Main.java Source code

Java tutorial

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * android-test-lib https://github.com/twofortyfouram/android-test
 * Copyright 2014 two forty four a.m. LLC
 *
 * 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.
 */

import android.app.Activity;

import android.os.Looper;
import android.support.annotation.NonNull;

import java.lang.reflect.Field;

public class Main {
    /**
     * Helper to get the Activity result code.    This must only be called on the main thread.
     *
     * @param activity Activity whose result code is to be obtained.
     * @return Result code of the Activity.
     */
    public static int getActivityResultCode(@NonNull final Activity activity) {
        if (activity == null) {
            throw new IllegalArgumentException("activity cannot be null"); //$NON-NLS-1$
        }

        if (Looper.getMainLooper() != Looper.myLooper()) {
            throw new AssertionError("Must only be called on the main thread");
        }

        /*
         * This is a hack to obtain the Activity result code. There is no official way to check this using the Android
         * testing frameworks, so accessing the internals of the Activity object is the only way. This could
         * break on newer versions of Android.
         */

        try {
            final Field resultCodeField = Activity.class.getDeclaredField("mResultCode"); //$NON-NLS-1$
            resultCodeField.setAccessible(true);
            return ((Integer) resultCodeField.get(activity)).intValue();
        } catch (final Exception e) {
            throw new RuntimeException(e);
        }
    }
}