android-xml

Rendering issue in XML preview : Unable to locate mode 0 [duplicate]

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That’s problem with RecyclerView in com.android.support:design:25.0.0 Maybe there is some issue in that version. Changed version to 24.1.1 solved my problem. compile ‘com.android.support:appcompat-v7:24.1.1’ compile ‘com.android.support:support-v13:24.1.1’ compile ‘com.android.support:design:24.1.1’ in case you not have not removed the default provided gradle imports change this also androidTestCompile ‘com.android.support:support-annotations:24.2.1’

Android XML: android:elevation vs. app:elevation

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Hope I can help, Let’s talk with an example: <android.support.design.widget.FloatingActionButton android:layout_height=”wrap_content” android:layout_width=”wrap_content” … android:elevation=”@dimen/elevation_medium” /> The android:elevationattribute will work from the API level 21 and upper. <android.support.design.widget.FloatingActionButton android:layout_height=”wrap_content” android:layout_width=”wrap_content” … app:elevation=”@dimen/elevation_medium” /> In this case the app:elevation attribute belongs to the FloatingActionButton styleable, inside de Android Design Support Library which will work from version 4 … Read more

How to combine BottomAppBar + FAB with BottomNavigationView

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First Way Try this You can Create a CustomBottomNavigationView Here is the good article for CustomBottomNavigationView How I draw custom shapes in BottomNavigationView SAMPLE CODE import android.content.Context; import android.graphics.*; import android.support.design.widget.BottomNavigationView; import android.support.v4.content.ContextCompat; import android.util.AttributeSet; public class CustomBottomNavigationView extends BottomNavigationView { private Path mPath; private Paint mPaint; /** the CURVE_CIRCLE_RADIUS represent the radius of the … Read more

Plural definition is ignored for zero quantity

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According to the documentation : The selection of which string to use is made solely based on grammatical necessity. In English, a string for zero will be ignored even if the quantity is 0, because 0 isn’t grammatically different from 2, or any other number except 1 (“zero books”, “one book”, “two books”, and so … Read more

re-setting a TextView height programmatically

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You should change it via LayoutParams: LayoutParams params = (LayoutParams) textView.getLayoutParams(); params.height = 70; textView.setLayoutParams(params); EDIT You should not use sizes in pixels in you code, use dimensions for this: dimens.xml: <dimen name=”text_view_height”>50dp</dimen> In code: params.height = getResources().getDimensionPixelSize(R.dimen.text_view_height);

Android button with different background colors

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As your error states, you have to define drawable attibute for the items (for some reason it is required when it comes to background definitions), so: <?xml version=”1.0″ encoding=”utf-8″?> <selector xmlns:android=”http://schemas.android.com/apk/res/android”> <item android:state_pressed=”true” android:drawable=”@color/red”/> <!– pressed –> <item android:state_focused=”true” android:drawable=”@color/blue”/> <!– focused –> <item android:drawable=”@color/black”/> <!– default –> </selector> Also note that drawable attribute doesn’t … Read more

Programmatically change color of shape in layer list

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<layer-list xmlns:android=”http://schemas.android.com/apk/res/android”> <item android:id=”@+id/gradientDrawble”> // Give id <shape android:shape=”rectangle”> <solid android:color=”#000000″ /> // CHANGE THIS COLOR </shape> </item> <item android:left=”5dp”> <shape android:shape=”rectangle”> <solid android:color=”@color/bg” /> </shape> </item> </layer-list> Then in you code just add LayerDrawable layerDrawable = (LayerDrawable) getResources() .getDrawable(R.drawable.my_drawable); GradientDrawable gradientDrawable = (GradientDrawable) layerDrawable .findDrawableByLayerId(R.id.gradientDrawble); gradientDrawable.setColor(color); // change color Update Oct-2016 getDrawable() is now … Read more

How to add a horizontal 1px line above image view in a relative layout?

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Just add the following line in your XML where ever you want it. <View android:background=”#ffffff” android:layout_width = “match_parent” android:layout_height=”1dp”/> Edit: Try this: <RelativeLayout android:id=”@+id/widget38″ android:layout_width=”wrap_content” android:layout_height=”wrap_content” android:layout_x=”108px” android:layout_y=”87px” > <View android:id=”@+id/separator” android:background=”#ffffff” android:layout_width = “fill_parent” android:layout_height=”1dip” android:layout_centerVertical =”true” android:layout_alignParentTop=”true”/> <ImageView android:id=”@+id/widget39″ android:layout_width=”wrap_content” android:layout_height=”wrap_content” android:layout_below=”@id/separator” android:layout_alignParentRight=”true” /> </RelativeLayout>

Android getMeasuredHeight returns wrong values !

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You’re calling measure incorrectly. measure takes MeasureSpec values which are specially packed by MeasureSpec.makeMeasureSpec. measure ignores LayoutParams. The parent doing the measuring is expected to create a MeasureSpec based on its own measurement and layout strategy and the child’s LayoutParams. If you want to measure the way that WRAP_CONTENT usually works in most layouts, call … Read more

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