com.jt.fragutils.FragmentScreenViewHelper.java Source code

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Here is the source code for com.jt.fragutils.FragmentScreenViewHelper.java

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/*
 * Copyright (C) 2015 J.T. Gilkeson
 *
 * 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.jt.fragutils;

import android.content.res.Configuration;
import android.support.v4.app.Fragment;

/**
 * Helper class to keep track of whether fragment has been rotated vs being freshly viewed.
 */
public class FragmentScreenViewHelper {
    private int mOrientation = Configuration.ORIENTATION_UNDEFINED;

    /**
     * Call this method from onResume to check whether this is a new screen view (first time load
     * or return from background - Not an orientation change)
     *
     * @param context Fragment
     * @return whether this is a new screen view (not an orientation change)
     */
    public boolean isNewScreenView(Fragment context) {
        boolean bNewView = true;

        int iNewOrientation = context.getResources().getConfiguration().orientation;
        if ((mOrientation != Configuration.ORIENTATION_UNDEFINED) && (iNewOrientation != mOrientation)) {
            bNewView = false;
        }

        // Set the new orientation
        mOrientation = iNewOrientation;

        return bNewView;
    }
}