Use UIAutomator to get system Screenshot

[NitroG42]

Screengrab looks awesome, but there is just a little quirk, the systembar is not shown (except for the color), and also the button bar (of buttonless devices like nexus) are only a black rectangle.

I don't know if you have some ways to workaround that (like adding the bar manually using command like convert), but if you don't, you could use UIAutomator.

It provides a method takeScreenshot(File) from the class UIDevice that take a complete screenshot of the device, system bar and button bar included.

It requires a minSdk 18, but it's easy to work around that (using a product flavor, for example).

[amostyaev]

Great idea!

Also current implementation doesn't capture shadow below the toolbar. UiDevice.takeScreenshot(File) does that.

[trevor-e]

Yea, seems like screengrab doesn't capture shadows anywhere, like for CardView too. Maybe it would make sense to expose how screengrab creates the screenshot files? Right now they're all private static methods which I had to copy over to my project in order to use UiDevice.

[mfurtak]

Thanks for the reports and suggestions, all. This is definitely on our short list of things to address!

[simplysoft]

We had also to workaround the issue by coping some private code from the Screengrab file and the use UiAutomator to take the screenshot. In the end the actual screenshot method looks like this:

Bitmap bitmap = InstrumentationRegistry.getInstrumentation().getUiAutomation().takeScreenshot();

File file = screenshotFile(name);
OutputStream fos = null;
try {
    fos = new BufferedOutputStream(new FileOutputStream(file));
    bitmap.compress(Bitmap.CompressFormat.PNG, FULL_QUALITY, fos);
    Chmod.chmodPlusR(file);
} finally {
    bitmap.recycle();
    if (fos != null) {
        fos.close();
    }
}

while screenshotFile was taken from the Screengab file to match the convetion, this way the tool it will happily take the UiAutomator screenshot instead of the own ones:

private static File screenshotFile(String screenshotName) throws IOException {
        File screenshotDirectory = getFilesDirectory(InstrumentationRegistry.getTargetContext(), Locale.getDefault());
        String screenshotFileName = System.currentTimeMillis() + NAME_SEPARATOR + screenshotName + EXTENSION;
        return new File(screenshotDirectory, screenshotFileName);
    }

[VictorJava]

Hi,
I have the same problem.

I following suggestion simplysoft(previous message).
This works, but when I have DialogFragment and ProgressDialog in the same time - I cant capture ProgressDialog. It isnt visible on screen.
In another words. If I have two dialogs the top isn`t captured.

Could you help me?

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