src/com/android/documentsui/base/Display.java

/*
 * Copyright (C) 2016 The Android Open Source Project
 *
 * 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.android.documentsui.base;

import android.app.Activity;
import android.content.Context;
import android.graphics.Point;
import android.util.TypedValue;

/*
 * Convenience class for getting display related attributes
 */
public final class Display {
    /*
     * Returns the screen width in raw pixels.
     */
    public static float screenWidth(Activity activity) {
        Point size = new Point();
        activity.getWindowManager().getDefaultDisplay().getRealSize(size);
        return size.x;
    }

    /*
     * Returns logical density of the display.
     */
    public static float density(Context context) {
        return context.getResources().getDisplayMetrics().density;
    }

    /*
     * Returns action bar height in raw pixels.
     */
    public static float actionBarHeight(Context context) {
        int actionBarHeight = 0;
        TypedValue tv = new TypedValue();
        if (context.getTheme().resolveAttribute(android.R.attr.actionBarSize, tv, true)) {
            actionBarHeight = TypedValue.complexToDimensionPixelSize(tv.data,
                    context.getResources().getDisplayMetrics());
        }
        return actionBarHeight;
    }
}