android-layout

问题 I have a question about how to improve the performance of a large horizontal linear layout. I am creating a table like view that can have anywhere from 50 to 2,500 entries. Each entry is a LinearLayout containing a TextView with some simple text. I have implemented the design by utilizing the LinearListView library. This library allows an ListAdapter to be bound to a LinearLayout to display a view in a horizontal or vertical orientation. The way I have implemented this currently is by

问题 I am new to android and I am trying to make an app with more than 3 elements in the bottom navigation bar. I am able to display them but they are getting clustered at the end and only three are visible properly. Here is my code: <android.support.design.widget.BottomNavigationView android:id="@+id/bottomNavigation" android:layout_width="wrap_content" android:layout_height="wrap_content" android:elevation="15dp" android:layout_gravity="bottom" android:layout_alignParentBottom="true" app:menu="

问题 I am new to android and I am trying to make an app with more than 3 elements in the bottom navigation bar. I am able to display them but they are getting clustered at the end and only three are visible properly. Here is my code: <android.support.design.widget.BottomNavigationView android:id="@+id/bottomNavigation" android:layout_width="wrap_content" android:layout_height="wrap_content" android:elevation="15dp" android:layout_gravity="bottom" android:layout_alignParentBottom="true" app:menu="

问题 i have two linear layouts in one frame layout. <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:gravity="left" android:orientation="vertical"> <FrameLayout android:layout_width="fill_parent" android:layout_height="fill_parent" android:background="@drawable/image12"> <LinearLayout android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="vertical">

问题 I am trying to prompt the user to enable gps, i tried many times to resolve issues but not able to clear it.I am new to android can any one please help me........ My mainactivity.java, public class MainActivity extends AppCompatActivity { private WebView view; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); WebView.setWebContentsDebuggingEnabled(true); WebView view = (WebView) this.findViewById(R.id

问题 I am trying to prompt the user to enable gps, i tried many times to resolve issues but not able to clear it.I am new to android can any one please help me........ My mainactivity.java, public class MainActivity extends AppCompatActivity { private WebView view; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); WebView.setWebContentsDebuggingEnabled(true); WebView view = (WebView) this.findViewById(R.id

问题 I am trying to prompt the user to enable gps, i tried many times to resolve issues but not able to clear it.I am new to android can any one please help me........ My mainactivity.java, public class MainActivity extends AppCompatActivity { private WebView view; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); WebView.setWebContentsDebuggingEnabled(true); WebView view = (WebView) this.findViewById(R.id

问题 I've been trying to figure out how the default Navigation Drawer Activity template came with Android Studio navigates between different fragments. I understand that this menu is an implementation using AndroidX navigation component and navigation graph, but I just cannot understand how each menu item is mapped to its corresponding fragment. I don't see any listener or onNavigationItemSelected() etc. Can someone explain how the mapping between menuItem and corresponding fragment was achieved?

问题 I want to group together the label (e.g. "StaffID") and the value of the textView (e.g. "S1234567") together, vertically, in Android. The label stays on top the textView value throughout while the user is typing in the value in the textView. Attached is the screenshot of how I want the UI to look like. Click here to view the UI screenshot 回答1: Wrap the edit text with TextInputLayout with the desired android:hint attribute. <com.google.android.material.textfield.TextInputLayout android:layout

问题 I'm trying to scroll recycler view item to top of screen when user clicks on an item. My layout is set as following - <FrameLayout> -- <ScrollView> --- <LinearLayout /> // static content --- <RecyclerView /> // dynamic content --- <LinearLayout /> // static content -- </ScrollView> -- </FrameLayout> What I want to achieve is when i click on an item of recyclerview. It should scroll up to top of the screen. I have tried following so far but no luck. -> // use recycler view's layout manager to