738049 - Use LayoutInflater.Factory to optimize rendering custom views

Status: RESOLVED FIXED

(Firefox for Android Graveyard :: Keyboards and IME, defect)

Description

[Sriram Ramasubramanian [:sriram]]

There is a LayoutInflater associated with every activity. This layout inflater is responsible for inflating views from XML. This is aware of "android.widget" namescape for creating Views. However, our custom views, like AboutHomeSection, take a round about way:
1. I tries to search if any factory can supply this.
2. It tried to find in default namespace.
3. It tries to resolve the view based on "package name" and "class name".

This can be avoided by asking it to search in the factory we supply to it. This will optimize the search done by android while inflating our custom views.

Comment 1

[Sriram Ramasubramanian [:sriram]]

Attachment: Patch

This patch uses a LayoutInflater.Factory. I felt it's better to use a singleton class that handles all the custom views, than every activity "implementing" LayoutInflater.Factory. 

This is the first attempt at it. Ideally, its better to hash all the view names in a HashMap for easier access.

Comment 2

[Mark Finkle (:mfinkle) (use needinfo?)]

Comment on attachment 608116 [details] [diff] [review]
Patch


>diff --git a/mobile/android/base/GeckoViewsFactory.java b/mobile/android/base/GeckoViewsFactory.java

>+    private static final String GECKO_VIEW_IDENTIFIER = "org.mozilla.gecko.";
>+
>+    private static final int GECKO_VIEW_IDENTIFIER_LENGTH = GECKO_VIEW_IDENTIFIER.length();

remove the extra blank line

>+    public View onCreateView(String name, Context context, AttributeSet attrs) {
>+
>+        if (!TextUtils.isEmpty(name) && name.startsWith(GECKO_VIEW_IDENTIFIER)) {

remove the extra blank line

>+            if (TextUtils.equals(viewName, "AboutHomeSection"))
>+                return new AboutHomeSection(context, attrs);
>+            else if (TextUtils.equals(viewName, "AwesomeBarTabs"))
>+                    return new AwesomeBarTabs(context, attrs);
>+            else if (TextUtils.equals(viewName, "FormAssistPopup"))
>+                    return new FormAssistPopup(context, attrs);
>+            else if (TextUtils.equals(viewName, "LinkTextView"))
>+                    return new LinkTextView(context, attrs);

indented too far in the "else if" blocks

r+ with nits fixed

Comment 3

[Sriram Ramasubramanian [:sriram]]

http://hg.mozilla.org/integration/mozilla-inbound/rev/b28c614c6fe3

Comment 4

[Ed Morley [:emorley]]

Please can you set the target milestone & assignee when landing on inbound, along the lines of http://blog.bonardo.net/2012/03/23/how-you-can-help-mozilla-inbound-sheriffs-when-pushing :-)

https://hg.mozilla.org/mozilla-central/rev/b28c614c6fe3

Comment 5

[Mark Finkle (:mfinkle) (use needinfo?)]

https://hg.mozilla.org/releases/mozilla-aurora/rev/bd0d926a44f4