android-xml

问题 I created a custom view for Android which renders two inner views to store a key and a value in two columns. The class looks like this: public class KeyValueRow extends RelativeLayout { protected TextView mLabelTextView; protected TextView mValueTextView; public KeyValueRow(final Context context) { super(context); init(context, null, 0); } public KeyValueRow(final Context context, final AttributeSet attrs) { super(context, attrs); init(context, attrs, 0); } public KeyValueRow(final Context

问题 How to create a custom shape for a Button? Can I set different colors to button background colors for many conditions.Any help will be appreciated.Thanks. 回答1: How to create a custom shape for a Button? Create a test.xml file in drawable and add code: <?xml version="1.0" encoding="UTF-8"?> <layer-list xmlns:android="http://schemas.android.com/apk/res/android" > <item android:id="@+id/one"> //<---- id is must for color change <shape android:shape="rectangle"> <size android:width="150dp"

问题 I am a newbie in android programming. I tried to create a stopwatch application, but recently i got an error in the layout. I have been debugging this layout error for 2 days and still cannot find the solution. I do not think this is IDE problem because when i tested it using my phone, the program stopped(error). Please take a look of the error below: java.lang.NullPointerException at android.widget.LinearLayout.forceUniformHeight(LinearLayout.java:1380) at android.widget.LinearLayout

问题 i have installed: 1:sony ericsson pc companion 2:SEMC_Signed usb Driver 3.updated my eclipse->available packages.. but while running program it will not detect the phone? 回答1: A few things to try: Make sure you don't have one of those cheap $2 knockoff USB interface cables. I banged my head for an hour or two before I realized the reason my PC wouldn't see my phone is because of my cable. Drop to command prompt, type adb kill-server and then adb devices to restart the adb server. Make sure

问题 I can customize the background of the selected option on a spinner dropdown using: <item name="android:spinnerStyle">@style/customSpinner</item> <style name="customSpinner" parent="@android:style/Widget.Holo.Light.Spinner"> <item name="android:textColor">#000000</item> <item name="android:background">#000000</item> </style> But I can't manage to change the background and textcolor of the list of options that the dropdown has. How do I achieve that? 回答1: adapter.setDropDownViewResource(R

问题 Since Android 23, the android:foreground XML attribute (and corresponding setForeground() method) should be available to all Views, and not just FrameLayout instances as was previously the case. Yet, for some reason, whenever I create a Button instance which inherits from TextView -> View, I can't seem to get a foreground to show at all. Here is an example button definition that doesn't work appear to show the foreground: <Button android:layout_width="match_parent" android:layout_height="wrap

问题 I have a ListView created inside a fragment, and it has a search filter, the problem is XML layout showing fine in android studio but when running in the emulator or phone it's showing differently (not properly as I aligned) and also when I click the SearchView it goes under the tab navigation. Can anyone tell how to fix this? This is the fragment: import android.content.Context; import android.os.Bundle; import android.util.Log; import android.view.LayoutInflater; import android.view.View;

问题 I need to create a layout as shown in the image. The rounded button with the arrow needs to be exactly between the blue and the gray background. I'm having difficulties placing it without specifying the margins precisely, which is something I don't want to do because there is no guarantee it will look good on all resolutions and devices. I would appreciate an xml sample for that Thanks! 回答1: Use the desired drawable.. hope it works.. you can set width and height according to your need. <?xml

问题 This is what my floating action button is showing rather that just showing the actual circle part of the image, it tries to fit the background of my .png file into the floating action button. here is my xml code: <android.support.design.widget.FloatingActionButton android:id="@+id/addToKitchenButton" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_margin="16dp" android:layout_gravity="bottom|end" android:layout_alignParentBottom="true" android:layout

问题 I am using umano AndroidSlidingUpPanel in my Android project. Here I am using Google Map as my main content. Follow is the relevant XML file. <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" tools:context=".DemoActivity" > <com.mypkg.name.SlidingUpPanelLayout xmlns:sothree="http://schemas.android.com/apk/res-auto" android:id="@+id/sliding_layout"