processing-android-website/reference/environment/activity.html at install-button · processing/processing-android-website · GitHub

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<!DOCTYPE html>
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            <h1 class="title">Processing for Android</h1>
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                <h2>Getting state of application</h2>
                <p>We can obtain a reference to the main <a href="https://developer.android.com/reference/android/app/Activity" target="_black">activity</a> or <a href="https://developer.android.com/reference/android/content/Context" target="_black">context</a> containing the sketch using the getActivity() and getContext() functions:
                </p>

                <pre><code>
<span style="color: #33997E;">import</span> android.app.Activity;
<span style="color: #33997E;">import</span> android.content.Context;

<span style="color: #33997E;">void</span> <span style="color: #006699;"><b>setup</b></span>() {
&nbsp;&nbsp;Activity&nbsp;activity&nbsp;=&nbsp;getActivity();
}
                </code></pre>

                <p>The activity will be available only for sketches run as regular or VR apps, since wallpapers and watch faces are services that are not associated to an activity. getContext() should return the context of the application or service in any situation.
                </p>

                <pre><code>
<span style="color: #33997E;">import</span> android.content.Context;

<span style="color: #33997E;">void</span> <span style="color: #006699;"><b>setup</b></span>() {
&nbsp;&nbsp;Context&nbsp;context&nbsp;=&nbsp;getContext();
}
                </code></pre>

                <p>When an activity is associated to our sketch, we can also retrive its <a href="https://developer.android.com/reference/android/app/FragmentManager" target="_black">fragment manager</a> and <a href="https://developer.android.com/reference/android/view/Window" target="_black">window</a>:
                </p>

                <pre><code>
<span style="color: #33997E;">import</span> android.app.FragmentManager;
<span style="color: #33997E;">import</span> android.view.Window;

<span style="color: #33997E;">void</span> <span style="color: #006699;"><b>setup</b></span>() {
&nbsp;&nbsp;FragmentManager&nbsp;manager&nbsp;=&nbsp;getFragmentManager();
&nbsp;&nbsp;Window&nbsp;window&nbsp;=&nbsp;getWindow();
}
                </code></pre>

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