com.facebook.react.views.text

Class TextInlineImageSpan

java.lang.Object

android.text.style.CharacterStyle

android.text.style.MetricAffectingSpan

android.text.style.ReplacementSpan

com.facebook.react.views.text.TextInlineImageSpan

All Implemented Interfaces:

android.text.style.UpdateAppearance, android.text.style.UpdateLayout

public class TextInlineImageSpan
extends android.text.style.ReplacementSpan

TextInlineImageSpan is a span for Images that are inside . It computes it's size based on the input size. When it is time to draw, it will use the Fresco framework to get the right Drawable and let that draw. Since Fresco needs to callback to the TextView that contains this, in the ViewManager, you must tell the Span about the TextView Note: It borrows code from DynamicDrawableSpan and if that code updates how it computes size or draws, we need to update this as well.

Constructor Summary

Constructors

Constructor and Description
TextInlineImageSpan(android.content.res.Resources resources, int height, int width, android.net.Uri uri)

Method Summary

Methods

Modifier and Type	Method and Description
void	draw(android.graphics.Canvas canvas, java.lang.CharSequence text, int start, int end, float x, int top, int y, int bottom, android.graphics.Paint paint)
android.graphics.drawable.Drawable	getDrawable()
int	getSize(android.graphics.Paint paint, java.lang.CharSequence text, int start, int end, android.graphics.Paint.FontMetricsInt fm)
void	onAttachedToWindow()
void	onDetachedFromWindow() The ReactTextView that holds this ImageSpan is responsible for passing these methods on so that we can do proper lifetime management for Fresco
void	onFinishTemporaryDetach()
void	onStartTemporaryDetach()
static void	possiblyUpdateInlineImageSpans(android.text.Spannable spannable, android.widget.TextView view) For TextInlineImageSpan we need to update the Span to know that the window is attached and the TextView that we will set as the callback on the Drawable.

Methods inherited from class android.text.style.ReplacementSpan

updateDrawState, updateMeasureState

Methods inherited from class android.text.style.MetricAffectingSpan

getUnderlying

Methods inherited from class android.text.style.CharacterStyle

wrap

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TextInlineImageSpan

public TextInlineImageSpan(android.content.res.Resources resources,
                   int height,
                   int width,
                   @Nullable
                   android.net.Uri uri)

Method Detail

onDetachedFromWindow

public void onDetachedFromWindow()

The ReactTextView that holds this ImageSpan is responsible for passing these methods on so that we can do proper lifetime management for Fresco

onStartTemporaryDetach

public void onStartTemporaryDetach()

onAttachedToWindow

public void onAttachedToWindow()

onFinishTemporaryDetach

public void onFinishTemporaryDetach()

getDrawable

@Nullable
public android.graphics.drawable.Drawable getDrawable()

getSize

public int getSize(android.graphics.Paint paint,
          java.lang.CharSequence text,
          int start,
          int end,
          android.graphics.Paint.FontMetricsInt fm)

Specified by:

getSize in class android.text.style.ReplacementSpan

draw

public void draw(android.graphics.Canvas canvas,
        java.lang.CharSequence text,
        int start,
        int end,
        float x,
        int top,
        int y,
        int bottom,
        android.graphics.Paint paint)

Specified by:

draw in class android.text.style.ReplacementSpan

possiblyUpdateInlineImageSpans

public static void possiblyUpdateInlineImageSpans(android.text.Spannable spannable,
                                  android.widget.TextView view)

For TextInlineImageSpan we need to update the Span to know that the window is attached and the TextView that we will set as the callback on the Drawable.

Parameters:

spannable - The spannable that may contain TextInlineImageSpans

view - The view which will be set as the callback for the Drawable