Created
May 11, 2016 09:52
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DisplayUtils - simple class, which contains methods for calculating screen dimensions
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| import android.content.Context; | |
| import android.content.res.Resources; | |
| import android.content.res.TypedArray; | |
| import android.graphics.Point; | |
| import android.graphics.Rect; | |
| import android.support.annotation.NonNull; | |
| import android.util.DisplayMetrics; | |
| import android.view.Display; | |
| import android.view.View; | |
| import android.view.WindowManager; | |
| import your.packagename.R; | |
| public class DisplayUtils { | |
| public static float convertDpToPixel(float dp, @NonNull Context context) { | |
| Resources resources = context.getResources(); | |
| DisplayMetrics metrics = resources.getDisplayMetrics(); | |
| return dp * (metrics.densityDpi / 160.f); | |
| } | |
| public static float convertPixelsToDp(float px, @NonNull Context context) { | |
| Resources resources = context.getResources(); | |
| DisplayMetrics metrics = resources.getDisplayMetrics(); | |
| return px / (metrics.densityDpi / 160.f); | |
| } | |
| public static Point getWindowSize(@NonNull Context context) { | |
| WindowManager windowManager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE); | |
| Display defaultDisplay = windowManager.getDefaultDisplay(); | |
| final Point size = new Point(); | |
| defaultDisplay.getSize(size); | |
| return size; | |
| } | |
| public static Rect getViewRect(View view) { | |
| final Rect viewRect = new Rect(); | |
| view.getGlobalVisibleRect(viewRect); | |
| return viewRect; | |
| } | |
| public static int getActionBarHeight(@NonNull Context context) { | |
| TypedArray styledAttributes = context.getTheme().obtainStyledAttributes( | |
| new int[]{R.attr.actionBarSize}); | |
| int actionBarSize = styledAttributes.getDimensionPixelSize(0, 0); | |
| styledAttributes.recycle(); | |
| return actionBarSize; | |
| } | |
| } |
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