Android 软键盘的显示和隐藏

public class KeyboardUtils {public static void showKeyboard(View view) {InputMethodManager imm = (InputMethodManager) view.getContext().getSystemService(Context.INPUT_METHOD_SERVICE);if (imm != null) {view.requestFocus();imm.showSoftInput(view, 0);}}public static void hideKeyboard(View view){InputMethodManager imm = (InputMethodManager) view.getContext().getSystemService(Context.INPUT_METHOD_SERVICE);if (imm != null) {imm.hideSoftInputFromWindow(view.getWindowToken(),0);}}public static void toggleSoftInput(View view){InputMethodManager imm = (InputMethodManager) view.getContext().getSystemService(Context.INPUT_METHOD_SERVICE);if (imm != null) {imm.toggleSoftInput(0,0);}}}