CanvasCoders

Android NavigationBar Height Snippet public static int getNavigationBarHeight() { int result = 0; int resourceId = mApplicationContent.getResources().getIdentifier("navigation_bar_height", "dimen", "android"); if (resourceId > 0) { result = mApplicationContent.getResources().getDimensionPixelSize(resourceId); } return result; } Android Phone Statusbar height snippet public static int getStatusBarHeight() { int result = 0; int resourceId = mApplicationContent.getResources().getIdentifier("status_bar_height", "dimen", "android"); if (resourceId > 0) { result = mApplicationContent.getResources().getDimensionPixelSize(resourceId); } return result; }

Declare Permission in manifest file <uses-permission android:name="android.permission.INTERNET"> <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE">     Now Check using this function is network available or not public static boolean isNetWorkAvilable() { ConnectivityManager connectivityManager = (ConnectivityManager) mApplicationContent .getSystemService(Context.CONNECTIVITY_SERVICE); NetworkInfo activeNetInfo = connectivityManager.getActiveNetworkInfo(); if (activeNetInfo == null || !activeNetInfo.isAvailable()) { return false; } else { return true; } }

Save bitmap to file snippet public static String SaveToFile(Bitmap croppedImage,String fileName) { String directory="CanvasImages"; String path=Environment.getExternalStorageDirectory()+"/"+directory; File folder = new File(path); if(!folder.exists()) { folder.mkdirs(); } File mediaFile = new File(folder,fileName); try { FileOutputStream out = new FileOutputStream(mediaFile); croppedImage.compress(Bitmap.CompressFormat.PNG,100,out); out.close(); } catch (Exception e) { e.printStackTrace(); } return mediaFile.toString(); }

Scale font size for different support device Different screen density using the following size scale: xxxhdpi : 4.0 xxhdpi : 3.0 xhdpi : 2.0 hdpi : 1.5 mdpi : 1.0 (baseline) ldpi : 0.75 A set of six generalized  densities : ldpi  (low) ~120dpi mdpi  (medium) ~160dpi hdpi  (high) ~240dpi xhdpi  (extra-high) ~320dpi xxhdpi  (extra-extra-high) ~480dpi xxxhdpi  (extra-extra-extra-high) ~640dpi Below function use for convert dp(Density indipendent pixel) to PX. public static int dp2px(Context context, float dpValue) { final float scale = context.getResources().getDisplayMetrics().density; return (int) (dpValue * scale + 0.5f); } Now We are going to set dynamic font size for all device  Note: It will work only on the device, not on the tablet. we need to write different logic for the tablet. textView.setTextSize(TypedValue. COMPLEX_UNIT_PX , dp2px ( this , 12f )); How It works on different screen....

Android Soft Keyboard Show,Hide, and Close Method to Show Soft Keyboard  public static void showSoftKeyboard(View view,Context context) { if (view.requestFocus()) { InputMethodManager imm = (InputMethodManager)context.getSystemService(Context.INPUT_METHOD_SERVICE); imm.showSoftInput(view, InputMethodManager.SHOW_IMPLICIT); } } Method to Hiding Soft Keyboard public static void hideSoftKeyboard(View view,Context context) { if (view.requestFocus()) { InputMethodManager imm = (InputMethodManager)context.getSystemService(Context.INPUT_METHOD_SERVICE); imm.hideSoftInputFromWindow(view.getWindowToken(), 0); } } Method to Close Soft Keyboard public static void closeKeyboard(Context c, IBinder windowToken) { InputMethodManager mgr = (InputMethodManager) c.getSystemService(Context.INPUT_METHOD_SERVICE); mgr.hideSoftInputFromWindow(windowToken, 0); }

Android Platform Codenames ,Versions, and API Levels References Links: https://source.android.com/source/build-numbers.html#platform-code-names-versions-api-levels-and-ndk-releases