CODEWITHSUNDEEP
androidhtmlbuttonandroid-activityonclick
Connor
Connor

Reputation: 211

How to open blank html page when button is pressed on android

So I've gone through the basic tutorial and I've read up on activities and UI listeners.

However I'm still unsure on how to open an HTML page when I select a button.

What I think I have to do is, make an HTML file and store it in the res/layout folder, create an activity which is connected to the HTML file. Then I'm not sure what to do. Where do I call the OnClickListener function and when do I handle the event of the button being clicked?

Upvotes: 1

Views: 1014

Answers (1)

CommonsWare
CommonsWare

Reputation: 1007474

You really should consider starting with something simpler, as an apparent newcomer to Android.

Be that as it may...

First, you need to decide where the "HTML page" is: on the phone, or on the Internet. For right now, the correct answer is "on the Internet". You will need the URL for it (e.g., http://www.ohai.com/kthxbye.html).

Then, you need to create a layout file, in the res/layout/ folder, containing your Button. This is not an HTML file -- it is an Android layout file. Assuming you are going to run on Android 1.6 and newer devices, you can add an attribute to the <Button> element, named android:onClick, that will name a method in your soon-to-be-written Activity class. If you are just working with a new project, you might as well just modify the res/layout/main.xml file that is supplied to you to have this Button.

Then, you need to create an Activity class. Your project hopefully already has an Activity class set up for you; if not, you will need to create one yourself. In onCreate(), use setContentView(R.layout.main) (or whatever) to load up the layout file.

Add a method, of the name you specified in android:onClick, to your Activity, returning void and taking a View as a parameter. In there, add in a line like:

startActivity(new Intent(this, Uri.parse("...")));

where ... is replaced with the URL to your HTML file.

Now, it is possible to have the HTML baked into your application, but then you will have a fair bit of difficulty getting the browser application to view it, since that application has no right to your application's files. There are a few ways to deal with that, all of which are relatively complicated.

Upvotes: 2

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