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— NFToa (@nftoa_) August 30, 2025
When a layout design starts from scratch, I certainly won't use Linear layout if it contains components with irregular layouts. But who would have thought that if an application we create develops and requires a floating action button to be placed there.
The bad thing is, the activity layout uses Linear Layout as its parent, it would be very messy if I had to change it to relative layout or constraint layout, hmm it would definitely mess up the arrangement of the components that are already there.
Well, after I did the Google Fu trick, it turns out there is still a solution to overcome this, namely by using Frame Layout, so the implementation will be like this.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:background="@drawable/background_serious" >
<include layout="@layout/toolbar"/>
<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<ListView android:id="@id/android:list"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:cacheColorHint="#00000000">
</ListView>
<android.support.design.widget.FloatingActionButton
android:id="@+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="end|bottom"
android:layout_margin="@dimen/fab_margin"
android:src="@drawable/ic_done" />
</FrameLayout>
</LinearLayout>Okay, that's about it, if you have a different shape, feel free to adjust it yourself, good luck!