android-layout

问题 I'm having an issue in my app where the error popup on EditTexts shows but the text is not visible. It looks something like this: This happens with all the EditText s in my app. Here's an example layout XML Layout: <?xml version="1.0" encoding="utf-8"?> <android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/main_content"

问题 How do I listen on a View to obtain its XY coordination if it is moving or its XY position change? The View is not necessary to be dragged (or by user touch event), it may change if the orientation change or pushed (upward) by the showing keyboard or etc. I want to know its updated XY coordination when it changes, how can I do that? 回答1: You may do something like this final View activityRootView = findViewById(R.id.mainLayout); activityRootView.getViewTreeObserver().addOnGlobalLayoutListener(

问题 I have a custom Circular Progressbar. This is the drawable I have for it to be determinate: <?xml version="1.0" encoding="utf-8"?> <layer-list xmlns:android="http://schemas.android.com/apk/res/android"> <item android:id="@android:id/secondaryProgress"> <shape android:innerRadiusRatio="6" android:shape="ring" android:thicknessRatio="20.0" android:useLevel="true"> <gradient android:centerColor="#999999" android:endColor="#999999" android:startColor="#999999" android:type="sweep" /> </shape> <

问题 I had a strange problems during the set padding to EditText . xml looks like this: <EditText android:layout_width="270dp" android:layout_height="55dp" android:ems="10" android:id="@+id/etEmail" android:textStyle="bold" android:layout_gravity="center_vertical" android:textColor="#FFFFFF" android:hint="Or Use your Email" android:inputType="textEmailAddress" android:layout_alignLeft="@+id/textView6" android:layout_alignStart="@+id/textView6" android:textColorHint="#FFFFFF" android:background="

问题 I had a strange problems during the set padding to EditText . xml looks like this: <EditText android:layout_width="270dp" android:layout_height="55dp" android:ems="10" android:id="@+id/etEmail" android:textStyle="bold" android:layout_gravity="center_vertical" android:textColor="#FFFFFF" android:hint="Or Use your Email" android:inputType="textEmailAddress" android:layout_alignLeft="@+id/textView6" android:layout_alignStart="@+id/textView6" android:textColorHint="#FFFFFF" android:background="

问题 Suppose I have a custom setter method where I need two arguments: @BindingAdapter({"imageUrl", "placeholder"}) public static void loadImage(ImageView imageView, String imageUrl, Drawable drawable) { Picasso.with(imageView.getContext()).load(imageUrl).placeholder(drawable).into(imageView); } What would the corresponding xml look like? 回答1: Looks like it can be done like this: <ImageView app:imageUrl=“@{data.imageUrl}” app:placeholder=“@{@drawable/placeholder}”/> see http://developer.android

问题 Suppose I have a custom setter method where I need two arguments: @BindingAdapter({"imageUrl", "placeholder"}) public static void loadImage(ImageView imageView, String imageUrl, Drawable drawable) { Picasso.with(imageView.getContext()).load(imageUrl).placeholder(drawable).into(imageView); } What would the corresponding xml look like? 回答1: Looks like it can be done like this: <ImageView app:imageUrl=“@{data.imageUrl}” app:placeholder=“@{@drawable/placeholder}”/> see http://developer.android

问题 I have two styles.xml, one in values another in values-v21 resource folders. values/styles.xml content is: <resources> <style name="AppTheme.NoActionBar"> <item name="windowActionBar">false</item> <item name="windowNoTitle">true</item> </style> </resources> values-v21/styles.xml content is: <resources> <style name="AppTheme.NoActionBar"> <item name="windowActionBar">false</item> <item name="windowNoTitle">true</item> <item name="android:windowDrawsSystemBarBackgrounds">true</item> <item name=

问题 I have two styles.xml, one in values another in values-v21 resource folders. values/styles.xml content is: <resources> <style name="AppTheme.NoActionBar"> <item name="windowActionBar">false</item> <item name="windowNoTitle">true</item> </style> </resources> values-v21/styles.xml content is: <resources> <style name="AppTheme.NoActionBar"> <item name="windowActionBar">false</item> <item name="windowNoTitle">true</item> <item name="android:windowDrawsSystemBarBackgrounds">true</item> <item name=

问题 I need to change the horisontal position of Spinner's dropdown list. here's the screenshot : and I want this dropdown list to go in one line under the main icon/text so it would look fine As on the picture : here's what I do in xml : <Spinner android:id="@+id/tvHeader" style="@style/spinner_style" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignBottom="@+id/ver_main_donate_background_tile_long" android:layout_alignTop="@+id/ver_main_donate