extension function. Drawbitmap function I need to specify the pixels of the screen where I want to draw the image. 0 = 160 px 72 pt / 72 * 150 = 150 px The moral of the story is, dp keeps exact dimensions and helps keep performance, allowing some physical size variation depending on device density. COMPLEX_UNIT_DIP, dip, r. getDisplayMetrics()) ##KOTLIN Sep 17, 2023 · It returns a float value to represent px equivalent to dp depending on device density. dimen. * @param px A value in px (pixels) unit. SP, los píxeles de escala independient. Kotlin Extensions for convert some Int or Float in dp or px - dp_px. Feb 14, 2020 · with(CommonUtil) { 10. float dpRatio = context. applyDimension it’s really easy. toInt val screenHeight = (size. dp() px or Raw Pixels. dependencies { implementation 'com. Sep 14, 2022 · with the below helper function to convert the pixels to dps: fun pxToDp(context: Context, px: Float): Float { return px / context. applyDimension converts the desired padding into pixels appropriately depending on the current device's display properties. getDimensionPixelSize I got 144 pixels. pxToDp(120) dp * (metrics. 5); this may help u in converting pixels to dp –. You can get that density factor from Resources: context. 1 PX is equal to 1 DP in MDPI devices. 3. Oct 18, 2020 · My goal is to conver pixels to Dp, and margin it in DP value, not px. When running on a higher density screen, the number of pixels used to draw 1 dp is scaled up by a factor appropriate for the screen's dpi. here's a Kotlin extension function to convert pixels to dp. PX: is an abbreviation for Pixels, which specifies the actual pixels on the screen. Disarankan untuk menggunakan satuan ukuran ini sebagai ukuran font pada text yang ada di aplikasi Android kalian, sehingga ukuran text tersebut akan disesuaikan menurut screen density dan juga Jan 15, 2010 · If you get the sp size from your resources, you should use COMPLEX_UNIT_PX, like this: textView. Jun 11, 2023 · val windowManager = getSystemService (WINDOW_SERVICE) as WindowManager // 通常のActivityではなくServiceの場合のみ必要 val display = windowManager. I'm really stuck in this and can't get the idea. Apr 16, 2015 · DP to PX float dp = 20; float px = dp * getResources(). 0 density 100px should be 50. dp() as a top-level function, if you don't need data from CommonUtil (like in your case), or if you can declare this data as public or internal: 10. COMPLEX_UNIT_DIP, dp, getResources(). You should never use px to space things, px should only really be used with canvas draw commands. RECTANGLE shape. As a result, it sheds light on what exactly is being returned by applyDimension in each specified case: physical pixels on the device screen. Aug 25, 2021 · If you want to get the size in pixels: val screenDensity = configuration. If you have a constant dp value, you can get it in pixels easy like this for float: float sizeInPixels = getResources(). dp. gradle at the end of repositories: allprojects { repositories { // maven { url 'https://jitpack. When you use sp/dp, your Android applications will be compatible with a wide range of screen densities and resolutions. I checked several open source Compose projects and most of them are hardcoding the dimensions. GitHub Gist: instantly share code, notes, and snippets. getRawDimensionInDp(@DimenRes dimenResId: Int): Float { val value = TypedValue() getValue(dimenResId, value, true) return TypedValue. dimen_entry_in_dp); And your dimens. You could try: public static int convertDipToPixels(float dips) { return (int) (dips * appContext. toPx() { /** implementation */ } The function in jav Apr 26, 2021 · Screen density = Screen width (or height) in pixels / Screen width (or height) in inches Understanding how pixels work. " Feb 21, 2023 · the size must look bigger. Use in Kotlin's code(or other file) val height = 48f. DPI – Dots per inch hay PPI – Pixels per inch: Lưu ý dp hay dip không được nhầm lẫn với dpi (dots per inch). Use px/dp for defining precise visual elements such as padding, border, margin, and sometimes image sizes. jvm. COMPLEX_UNIT_DIP, {sizeInDp}, r. I was expecting the IDE to automatically transform it all to Kotlin, however it failed in the process. Nov 17, 2017 · Am not find any direct conversion percentage to dp formula because phone dp is varied for multiple screen. i. Fine. g. public static float convertDpToPixel(float dp, Context context){ Resources resources = context. COMPLEX_UNIT_PX, fontSize * fontFactor); } public static float fetchFontFactor(Activity act) { DisplayMetrics displayMetrics = new DisplayMetrics(); act. Instead, decide how big you want the spacing in physical size (inches) and convert that to dp (160 dp= 1 inch). data) } // Usage: resources. On the other hand, pt is exactly the same physical size on every density, which leads to a different amount of px being used, which can hinder how to convert pixels to dp or dp to pixels in androidIn this video, we learn how to convert pixels to dp or dp to pixels in android. Feb 13, 2023 · It seems having LocalConfiguration. Jun 3, 2010 · For what it's worth, let's say you wanted to resize the view in device independent pixels (dp): - You need to use a method called applyDimension, that's a member of the class TypedValue to convert from dp to pixels. Aug 22, 2012 · But when I use the Canvas. This is a common task while working with Android UI, and Jetpack Jan 4, 2020 · But you can also set dp in width and height by converting dp to pixel. You signed in with another tab or window. Scale-independent-Pixels en inglés, tienen la misma función que los dp , la diferencia es que se aplican a textos, en el caso de Android para TextView o cualquier otro elemento que soporte una fuente. COMPLEX_UNIT_PX, getResources(). fun Int. complexToFloat(value. screenWidthDp be an Int makes conversions from dp to pixels less accurate. dp: A value in dp (density independent pixels Dp to Px Kotlin Code. resources. Pixel values can be converted to DP by dividing the pixel value by the screen pixel density. 結論から言うと、layoutParamsをいじってViewのサイズを動的に変更する時は、pxで指定します。 おまけ. densityDpi / 160f); return px; } Scalable pixels (sp) serve the same function as density-independent pixels (dp), but for fonts. The primary difference between an sp and a dp is that sp's preserve a user's font settings. java; android; android-studio; constants; (Bên iOS dùng pt hay point có khái niệm tương tự với dp – xem mục 4 bên dưới) 160 dp = 1 inch – điều này có nghĩa 1dp = 1/160 = 0. If you do not find this template, try upgrading the Android Studio to the latest version. xml file, like this: Mar 31, 2016 · dpの説明は詳しい記事があるのでそちらをどうぞ。 【Android】いまさら聞けないdp入門 Y. Add it in your root build. 1 dp equals 1 pixel on a mdpi (160 dpi) screen. You can use this method. 5f); } Hope this helps Jan 8, 2010 · I will elaborate more on how exactly does dp convert to px: If running on an mdpi device, a 150 x 150 px image will take up 150 x 150 dp of screen space. The android system scales the UI component according to the pixel counts of different devices using the DP values. It works in 2 Android specifying pixel units (like sp, px, dp) without using XML. getDefaultDisplay(). x / dp). E. All two ways of updating margin above are updating in pixels. density and that value will give you your dp-to-px scaler. So I'm working now with a fixed resolution (1280x800) and I'm using the drawable-nodpi folder and adjusting the canvas later if the screen of the phone is wider or narrow. density } Based on your example above the val heightDp and the val widthDp both will have 10dp value. 1) Calculate the screen width (500dp) 2) calculate the percentage of your margin (15%) of the layout width. 5f). we write 2 methods and Aug 18, 2019 · setting the marginEnd and marginStart like this is asking for pixels rather than dp, so it's different for all phones, is there a way to change the 150dp (start) and 150dp (end) to something else? Thanks Sep 22, 2019 · Any value that you set programmatically is treated as a pixel. 在android开发中有的时候处理控件大小我们会需要用到dp值来进行处理，针对这种情况，我们一般会写一个类似dp2px(float dp)的static方法。 然后每次调用的时候这样来使用. So we've to convert the dimension from pixel to dp. Then you can query the dimen entry and it will be automatically converted to pixels in this call: final float inPixels= mActivity. Add the JitPack repository to your build file. Density-independent pixels: an abstract unit that is based on the physical density of the screen. sp: Int get Jun 7, 2022 · Kotlin Multiplatform Mobile(KMM)ライブラリでSQLDelightを使う設定 2022年6月19日 [備忘録]Android：Drawableの色合いを動的に変更する 2022年6月13日; C#でlet, also 2022年6月11日 [備忘録] XamarinでAdMob広告を表示する時のAndroid・iOS各設定 2022年6月7日 May 31, 2023 · 在 Jetpack Compose 中，可以轻松地将密度无关的像素（dp）转换为屏幕像素（px）。这对于构建响应式 UI 非常有用，因为它可以使在不同的屏幕密度和大小上保持一致的布局和元素大小。 Jan 6, 2014 · DisplayMetrics metrics = getWindowManager(). getMetrics(metrics); float logicalDensity = metrics. – Jun 5, 2024 · OBS: O var_number_int é a varável que recebera o valor a ser convertido em DP (int) TypedValue. COMPLEX_UNIT_DIP, var_number_int, getResources(). density; Mar 9, 2010 · It uses pixels. fun Float. Add the dependency. You need to do a translation of dp to pixels. Using formula px = dp x (dpi/160), I was using 441dpi, whereas my device lies in the category 480dpi. Sep 24, 2021 · The terms: dp - density independent pixels - this is a pixel value that is automatically scaled for you based on the density of a device; sp - scalable pixels - like dp but also scaled based on a user's text preferences (e. You might want to round to a whole number as well. dpToPx. It is a bit verbose though so I’ve wrapped it in a Kotlin wrapper along with my other Android utils: PxToDp converter creates dimension files to make your UI responsive across all the devices. Kotlin 扩展函数在项目中应用场景很多，为此我做了几个简单的方法来方便日常开发使用，例如按压半透明的view，按压缩放或者阔放，PX转DP，DP转PX，获取状态栏高度等等. getDimension() returned as pixel value. If you can get the density from the code, you can use the convertion: "The conversion of dip units to screen pixels is simple: pixels = dips * (density / 160). It’s looking like 6. 03). I'm trying to convert pixels to dp. Convert mm to pixels. 5 Android Kotlin SP DP to PX Code /** * Turn into PX (pixels) according to the resolution SP of the mobile phone */ inline val Double. Use em/sp for defining font and icon sizes so that your app respects the users' font-size preferences. getDisplayMetrics() ); Jan 3, 2024 · A view that is 100 pixels wide appears much larger on the device on the left. 1 dp có thể chứa 1 hay nhiều pixel. Which we need to convert into db * @param context Context to get resources and device specific display metrics. density; int px = (int) (dp * logicalDensity + 0. color. val scale: Float = resources. So you just want to scale it up? I feel that better solution, if you want to increase size on larger screens, would be use different sizes selected by WindowSizeClass not try to just scale it up, dp wouldn’t help in this case anyway, because dp is specified by device and they are not equal for different devices anyway, so cannot be used for your case, as I understand it Feb 7, 2014 · It says that the formula Android uses to convert between a dp unit to a px unit is the following: px = dp * (dpi / 160) The article also gives an example when the dpi is 240, which gives us px = 1. 00625 inch. Kotlin 2. Learn Android - Converting dp and sp to pixels. Dec 19, 2020 · The conversion of dp units to screen pixels is simple: px = dp * (dpi / 160). , accessibility settings to increase the font size) Aug 23, 2022 · I usually just map the pixels into density pixels (10px-> 10dp) unless these sizes cannot be replaced with match_parent or wrap_content. We also looked at how to convert them to pixels and back. – Step 2, to update margin in dp. Step 2 − Add the following code to res/layout/activity_main. At least, it doesn't take into account font scale from the system settings. M の 雑記帳: Android dip, dp, から pt, px に変換する. Converting pixels to dp. 5f); Here dps your actual dp and its converting pixel for setting width and height. io, and let's chat! Android dp to px. densityDpi / 160f and multiply with dp, for example val screenHeight = configuration. For example, I have 4dp resource with name small_margin, when I call getDimension(R. getResources(); DisplayMetrics metrics = resources. 8. height(100. final float scale = getContext(). 端末の解像度を取ってきて計算してるだけです。 Aug 8, 2012 · The functions for converting dp to px and px to dp should look like below (in kotlin): fun convertDpToPx(dp: Int): Int { val metrics = Resources. So if I want to set the height to 150dp (say) - then I could do this: Oct 1, 2021 · 1 当我们在资源文件里设置尺寸的时候多是用dp，那么Android的开发并不局限于我们所用的资源文件，有时候我们需要动态的管理视图的尺寸，view给我们提供了setPadding(left, top, right, bottom);但是此时的 int并不是dp，而是px，由自己来转换；下面给出转换的函数。 Sep 17, 2019 · SSP library is helpful to define scalable size unit for defining text related dimens instead of just defining sp as unit. For example, on 240 dpi screen, 1 dip would equal 1. 5. Note: The compiler accepts both "dip" and "dp", though "dp" is more consistent with "sp". For example, a 32 x 32 px icon with a screen density of 320 equals 16 x 16 dp. pink)) shape. COMPLEX_UNIT_DIP, dp, context. getConfiguration(); int screenWidthDp = configuration. 9. float dpvalue=totalwidth * percentage //500 *(0. Convert Pixel value into dp value. densityDpi 單位 dp Density-independent pixel，獨立於螢幕解析度密度的像素值，也就是說，當你設定 1dp 時，在 120 dpi 的螢幕上會是原本的 75 %，在 160 dpi 的螢幕上為 100%，在 240 dpi 的螢幕上為 150%，實際的像素值會依螢幕密度而改變。 Jun 14, 2024 · Compose offers tools for creating user interfaces. Simply Input the width and height of your app screen design, and have your responsive UI work on any phone and tablet within seconds. getInsets(typeMask: int) where the typeMask is the Bit mask of WindowInsets. A dimension is denoted by a number followed by a unit of measurement. Kotlin dp px 转换工具类. setColor(ContextCompat. Aug 3, 2022 · Why can you rewrite Code C into Code D, but not Code A into Code B? The difference, as the answer your linked also mentioned, is that toPx in Code A is an extension method of Dp declared in Density. For screens with higher Feb 12, 2016 · I think we can't set dp directly to the view. Apr 15, 2021 · Android dp转px 方法一：方法转换 /** * 根据手机的分辨率将dp转成为px。 */ fun dp2px(dpValue: Float): Float { return TypedValue. On visualizing it, we can see that the exact same component looks different on devices with different screen densities. . You can achieve this by using the formula: pixels = dp * (density_dpi / 160). Android kotlin, converter for Dp to Px and vice versa - PixelSizeConverter Sep 10, 2021 · I want to set the height of view in pixels not in dp. Step 2: Adding a new color to the Color. Confused about PixelFormat. To convert between pixels and dp you have to multiply by the current density factor. Example. You can easily test it using @Preview(fontScale = 1. Jan 28, 2019 · I copy-pasted a java code sample that converts DP to Pixels, in order to place it as a parameter for setting padding programatically. displayMetrics return (px / (metrics. round((float) dp * density);} Essentially, TypedValue. pdog18:dimension-extensions:1. defaultDisplay val size = Point display. With Compose you can convert dimension to pixels using the extension function. Sep 4, 2024 · Definition: dp (also known as dip) stands for density-independent pixels. Here, we have created a component, defining its sizes using pixels (2px x 2px). 15. displayMetrics: dp * (metrics. For example, if you have an icon that is 48x48 pixels, it should go in drawable-mdpi. How to set Jun 4, 2023 · As developers, we often come across situations where we need to convert pixels to density-independent pixels (dp) or vice versa. So you need to convert dimension into PX from dp first using display factor like this. The docs say this . Jan 7, 2014 · converting pixels to dp in android. For future references: Configuration configuration = yourActivity. github. fun dpToPx(context: Context, dp: Float): Float { return dp * (context. Types to query the insets for. displayMetrics ). The floats I chose above (20 and 70) were arbitrary values Step 3. density + 0. It uses Dp for all elements, but performs callbacks using Px. setTextSize(TypedValue. Commented Nov 11, 2022 at 11:56. Let's say I have an extension function written in kotlin which converts DP to PX and return a NonNull Int fun Int. xml will have: Jul 26, 2022 · DP values don’t depend on the number of pixels that a device has. shape = GradientDrawable. since px is Int. scaledDensity; int mTextSizeP = (int) getResources Extend by device; Build apps that give your users seamless experiences from phones to tablets, watches, headsets, and more. Step 1. displayMetrics return dp * (metrics. DENSITY_DEFAULT)} else {val metrics = Resources. roundToInt() } fun convertPxToDp(px: Int): Int { val metrics = Resources. float height = dp2px(48f) //use height Oct 19, 2023 · dp to px : To convert dp to px, we use the extension function below. dp but with your existing function you simply change 100px to 100. However you still have to think about the device density and the conversion is annoying to do programmatically. dp))` In this example height of the box is set to 100 dp and modifier function accepts only dp. Jun 7, 2011 · See also this answer for DP -> PX, PX -> DP, SP to PX, and PX to SP conversions. – Johann. dp 说明. densityDpi/160f); return px; } Then I try to get the dp from a variable in my dimen. screenWidthDp; //The current width of the available screen space, in dp units, corresponding to screen width resource qualifier. float px = TypedValue. 2. However, if you calculate from dp to pixels using an Int of 411 or 412, then the pixels are 1078. Resources r = getResources(); float px = TypedValue. dp() } Although you should consider other ways to design your function: Passing Int as a parameter, not as receiver: CommonUtil. Nov 11, 2022 · dp = pixels / density; – imamangoo. textSize = 10f. final float scale = getResources(). * @return A float value to represent dp equivalent to px value */ fun convertPixelsToDp(px: Float, context: Context?): Sep 16, 2022 · To convert to dp you need to use LocalDensity. The first one, COMPLEX_UNIT_PX, is easy. xml. Extend by device; Build apps that give your users seamless experiences from phones to tablets, watches, headsets, and more. Formula: PX = DP * (dpi/160) For MDPI devices: dpi values is 160, put the value here: PX = DP * (160/160) PX = DP. JvmInline value class IntOffset internal constructor(@PublishedApi internal val packedValue: Long) Offset can represent An immutable 2D floating-point offset but it's generally used for representing pixel values with default Modifiers, or functions. densityDpi. spview. `Box(modifier = Modifier. Aug 20, 2010 · The conversion of dip units to screen pixels is simple: pixels = dips * (density / 160). io' } } } Step 2. density; or . Check relation between the dp, px, sp, in, mm and pt measurement units and convert to other unit. applyDimension cannot be used to convert px->dp Sep 15, 2019 · dp⇔spの変換方法については、ここまでのpx⇔dpの変換方法とpx⇔spの変換方法を組み合わせることで実現させることができます。 まとめ この記事ではAndoridアプリ開発においてpx⇔dp⇔spを動的に変換する方法を紹介しました。 Jan 15, 2021 · The question was about pixels to dp and not the other way around. We can use Nov 5, 2020 · How to convert pixels to dp in an Android App using Kotlin - This example demonstrates how to convert pixels to dp in an Android App using Kotlin. unfortunately what you want cannot be happen. Unlike px, dp scales with the screen’s density, ensuring that UI elements appear the same physical size across different Dec 24, 2019 · 什么是扩展函数？ 在介绍什么是Kotlin的扩展函数之前，先来看一个具体的例子。在日常Android任务开发中，一般在设置View的尺寸时都应该使用dp值，但是View系统底层都是使用的px值来进行计算的，所以需要把dp值转成对应的px值。 Android dp to px and px to dp, simple unit conversion java function. See Convert dp units to pixel units for more information. Commented Nov 25, 2021 at 15:08 Jan 8, 2020 · how to convert `Dp` to `Px` is there any special h # compose. dpToPx private val CORNER_RADIUS_PX = 5. density; Notes. getDisplayMetrics()); PX to DP float px = 70; float dp = px / getResources(). It is Aug 29, 2023 · /** * A two-dimensional position using [Int] pixels for units */ @Immutable @kotlin. Overview Nov 29, 2011 · I am trying to calculate a variable amount of pixels to density independent pixels and vice-versa. my Mar 16, 2018 · After spending so much time, I got to know that on setting height and width programmatically it takes in PX (pixel) not in dp which we set in XML. To get pixel from dp, you can use TypedValue#applyDimension() method. roundToInt() } You could choose to take advantage of extensions instead: Jul 23, 2021 · An XML-defined dimension value. Oct 18, 2016 · Here's a Kotlin solution. Mar 7, 2016 · That won’t be accurate in other high/low density devices, so We need to ensure We are setting a dp value to it. toInt () Extend by device; Build apps that give your users seamless experiences from phones to tablets, watches, headsets, and more. dp – Aug 11, 2021 · The actual number of pixels that is depends on the device's screen density - a higher-density screen crams a lot more pixels into a given space, so a given dp value will translate into a higher px value. Jul 17, 2017 · When designing layouts for the screen, calculate an element’s measurements in dp: dp = (width in pixels * 160) / density. Dec 7, 2021 · The ratio of dp-to-pixel will change with the screen density, but not necessarily in direct proportion. I'd prefer don't write spec Jan 26, 2021 · You shouldn't use lineHeight to determine the height of the rendered text. Mar 8, 2017 · There is a very neat way of converting dp to px without Context, and it goes like this: public static int dpToPx(int dp) { float density = Resources. Reload to refresh your session. Wrapping Up. Need some career advice or prepping for an Android developer interview? Hit me up on Topmate. displayMetrics) } TypedValue. 5 mean here? Once the px units are actually the physical device pixels, will Jun 20, 2012 · Here is a better solution, not involving double conversion from dp to px then px to dp: In Kotlin fun Resources. density; int pixels = (int) (dps * scale + 0. dp(10) Declaring Int. Note that TypedValue. What is the formula? Lets convert 640 and 480 into dp. Which we need to convert Converting DP to PX in Kotlin is essential for ensuring that your app's UI is displayed consistently across different screen densities. getDisplayMetrics(); float px = dp * (metrics. applyDimension方法可以将所有类型的数据转换为px 参数1：输入的value类型 参数2：要转换的数值 参数3：Resources Sep 13, 2022 · While choosing the template, select Empty Compose Activity. We can also get window insets in addition to the screen size by using WindowMetrics. kt file Mar 10, 2011 · It seems you know the dimensions in dp at compile time, so you can add a dimen entry in the resources. getMetrics(displayMetrics); float returnFactor = ((float) displayMetrics Aug 24, 2011 · On my Galaxy S4 having > 441dpi > 1080 x 1920 > Getting Actionbar height with getResources(). kt Mar 19, 2015 · Convenient dp to px code conversion - In code you usually need to work with pixel values. current. I might have a container in a design file (like Figma file) that is 300px wide and has 16px of margins between the container and the phone frame (which would make the phone frame 332px wide) - in Android I would just set the width of the container to May 11, 2011 · Is there any way to set the height/width of a LayoutParams as density-independent pixels (dp)? It looks like the height/width, when set programmatically, are in pixels and not dp. displayMetrics. For example, on a 240 dpi screen, 1 dp equals 1. round((float) dp * density); } In every Google's example on Google GitHub page they are using the following approach: Para calcular dp: dp = (ancho en píxeles * 160) / densidad de la pantalla. toFloat() * screenDensity. dp You can convert pixel to dp either online using the converter we provide above or manually using the px to dp conversion formula. toFloat() / DisplayMetrics. setStroke(STROKE_WIDTH_PX, ContextCompat. density; int pixelForDp = (int)dpValue * dpRatio; Now put the calculated value to the above margin update functions and you should be all set Dec 12, 2017 · This is a general question. For instance, 25px, 5in, 10dp and 10sp. The default value of an sp is the same as the default value for a dp. DENSITY_DEFAULT)}} /** * This method converts device specific pixels to density independent pixels. 2f). 5 (I'm calculating for one single dp pixel) However, what exactly does 1. If you don't have * access to Context, just pass null. 0-beta03の情報です。 APIは変更される可能性があるので適宜最新versionに置き換えてください。 px to dp May 22, 2024 · Java and Kotlin Code Examples. – Suragch. DENSITY_DEFAULT) } And use it like this Dec 4, 2013 · @sachithkn The 4 parameters of setPadding() (start, top, end, bottom) requires values as pixels too. サンプルコード. ; If running on an hdpi device, a 150 x 150 px image will take up 100 x 100 dp of screen space. Jul 28, 2024 · That also means there is a standard formula that we can use to calculate the DP and PX relation based on the current screen DPI. You will have to generate different dp values for different density screens. small_margin) it will return the product of 4dp and density of device (4dp * density). getResources(). toInt(). デザイナーから提供される数値はdpだったりする。 Jan 15, 2017 · When you specify values programmatically in the LayoutParams, those values are expected to be pixels. Notice how it just returns the original value and performs no additional modifications to it. how to convert Dp to Px is there any special helper yet with Pixels to DP converter is a perfect online conversion tool that allows you to easily calculate and convert Pixel to DP. We demonstrated the application in Kotlin, so make sure you select Kotlin as the primary language while creating a New Project. Jan 30, 2024 · In Android, dp (density-independent pixels), sp (scale-independent pixels), px (pixels), and dip (density-independent pixels) are units of measurement used to define dimensions in the layout and… Dec 11, 2024 · Compose offers tools for creating user interfaces. Update. Kotlin スコープ系の関数で取得できる、というのだが気持ちが悪いです。 これは、以下でも同じ。 Dec 12, 2023 · In Android, px is actual pixels. density; return Math. 875 or 1081. When you need to set a pixel value for something like Paint. getDimension(R. Jan 3, 2024 · dp. roundToInt() } Aug 23, 2015 · //Converts device pixels to regular pixels to draw private float dpToPixel(float dp) { DisplayMetrics metrics = this. applyDimension(TypedValue. Pixel to dp conversion formula is: DP = pixel * (160/dpi) Sep 4, 2023 · For the pixel-to-dp-conversion, a pixel value is divided by it, and for the dp-to-pixel-conversion, the dp value is multiplied by it. Nov 25, 2010 · I've the same problem. Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project. A view defined to be 100 dp wide appears the same size on both screens. When defining text sizes, you can instead use scalable pixels (sp) as your units. px Nov 28, 2012 · You can try following: // Convert the sp to pixels. Use that to convert using . my_dimen_id) Feb 15, 2018 · Android DP / SP to pixels. toDp()} dp is calculated as pixels / density. だけだとあまりにも味気ないので、Viewのサイズ変更に使えるコードを紹介。 px⇆dp変換. applyDimension( TypedValue. The method in the code below converts dp unit to equivalent pixels, depending on device density. dpToPx(context: Context): Float = (this * context. layoutParams = Layou… May 19, 2017 · The answer of @Rohit Suthar in Kotlin, with dp converted to pixel, and color resources: private val STROKE_WIDTH_PX = 2. run{heightIs * 0. To put it more clearly, you can simplify this into this Kotlin extension function: Nov 26, 2019 · In Google IO 2019, Google launched Jetpack Compose to create declarative UI. Here’s a breakdown: I want to tell a simple way to convert dp to px and px to dp in this article For Kotlin to increase/decrease font size with below logic. toFloat() val shape = GradientDrawable() shape. int smallestScreenWidthDp Sep 15, 2019 · ざっくり言うと、dpやspは想定的な単位なので実際のデバイスの大きさを考慮する必要がない便利な単位であり、pxなどの物理的な単位は現実の長さの単位なので実際のデバイスの大きさに左右されることになります。 結局pxとdpって何が違うの？ Dec 12, 2024 · Android uses density-independent pixels (dp) to ensure that UI elements are scaled correctly across different devices. my_text_size_in_sp)); Getting your text size this way will already convert SP to PX, taking both screen density and text scale factor in account. densityDpi / 160f). sp > Scaleable Pixels OR scale-independent pixels - this is like the dp unit, but it is also scaled by the user's font size preference. For more info see: TypedValue. y / dp). Sep 14, 2022 · I would like to understand how is better to use dp and sp values in the Compose project. I already know how to convert dp to pixels, but how do I convert sp to pixels? Jun 22, 2022 · How to convert Dp to pixels in Android Jetpack Compose? - Stack Overflow. In this blog post, we've discussed device-independent pixels. I guess I just need the forumla. Using dip units to define your application's UI is highly recommended, as a way of ensuring proper display of your UI on different screens. Apr 5, 2016 · Helper methods for converting dp to px and viceversa. I want to have a good method for converting sizes. That means it will change size based on the device. 01/08/2020, 9:27 PM. setTextSize but still want it be scaled based on the device, you can convert dp and sp values. toInt() // dp to px Sep 23, 2024 · In Android development, understanding the different units of measure such as px, dip, dp, and sp is crucial for creating a responsive and visually consistent user interface. but i have simple logic to get that value in dp. density val screenWidth = (size. dpのある世界 - 端末の解像度が違っても表示サイズは保たれる. getDisplayMetrics()); So the final code will be Dec 25, 2015 · Androidはこのdpのおかげで多用な端末をサポートできているのです。 dpのない世界 - 端末の解像度ごとに表示サイズが違う. 5 physical pixels. Ian Warwick. DP to Pixels Converter is a perfect online conversion tool that helps you to quickly calculate and convert DP to pixel. getSize (size) val dp = resources. For some reason I always remember converting DP/SP into pixels as being a pain but with TypedValue. displayMetrics. qiscz apnef nuo boqe aiesr ljcikk styozj hxa swza okjvj