From cf5df22ccefae252a77b21119d56f86eeac5217c Mon Sep 17 00:00:00 2001
From: conradchen <conradchen@google.com>
Date: Wed, 17 Nov 2021 15:36:46 +0000
Subject: [PATCH] [TextField] Fix crashes when text field size is too large

When we try to draw cutout on text field borders, we draw the stroke on a bitmap first. However if the text field is too large, the bitmap size will be too large and cannot be drawn back to the real canvas, which causes crashes.

Adds a workaround/fallback solution to avoid the crash.

PiperOrigin-RevId: 410523013
---
 .../material/textfield/CutoutDrawable.java    | 31 ++++++++++++-------
 1 file changed, 19 insertions(+), 12 deletions(-)

diff --git a/lib/java/com/google/android/material/textfield/CutoutDrawable.java b/lib/java/com/google/android/material/textfield/CutoutDrawable.java
index b71dc07560b..8169a3ad092 100644
--- a/lib/java/com/google/android/material/textfield/CutoutDrawable.java
+++ b/lib/java/com/google/android/material/textfield/CutoutDrawable.java
@@ -96,18 +96,25 @@ protected void drawStrokeShape(@NonNull Canvas canvas) {
       super.drawStrokeShape(canvas);
       return;
     }
-    Bitmap bitmap =
-        Bitmap.createBitmap(canvas.getWidth(), canvas.getHeight(), Bitmap.Config.ARGB_8888);
-    Canvas tempCanvas = new Canvas(bitmap);
-
-    // Draw the stroke on the temporary canvas
-    super.drawStrokeShape(tempCanvas);
-
-    // Draw mask for the cutout.
-    tempCanvas.drawRect(cutoutBounds, cutoutPaint);
-
-    // Draw the temporary canvas back to the original canvas
-    canvas.drawBitmap(bitmap, 0, 0, null);
+    try {
+      Bitmap bitmap =
+          Bitmap.createBitmap(canvas.getWidth(), canvas.getHeight(), Bitmap.Config.ARGB_8888);
+      Canvas tempCanvas = new Canvas(bitmap);
+
+      // Draw the stroke on the temporary canvas
+      super.drawStrokeShape(tempCanvas);
+
+      // Draw mask for the cutout.
+      tempCanvas.drawRect(cutoutBounds, cutoutPaint);
+
+      // Draw the temporary canvas back to the original canvas
+      canvas.drawBitmap(bitmap, 0, 0, null);
+    } catch (RuntimeException e) {
+      // Bitmap is too big to draw, directly paint cutout on the canvas.
+      // TODO(b/205774869): find a better way to only draw part of the stroke to avoid the issue.
+      super.drawStrokeShape(canvas);
+      canvas.drawRect(cutoutBounds, cutoutPaint);
+    }
   }
 
   private void preDraw(@NonNull Canvas canvas) {