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Finishing Up
2:54In this video we'll finish up our Options Menu and finally see the colors change!
We, just finished hooking up our next
image button and our color button.
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Now let's finish up the app, by hooking
up all the buttons on the overflow menu.
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Let's start by adding a case for
when the red button is clicked.
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Case R.id.red, and
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add a break statement.
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Then inside the case, let's toggle
the value of our red variable,
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red = not red.
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And then, call the updateColors method.
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Lastly, since our checkboxes
don't do anything themselves,
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we need to manually update them.
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So let's call item,
which remember refers to our red menu
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item.setChecked and pass in red to
make it match the underlying variable.
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Awesome!
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Now that we've got red taken care of,
let's copy and paste this block two times.
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And then, let's make this one for green.
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And, this one for blue.
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Finally, all that's left
is the reset button.
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Let's add one more case, for R.id.reset.
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And, let's add our break statement.
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And then,
to reset the image to its initial state,
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we just need to call
Imageview.clearColorFilter.
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We should also reset our red,
green, blue, and
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color variables to all be true,
which we can do on one line, like this.
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Red = green = blue = color = true.
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Lastly, since we've made
changes to these variables,
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we should also update the options menu.
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So, let's add a call to invalidate
options menu, and that should do it.
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We're ready to test the app.
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Let's run it.
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And then if we click on
one of our check boxes,
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it removes that color from the image and
the box is unchecked.
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Awesome.
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And if we click on the reset button
after clicking a few check boxes,
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the image goes back to normal and
the boxes get rechecked.
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Perfect.
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Great job putting together
this options menu.
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If you'd like to learn
more about options menus,
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check out the links in
the Teacher's notes below.
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And as always, if you have any questions
or would like to try your hand
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at answering other people's questions,
make your way over to the community.
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Until next time.
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