layout-inflater - w3toppers.com

NPE while inflating layout (Attempt to invoke virtual method ‘boolean java.lang.String.equals(java.lang.Object)’ on a null object reference)

Change <view to <View, because view is not about empty view. It’s for custom view defined through class attr, like below: <view android:layout_width=”wrap_content” android:layout_height=”wrap_content” class=”com.your.package.YourCustomView” /> And you got Caused by: java.lang.NullPointerException: Attempt to invoke virtual method ‘boolean java.lang.String.equals(java.lang.Object)’ on a null object reference because of LayoutInflater tries to parse class attr: LayoutInflater source code … Read more

What does LayoutInflater in Android do?

The LayoutInflater class is used to instantiate the contents of layout XML files into their corresponding View objects. In other words, it takes an XML file as input and builds the View objects from it.

How to inflate one view with a layout

I’m not sure I have followed your question- are you trying to attach a child view to the RelativeLayout? If so you want to do something along the lines of: RelativeLayout item = (RelativeLayout)findViewById(R.id.item); View child = getLayoutInflater().inflate(R.layout.child, null); item.addView(child);

How to change the background color of the options menu?

After spending a considerable amount of time trying all the options, the only way I was able to get an app using AppCompat v7 to change the overflow menu background was using the itemBackground attribute: <style name=”AppTheme” parent=”Theme.AppCompat.Light.DarkActionBar”> … <item name=”android:itemBackground”>@color/overflow_background</item> … </style> Tested from API 4.2 to 5.0.