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copied!<p>Use the following:</p> <pre><code> DisplayMetrics dm = new DisplayMetrics(); getWindowManager().getDefaultDisplay().getMetrics(dm); double x = Math.pow(mWidthPixels/dm.xdpi,2); double y = Math.pow(mHeightPixels/dm.ydpi,2); double screenInches = Math.sqrt(x+y); Log.d("debug","Screen inches : " + screenInches); </code></pre> <p>When mWidthPixels and mHeightPixels are taken from below code</p> <pre><code>private void setRealDeviceSizeInPixels() { WindowManager windowManager = getWindowManager(); Display display = windowManager.getDefaultDisplay(); DisplayMetrics displayMetrics = new DisplayMetrics(); display.getMetrics(displayMetrics); // since SDK_INT = 1; mWidthPixels = displayMetrics.widthPixels; mHeightPixels = displayMetrics.heightPixels; // includes window decorations (statusbar bar/menu bar) if (Build.VERSION.SDK_INT >= 14 && Build.VERSION.SDK_INT < 17) { try { mWidthPixels = (Integer) Display.class.getMethod("getRawWidth").invoke(display); mHeightPixels = (Integer) Display.class.getMethod("getRawHeight").invoke(display); } catch (Exception ignored) { } } // includes window decorations (statusbar bar/menu bar) if (Build.VERSION.SDK_INT >= 17) { try { Point realSize = new Point(); Display.class.getMethod("getRealSize", Point.class).invoke(display, realSize); mWidthPixels = realSize.x; mHeightPixels = realSize.y; } catch (Exception ignored) { } } </code></pre> <p>See this post for reference: <a href="https://stackoverflow.com/questions/1016896/how-to-get-screen-dimensions/15699681#15699681">Get screen dimensions in pixels</a></p>

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