Make an Item Stick to the Bottom Using Flex in React-Native

Make an item stick to the bottom using flex in react-native

In React Native, the default value of flexDirection is column (unlike in CSS, where it is row).

Hence, in flexDirection: 'column' the cross-axis is horizontal and alignSelf works left/right.

To pin your footer to the bottom, apply justifyContent: 'space-between' to the container

How to make component stick to bottom in ScrollView but still alow other content to push it down

Use flexGrow instead of flex. Example code is given bellow.

<ScrollView 
  contentContainerStyle={{ 
  flexGrow: 1, 
  flexDirection: 'column', 
  justifyContent: 'space-between'
}}>
  <View style={{ width: 50, height: 1000, backgroundColor:'orange' }} />
  <View style={{ width: 50, height: 50, backgroundColor:'black'}} />
  <View style={{ width: 50, height: 50, backgroundColor:'blue'}} />
</ScrollView>

Here is the screenshot

Flex-end does not push a view all the way to the bottom

In standard CSS the default flex-direction is row. But in React the default is column.

Therefore, align-self, which operates along the cross axis, is attempting to shift your button horizontally. You need it to shift vertically.

Either switch to row-direction, use an auto margin, or use justify-content: space-between.

References:

• React Native documentation: flex-direction
• Methods for Aligning Flex Items along the Main Axis
• Methods for Aligning Flex Items along the Cross Axis

How can you float: right in React Native?

why does the Text take up the full space of the View, instead of just the space for "Hello"?

Because the View is a flex container and by default has flexDirection: 'column' and alignItems: 'stretch', which means that its children should be stretched out to fill its width.

(Note, per the docs, that all components in React Native are display: 'flex' by default and that display: 'inline' does not exist at all. In this way, the default behaviour of a Text within a View in React Native differs from the default behaviour of span within a div on the web; in the latter case, the span would not fill the width of the div because a span is an inline element by default. There is no such concept in React Native.)

How can the Text be floated / aligned to the right?

The float property doesn't exist in React Native, but there are loads of options available to you (with slightly different behaviours) that will let you right-align your text. Here are the ones I can think of:

1. Use textAlign: 'right' on the Text element

<View>
  <Text style={{textAlign: 'right'}}>Hello, World!</Text>
</View>

(This approach doesn't change the fact that the Text fills the entire width of the View; it just right-aligns the text within the Text.)

2. Use alignSelf: 'flex-end' on the Text

<View>
  <Text style={{alignSelf: 'flex-end'}}>Hello, World!</Text>
</View>

This shrinks the Text element to the size required to hold its content and puts it at the end of the cross direction (the horizontal direction, by default) of the View.

3. Use alignItems: 'flex-end' on the View

<View style={{alignItems: 'flex-end'}}>
  <Text>Hello, World!</Text>
</View>

This is equivalent to setting alignSelf: 'flex-end' on all the View's children.

4. Use flexDirection: 'row' and justifyContent: 'flex-end' on the View

<View style={{flexDirection: 'row', justifyContent: 'flex-end'}}>
  <Text>Hello, World!</Text>
</View>

flexDirection: 'row' sets the main direction of layout to be horizontal instead of vertical; justifyContent is just like alignItems, but controls alignment in the main direction instead of the cross direction.

5. Use flexDirection: 'row' on the View and marginLeft: 'auto' on the Text

<View style={{flexDirection: 'row'}}>
  <Text style={{marginLeft: 'auto'}}>Hello, World!</Text>
</View>

This approach is demonstrated, in the context of the web and real CSS, at https://stackoverflow.com/a/34063808/1709587.

6. Use position: 'absolute' and right: 0 on the Text:

<View>
  <Text style={{position: 'absolute', right: 0}}>Hello, World!</Text>
</View>

Like in real CSS, this takes the Text "out of flow", meaning that its siblings will be able to overlap it and its vertical position will be at the top of the View by default (although you can explicitly set a distance from the top of the View using the top style property).

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Naturally, which of these various approaches you want to use - and whether the choice between them even matters at all - will depend upon your precise circumstances.

How to make div container with flex use only one column

Have you selected (?):

width: 100%;
display: flex;
flex-direction: column;
align-content: flex-start;

justify-content will not work in the direction "left" or "right" at column, this will just change "top" and "bottom" (or center). You need align-content for example.

Bottom content covers the main content when keyboard is visible

AvoidSoftInputView solves the problem and it is very easy to use.

Project: https://github.com/mateusz1913/react-native-avoid-softinput

Documentation: https://mateusz1913.github.io/react-native-avoid-softinput/

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