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/*
* Copyright (C) 2015 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.googlecode.android_scripting;
import android.content.Context;
import android.os.Handler;
import com.googlecode.android_scripting.future.FutureResult;
import java.util.concurrent.Callable;
public class MainThread {
private MainThread() {
// Utility class.
}
/**
* Executed in the main thread, returns the result of an execution. Anything that runs here should
* finish quickly to avoid hanging the UI thread.
*/
public static <T> T run(Context context, final Callable<T> task) {
final FutureResult<T> result = new FutureResult<T>();
Handler handler = new Handler(context.getMainLooper());
handler.post(new Runnable() {
@Override
public void run() {
try {
result.set(task.call());
} catch (Exception e) {
Log.e(e);
result.set(null);
}
}
});
try {
return result.get();
} catch (InterruptedException e) {
Log.e(e);
}
return null;
}
public static void run(Context context, final Runnable task) {
Handler handler = new Handler(context.getMainLooper());
handler.post(new Runnable() {
@Override
public void run() {
task.run();
}
});
}
}
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