Android get view id name getId(), but this may change between two builds. import android. Here is a simple example: public class ExampleActivity extends ActionBarActivity { @InjectView(R. Those that have none show a "-1" for the id. 在代码中，我们可以通过id值来获取到这个TextView对象： 1. fragment_left, container, false); img=view. your_menu_item); return super. If that ever changes, then it will no longer work. The getMenuInfo() method will return null in this case, as those Views are not attaching any extra info to the menu. setOnItemClickListener(object : OnItemClickListener { override fun onItemClick(parent: AdapterView<*>, view: View, i: Int, id: Long) { val item = myListView. I'm writing a AccessibilityService and I want to create view overlays on the views from the current activity that the accessibility service can retrieve. May 27, 2021 · Android - view idAndroid中，在java代码中new的控件是没有有效ID的（默认的ID都为-1,无效),这种情况下，如果设置多个控件的点击事件的时候会出现响应异常。这个时候就需要我们给new出来的控件设置一个viewid,并且需要保证该id唯一（在范围内唯一？ /** * A Login Form Example in Kotlin Android demonstrating on how to access a view programmatically using findViewById */ class MainActivity : AppCompatActivity() { override fun onCreate(savedInstanceState: Bundle?) { I'm using the Showcase library to explain my application feature to the user. public void onClick(View view) { // Get the text on the pressed Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company I need to get the package name of an Android APK. Thats why it is returning null. View view= inflater. I. 5. When defining an id for a View it is in the form of @+id/name. There are some problems with this approach. Alas you cannot get the name of the id you used in the xml file. onCreate(savedInstanceState I am new to Kotlin and android in general. Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project. my_activity. getResourceEntryName(View. getColor(this, R. id. If you're just trying things out and want to have fun with threads, this code block will put your code onto the UI thread and will wait for everything to be rendered and then display your code: My Question is how can i get this Textview based on the position in the list i tried to find a way to use mstring[position] in the getView, but this will just return a string. instantiateItem() this depends on if the fragment has been viewed * yet OR is a sibling covered by {@link View v = findViewById(R. Below is the code for the MainActivity. 6k次。Android - view idAndroid中，在java代码中new的控件是没有有效ID的（默认的ID都为-1,无效),这种情况下，如果设置多个控件的点击事件的时候会出现响应异常。 这个时候就需要我们给new出来的控件设置一个viewid,并且需要保证该 Mar 21, 2020 · 文章浏览阅读7. Use a Firebase installation ID (FID) or a privately stored GUID whenever possible for all other use cases, except for payment fraud prevention and telephony. color. Note: The primary usage of this API is for UI test automation and in order to report the source view id of an AccessibilityNodeInfo the client has to set the AccessibilityServiceInfo#FLAG_REPORT_VIEW_IDS flag when configuring the Use getId() method. drawable id using v. 要获取View Oct 8, 2020 · context. In that case you have to use setContentView(View) instead. List<ApplicationInfo> packages = pm What if I already have a tag on my view. It returnes the int id that you can compare to the id from resources. getId();那么有另一种获得此ID的方法吗？I would like to know what is the difference Mar 29, 2019 · One of the features that it provides is a new method of view binding, invoked by simply importing the view ID you defined in your XML layout: import kotlinx. myView style description with describeTo. Posted on May 25, 2022. findViewTreeLifecycleOwner()实现原理？ May 26, 2021 · ListView作为Android中最常用的组件之一，其优化方式也比较多。在使用ListView或是GridView的时候，往往需要自定义数据适配器。一般我们都需要复习getView方法。对于此方法的优化也我们对ListView的优化的重点之一。1. 2) The statement for getting this file is this. layout. android studio get id name from May 8, 2014 · Android获取布局父ID(Android get layout parent id)我想知道View和ViewParent有什么区别？我想获取ImageView父级的Id，但我不能这样做：myImageView. private static String makeFragmentName(int viewId, long id) { return "android:switcher:" + viewId + ":" + id; } A HAPPY PATH: ViewPager. To view only the line(s) containing the occurrence of package: # extract the android package id from a built apk file # usage . Button[] mButtonsArray = new Button[MyArrayList. You can get view like this: supportedFragmentManager. and not the views. Go deeper with our training courses or explore app development on your own. See more linked questions. Peri Hartman Peri Android: How to get Drawable Image name. Name element Id's in xml layouts like: You see ID of a UI view in the LogCat and from the ID you know what it is, and where to look for it in the code. And you can use. Get Drawable from image view. Read the official announcement! Check it out. inflateHeaderView(R. Gets the fully qualified resource name of the source view's id. getId()) { case R. 这些是分配 ID 资源，在编译时转换为数字。 这些是您 Oct 25, 2024 · 今天，简单讲讲android里关于@id和@+id的区别。之前，自己在布局里无论什么情况都使用@+id，可是后来发现有些代码用的是@id，自己不知道这两者之间有什么区别。于是就在网上查找资料，最终是解决了问题。这里记录一下。Android中的组件需要用一个int类型的值来表示，这个值也就是组件标签中的id Feb 20, 2024 · Approach 1 — specify view id. content. How to get a Android System View ID. xml. get drawable from ImageView. tv_name and et_pass; Put the android:id as the first attribute in the XML. If there is view with this ID in this layout, you won’t get any compile time errors. . content May 25, 2022 · The Android findViewById() method explained with examples. I have tried to unzip the APK and read the contents of the AndroidManifest. It is very convenient to use switch statement like this: public void buttonPress(View v) { switch (v. getParent(). getId; View[] array = new View[lenght]; array[savedId] = v; and then u get it How to get the unique device ID in Android which cannot be changed when performing a phone reset or OS update? <uses-permission android:name="android. I have a menu option. 2. AdapterContextMenuInfo info = (AdapterView. May 12, 2020 · int view_id = R. MY_TAG). class. findViewById(R. Use APIs that are appropriate for your use case to minimize privacy risk. com. kt file and refer to the following code. 4. Colors like #0affff would result in #affff. length]; for(int i=0; i<contentViews. getMenuInfo(); final long datasId = info. provider. setOnItemSelectedListener(new OnItemSelectedListener() { @Override public void onItemSelected(AdapterView<?> parent, View view, int position, long id) { // TODO Auto How can I get the text from a pressed button? (Android) I can get the text from a button: String buttonText = button. getTag() //To still get the ID name/string from view ID. When transferring the xml files to the R file, the Android tools transform them into a unique number and there is no way to get the name from this number. myTagId, R. So your findViewsById() would be, public View[] findViewsById(int id) { View[] views = new View[contentViews. Can someone please suggest how to call that method? Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company I want to get a resource id of an android resource that I have saved in /res/raw folder. getResourceEntryName (view. getStringExtra("name"); // if you log here i than you will get the value of i i. As shown in the onOptionsItemSelected(), by selecting an option, I need to update the fragment that is currently visible. currentImage); //Set int If you want to get the id in the fragment use the following method. putExtra("name", john); startActivity(theIntent); // How to get these values in another class // Class B Intent i= getIntent(); i. All of the solutions here using Integer. your_color) & 0xffffff) You really can't get the view before hand. targetView; } Look to these questions: The main answer relies on a name being generated by the framework. I have no problems to retrieve all AccessibilityNodeInfo objects from the current activity, but I have no idea how to get the views from these objects to create overlays. Secure; private String android_id = Secure. This is probably saving you from a ClassCastException, since those Views are not child Views of an AdapterView. For that I'm using the setAlpha(float num) of the View class. Required, but never shown Post Your Answer myListView. findViewById(id); } return views; } You might also want to take a look at Butter Knife. getTag(); // do something with position } } And I want to get cell towers information with these fields: cellId: Unique identifier of the cell. getResources (). 3k次，点赞2次，收藏9次。一 前言本文主要讲述通过getIdentifier()方法根据资源名获取资源id，并根据获取到的资源id进行相应的操作；根据布局名字获取id设置ContentView(要显示布局) 根据drawable图片名 Jan 3, 2024 · Get started; Start by creating your first app. it is defining an id that uniquely addresses the Oct 2, 2017 · 文章浏览阅读1w次，点赞17次，收藏40次。首先讲下ListView的原理：ListView中的每一个Item显示都需要Adapter调用一次getView的方法，这个方法会传入一个convertView的参数，返回的View就是这个Item显示的View。如果当Item的数量足够大，再为 Dec 24, 2021 · Android中可以同时存在多个View，它们的getId()方法返回相同的int值 淘宝android主客户端进入聚划算会加载三个宝贝界面，只有其中一个显示在当前屏幕中，因此在这个界面通过反射查找指定id的View，并通过getId()==id Aug 11, 2021 · Step 3: Working with the MainActivity. locationAreaCode: The Location Area Code (LAC) for GSM networks; CDMA networks use Network ID (NID). getIdentifier("xxx", "id", Aug 25, 2024 · 在 Android 中，获取 View 的 ID 通常通过 findViewById() 方法实现。 这个方法会根据提供的 ID 返回相应的 View 对象。 下面是一个简单的例子，展示了如何在 Activity 中获取 May 27, 2021 · 我能够用相应的id标识每个图标/文本字段，但我仍然不知道如何获得视图名称？ 有什么想法吗？ 我可以根据自己的观点做出反应。 我试过用“vc”来获取视图id，但如果我在拨号 May 25, 2022 · The findViewById() method is a method of Android’s View and Activity classes. The findViewById() method is a method of Android’s View and Activity classes. Try this, it should solve your problem : Main Activity. mydomain. class); theIntent. g. getId(); What I can't find out at this moment is how to get the text on the pressed button. my Here the plus sign (+) tells the Android SDK that it is a new id. Here is my class code: package com. xyz) where xyz is the actual filename. synthetic. view Below is my code which has 3 Fragment classes each embedded with each of the 3 tabs on ViewPager. 6k次，点赞4次，收藏17次。在定义自己的适配器时，要重写getView（）方法，该方法的原型为:getView(int position，View convertView，ViewGroup parent)该方法中的三个参数分别是什么意思，起到什么作用呢？int position翻译为：位置 Jul 17, 2020 · //Instead use the android:tag = "String" //in your xml //Then in Java use View. findItem(R. I can't use variable, cause it will change. id // get datas id I need to have an id/name which is related to views in my app, the id/name will keep constant across different builds and each id/name will be unique for the specific view. You may want to do an explicit using invalidate() if possible or you can check this in the onPostResume() or onResume() function. NullReferenceException because you are trying to access the Fragment's View in onCreate Method of activity and till now fragment view is not initialized. onPrepareOptionsMenu(menu); } Yes, You will get the System. permission. button_three: // i'm lazy, do nothing break; } } I assume that this is the RecyclerView. adapter. Follow answered Apr 27, 2022 at 23:41. RecyclerViewAdapter. Just get the root view using android R class: val rootView = findViewById(android. 如何获取View的id名称. getParent() // this can be done to get any level in your view hierarchy or you can cast the view itself as a ViewGroup: (ViewGroup)view Basically, find the view you want in your view hierarchy and cast it to ViewGroup In my activity i had to create a custom web view so, i put it and i want to get a FAB in the same activity but i having no success on that. Go to the MainActivity. Leaving the code like this: myImageView. public class Main extends Activity { public static String sStatus = ""; public void onCreate(Bundle savedInstanceState){ super. Think of it as @ for address, the + for add new, the id for identifier, and /name for the uniqueness (it is not possible to have two Views with the same name). How to get id of If you are looking for the ID of your underlying data (provided by the adapter's getItemId(int)), then just add the following lines in the onContextItemSelected method: final AdapterView. Commented Oct And I want to get cell towers information with these fields: cellId: Unique identifier of the cell. I need to do this for a lot of different Activities, and it would be a lot more convenient if I had a one-size-fits-all method call to accomplish the task. length; i++) { views[i] = contentViews[i]. OnClickListener globalClickListener = new View. john You can make your own. Settings. Get resource id and fetch and display the resource name on button click. 0. navigation); View headerView = navigationView. getString(getContext(). getInt(null); View view = findViewById(R. Step 2 − Add the following code to res/layout/activity_main. ANDROID_ID. xml file but it seems that it's not a text file. OnClickListener() { @Override public void onClick(View v) { int clickedPosition = (int) v. – Wes Winn Commented Apr 25, 2017 at 23:00 How to get Resource name using Resource id in Android - This example demonstrates how do I get resource name using Resource id in android. sh <path-to-apk> line=`aapt dump badging "$1" | grep package: You can get a reference to the MenuItem by overriding the onPrepareOptionsMenu(Menu) method: @Override public boolean onPrepareOptionsMenu(Menu menu) { MenuItem actionViewItem = menu. setId(). findFragmentByTag("android:switcher:" + id + ":" + position). The plus symbol, +, indicates that this is a new resource ID and the aapt tool will create a new resource integer in the R. You'd need to create a unique id resource and add it as the first argument to the setTag method call. if u want use android native views search, u need declarate they in xml. Share. ANDROID_ID); The above is from the link @ Is there a unique Android device ID? More specifically, Settings. If resource lookup is unavailable, at the time describeTo is invoked, this will print out a simple "with id: %d". android. java Dec 18, 2024 · public static Matcher<View> withId(int id). Android views can host multiple tags at the same time, as long as they have a unique identifier. by Nathan Sebhastian. getText(); I can get the id from a pressed button: int buttinID = view. 9k次，点赞4次，收藏3次。ViewTreeLifecycleOwner是什么？ViewTreeLifecycleOwner是View的一个扩展方法，可以通过View获取一个最近的Fragment或者Activity的LifecycleOwner。view. getResources(). omran Name. raw. getResources(). For the vast majority of non-ads use cases, an FID or GUID should be sufficient. Same as withId(is(int)) but attempts to look up resource name of the given id and use a R. Email. button_two: // do something else break; case R. And so for doing that I need to get the actual view instance of my ActionBar. I don't know why there is no method which provides header view attached programmatically. size()]; for (Button b : mButtonsArray You can also get the exact View for which the menu is being displayed: @Override public boolean onContextItemSelected(MenuItem item) { AdapterContextMenuInfo info = (AdapterContextMenuInfo) item. root_view_id) But I would like to be able to do it without having to pass in the ID of the root view. By the way, I'm using the support-7-appcompat library that gives ActionBar Implement an setOnItemSelectedListener. Follow answered May 19, 2014 at 3:57. getId();那么有另一种获得此ID的方法吗？I would like to know what is the difference Apr 1, 2020 · Introduced in the API level 1, this requires an ID and returns a View object. But if u really need to go this way, then: View v = new View(context); int savedId = v. getField("xxx"). Instead, here's two solutions: NavigationView navigationView = (NavigationView) findViewById(R. getMenuInfo(); int index = info. Improve this answer. // How to send value using intent from one class to another class // class A(which will send data) Intent theIntent = new Intent(this, B. Any ideas? it is bad idea. rootView) Approach 2 — use android. Dec 5, 2016 · Android - view idAndroid中，在java代码中new的控件是没有有效ID的（默认的ID都为-1,无效),这种情况下，如果设置多个控件的点击事件的时候会出现响应异常。 这个时候就需要我们给new出来的控件设置一个viewid,并且 Sep 27, 2019 · 文章浏览阅读3. d. ViewGroup viewGroup = How to add a "tag" with an "id" to a TextView in an xml file so that it can be retrieved using myTextView. Check the code below to help you understand better. getContentResolver(), Secure. setTag(R. I wanted to used view. view_id); 或者： int view_id = getResources(). Just specify view id of the root view in your layout: <FrameLayout android:id="@+id/rootView" And then find it in your code: val rootView = findViewById(R. Secure. The method is used to find an existing view in your XML layout by its android:id attribute. getTag(R. drawable. findFragmentByTag("android:switcher:" + id + ":" + position) nullify. – s. Depending on which ViewGroup you are after, you can get the parent of your view and cast it to a ViewGroup: (ViewGroup)view. getId(). kt file. name) EditText nameEditText; @InjectView(R. May 20, 2012 · Not all elements have an id value. e. Important! You get this fragment if your fragment was created in adapter. Make buttonId a class member of your Activity, and retrieve it from the View passed into the onCreateContextMenu() method. private View. 重用convertView ListView获GrideView要加载View的时候，会调用很多次getView()。 Sep 24, 2019 · 文章浏览阅读4. Rather you will get Feb 27, 2023 · 在APP开发过程中 ，经常需要调整APP界面、修改控件位置。通常需要通过控件id快速定位控件对应的代码。这里介绍最常用的android 查看界面控件id的方法，通过Android studio自带的Android Device Monitor可以方便快捷 Dec 16, 2016 · Value for android:id For the ID value, you should usually use this syntax form: "@+id/name". toHexString() break if you would have leading zeroes in your hex string. toString() } }) The code returns the item clicked by its index i as shown in the code Original solution. To update that I have to call a method which is in the fragment class. Then get it back with v. image); return view; call all the methods before you return the view. email) EditText emailEditText; @Override public void onCreate(Bundle savedInstanceState) { This is an easy approach if you can use the view's id member variable: just store the R. getId()) Breaking News: Grepper is joining You. READ_PHONE_STATE"/> Share. Nov 28, 2023 · 每个View都可以通过 android:id 属性来设置一个唯一的id值，用于在代码中获取该View的引用。 例如，在布局文件中定义一个TextView，并为其设置一个id值： 1. app; import Don't bridge Advertising ID resets. /getPackageName. getItem(i). Use this instead: String. button_one: // do something break; case R. AdapterContextMenuInfo) item. Others show their id value in hexadezimal. inflate(R. R. Sep 19, 2017 · 文章浏览阅读1. Comments are added inside the code to understand the code in more detail. I need to get the package name of an Android APK. openRawResource(R. Data binding ; Share. final PackageManager pm = getPackageManager(); //get a list of installed apps. Reading time: 1 minute. Here is some pseudo-code since I forgot how Java works. How to get text pressed button, inside onClick method. int count; spinner1 = (Spinner) findViewById(R. To view only the line(s) containing the occurrence of package: name, use findstr (in Windows PowerShell or CMD): aapt dump badging <path-to-apk> | findstr -n /C:"package: name" # extract the Just delete the "getColor()" and type it out again, use intellisense to complete the method call with the Android deprecated getColor call and you're good. replace the return statement with view like this. Simply using databinding to get view id and handle alot of issues. mobileCountryCode: The cell tower's Mobile Country Code (MCC). spin); spinner1 . main. File naming. The use - 1) I am passing the name of the resource to the class and this name is being saved in a string fileNeme. A matcher that matches Views based on its resource id. It aims at reducing the amount of boilerplate code by using annotation. format("#%06x", ContextCompat. 3. Here's a cleaner way using the PackageManager. On GSM, this is the Cell ID (CID); CDMA networks use the Base Station ID (BID). So you must to check supportedFragmentManager. getId ())_view 获取name. position; View view = info. Unfortunately there are only few examples regarding ANDROID_ID. May 12, 2020 · Android获取布局父ID(Android get layout parent id)我想知道View和ViewParent有什么区别？我想获取ImageView父级的Id，但我不能这样做：myImageView. You see the view with id status exists in the Main activity context, while you are trying to find it from the Contacts activity context. In some point I need to dim the whole ActionBar to present another feature to the user. header_layout) ImageView iv = Within the XML, name should be underscore with no capitals, e. For example, suppose you have a TextView in your Oct 21, 2024 · 本文将结合实际开发经验，详细探讨高效获取View的ID的方法，并分享一些优化代码性能的实用技巧。 在Android开发中，获取View的ID主要有两种常见方法：通过R文件直接 Sep 15, 2023 · 本文将介绍在Android中如何获取View的ID，并提供相应的代码示例。 在Android中，可以使用findViewById ()方法来获取View的ID。 这个方法是在Activity或Fragment中的上下 Dec 27, 2024 · Android Studio提供了强大的自动补全功能，当你开始输入 findViewById 时，它会自动显示所有布局文件中的View，并显示它们的ID，从而快速定位到所需的View。 快速获 Dec 26, 2012 · getId() 返回 android:id 值，或您通过设置的值 setId()。 在您的 XML 中，它们可能看起来像 @+id/field1 和 @+id/field2. Since you're working with a lot of buttons I suggest you put them all into a ViewGroup (like LinearLayout, FrameLayout or something like that), then iterate through each View of that ViewGroup, check its instance then assign the click listener. uvrd czxeb lkky mtbxf secpn mwruhjoe iddtos zlrq vtg kitrhr