A android display utility

DisplayUtils.java

/**
 * Copyright (C) 2014 Jay.
 *
 * All Rights Reserved.
 */

package com.tryear.jandroid.lib.util;

import android.app.Activity;
import android.content.Context;
import android.content.res.Resources;
import android.graphics.Rect;
import android.util.DisplayMetrics;
import android.util.TypedValue;

import com.jay.android.lib.res.ResourcesUtils;

/**
 * Description
 * 
 * @author Jay, created by Jay on 2014-01-22.
 */
public class DisplayUtils {
    private static final String TAG = "DisplayUtils";
    private static final boolean LOCAL_DEBUG = true;

    public static String dump(Context context) {
        DisplayMetrics displaysMetrics = context.getResources().getDisplayMetrics();
        String info = displaysMetrics.toString() + ", densityDpi=" + displaysMetrics.densityDpi;
        return info;
    }

    /**
     * retrieve Display Metrics
     * 
     * @param context
     * @return
     */
    public static DisplayMetrics getDisplayMetrics(Context context) {
        return displaysMetrics = context.getResources().getDisplayMetrics();
    }

    public static float getDisplayWidth(Context context) {
        DisplayMetrics displaysMetrics = context.getResources().getDisplayMetrics();
        return displaysMetrics.widthPixels;
    }

    public static float getDisplayHeight(Context context) {
        DisplayMetrics displaysMetrics = context.getResources().getDisplayMetrics();
        return displaysMetrics.heightPixels;
    }

    public static int getStatusBarHeight1(Context context) {
        int statusBarHeight = 0;
        try {
            Rect frame = new Rect();
            Activity activity = (Activity) context;
            activity.getWindow().getDecorView().getWindowVisibleDisplayFrame(frame);
            statusBarHeight = frame.top;
            return statusBarHeight;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return statusBarHeight;
    }

    public static int getStatusBarHeight2(Context context) {
        int statusBarHeight = 0;
        Class<?> c = null;
        Object obj = null;
        java.lang.reflect.Field field = null;
        try {
            c = Class.forName("com.android.internal.R$dimen");
            obj = c.newInstance();
            field = c.getField("status_bar_height");
            int x = Integer.parseInt(field.get(obj).toString());
            statusBarHeight = context.getResources().getDimensionPixelSize(x);
            return statusBarHeight;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return statusBarHeight;
    }
    
    public static int getStatusBarHeight(Context context) {
        int statusBarHeight = 0;// 25 dip
        int resourceId = context.getResources().getIdentifier("status_bar_height", "dimen", "android");
        if (resourceId > 0) {
            statusBarHeight = getResources().getDimensionPixelSize(resourceId);
        }
        return statusBarHeight;
    }

    public static int getNavigationBarHeight(Context context) {// 48 dip
        Resources resources = context.getResources();
        int resourceId = resources.getIdentifier("navigation_bar_height",
                "dimen", "android");
        if (resourceId > 0) {
            return resources.getDimensionPixelSize(resourceId);
        }
        return 0;
    }
    
    public int getActionBarHeight(Context context) {
        int actionBarHeight = 0; // 48 dip
        TypedValue tv = new TypedValue();
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
            if (context.getTheme().resolveAttribute(android.R.attr.actionBarSize, tv, true)) {
                actionBarHeight = TypedValue.complexToDimensionPixelSize(tv.data, context.getResources().getDisplayMetrics());
            }
        } else {
            actionBarHeight = TypedValue.complexToDimensionPixelSize(tv.data, context.getResources().getDisplayMetrics());
        }
        return actionBarHeight;
    }
}