Fixes #1963229. Introduces Context#isRestricted().
A restricted Context is a special type of Context that prevents specific features
from being used. For instance, android:onClick, used by View, can be dangerous when
used from within apps widgets. By using a restricted Context to inflate apps widgets,
widgets providers are prevented from using android:onClick.
diff --git a/core/java/android/view/View.java b/core/java/android/view/View.java
index b3180ca..ff8868b 100644
--- a/core/java/android/view/View.java
+++ b/core/java/android/view/View.java
@@ -1996,6 +1996,11 @@
mMinHeight = a.getDimensionPixelSize(attr, 0);
break;
case R.styleable.View_onClick:
+ if (context.isRestricted()) {
+ throw new IllegalStateException("The android:onClick attribute cannot "
+ + "be used within a restricted context");
+ }
+
final String handlerName = a.getString(attr);
if (handlerName != null) {
setOnClickListener(new OnClickListener() {