[TIMOB-25619] Android: Allow non-file TiBlob to be previewed

[garymathews]

• Allow non-file TiBlob to be previewed

TEST CASE

var win = Ti.UI.createWindow({ backgroundColor: 'green' });

win.addEventListener('postlayout', function () {
    win.toImage(function (blob) {
        if (!blob) return;

        win.backgroundColor = 'red';

        Ti.Media.previewImage({
            image: blob,
            success: function (e) {
                console.log('success, displaying preview');
            },
            error: function (e) {
                console.error('failed to display preview');
            },
        });
    });
});

win.open();

JIRA Ticket

[build]

	Messages
📖	💾 Here's the generated SDK zipfile.

Generated by 🚫 dangerJS

[jquick-axway]

CR: Pass

[ypbnv]

CR: Pass

[sgtcoolguy]

may want to consider refactoring this handling with the equivalent code in EmailDialogProxy. Basically in both instances you're trying to get a TiBlob converted to a File.

[jquick-axway]

For everyone's info, the way EmailDialogProxy is saving blobs to a temp file needs to be refactored too. It always saves blobs to the same filename. So, the last blob saved gets overwritten by the next blob saved to file.
https://jira.appcelerator.org/browse/TIMOB-25568

I recommend that we refactor our handling when addressing TIMOB-25568.

[sgtcoolguy]

my bad, I moved this test into the suite so there's a conflict now. You can move this to a ti.media.addontest.js or copy the ti/media.test front he suite and add this (or uncomment the variant of this I wrote using takeScreenshot which also exposed the issue).

[ssjsamir]

FR Passed Was able to see a a preview of non-file TiBlob

Test Steps:

• Created a titanium project with the build form this PR
• Added the above code in to the project
• Ran the project
• Was able to view the blob without any runtime errors (which were seen on older versions of the SDK
• Also saw the following in the console

[INFO] : success, displaying preview

Test Environment
APPC Studio: 5.0.0.201711280737
APPC CLI: 7.0.1
Device: Nexus 6p (8.1.0)
Operating System Name: Mac OS High Sierra
Operating System Version: 10.13
Node.js Version: 8.9.1

[garymathews]

no tests as previewImage() requires user input to dismiss