Android 设置Edittext获取焦点并弹出软键盘

/**
   * EditText获取焦点并显示软键盘
   */
  public static void showSoftInputFromWindow(Activity activity, EditText editText) {
    editText.setFocusable(true);
    editText.setFocusableInTouchMode(true);
    editText.requestFocus();
    activity.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE);
  }

android:focusable="true"
android:focusableInTouchMode="true"