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package com.mapbox.mapboxsdk.utils;
import android.content.Context;
import android.content.pm.ApplicationInfo;
import android.os.Looper;
import android.support.annotation.NonNull;
import com.mapbox.mapboxsdk.exceptions.CalledFromWorkerThreadException;
/**
* Utility class to verify if execution is running on the main thread.
* <p>
* Verification only runs for debug builds.
* </p>
*/
public class ThreadUtils {
private static Boolean debug;
/**
* Initialises the thread utils, verifies debug state of the consuming app.
*
* @param context Context hosting the Mapbox Maps SDK for Android
* @return this
*/
public static ThreadUtils init(@NonNull Context context) {
debug = (0 != (context.getApplicationInfo().flags & ApplicationInfo.FLAG_DEBUGGABLE));
return null;
}
/**
* Validates if execution is running on the main thread.
*
* @param origin the origin of the execution
*/
public static void checkThread(@NonNull String origin) {
if (debug == null) {
throw new IllegalStateException("ThreadUtils isn't correctly initialised");
}
if (debug) {
if (Looper.myLooper() != Looper.getMainLooper()) {
throw new CalledFromWorkerThreadException(
String.format("%s interactions should happen on the UI thread.", origin)
);
}
}
}
}
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