DialogFragment方便地完成自定义弹窗

当采用popupWindow或是dialog无法达到预期的效果时，可以考虑使用
popupWindow要考虑解决穿透，点击窗体外还有效果。
AlertDialog无法直接达到要求，

DialogFragment可以帮助我们非常方便地完成自定义弹窗，直接设置定义的view,满中如下
1、点击弹窗外不允许编辑
2、点击弹窗外不消失
Demo如下：
public class Fragment extends DialogFragment
  {

    private TextView tvCancel, tvSure, tvTitle, tvContent;
    private BackUpListener backUpListener;

    private View.OnClickListener onClickListen = new View.OnClickListener()
      {
        @Override
        public void onClick(View v)
          {
}         
 
      };

    @Override
    public void onCreate(@Nullable Bundle savedInstanceState)
      {
        super.onCreate(savedInstanceState);
      }

    @Override
    public void onStart()
      {
        super.onStart();
        initWindowParams();
      }

    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState)
      {
        View contentView = inflater.inflate(R.layout.fragment_show_autobackup_dialog, container, false);
        initView(contentView);
        initData();
        return contentView;
      }

    private void initView(View contentView)
      {
 
        tvSure = contentView.findViewById(R.id.tv_sure);

      }

    private void initData()
      {
 
        tvCancel.setOnClickListener(onClickListen);
        tvSure.setOnClickListener(onClickListen);
      }

    private void initWindowParams()
      {
        Window window = getDialog().getWindow();
        window.setGravity(Gravity.CENTER);   // 这里控制弹出的位置
        window.getDecorView().setPadding(0, 0, 0, 0);
        window.setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));
        window.setDimAmount(0.2f);
        WindowManager.LayoutParams lp = window.getAttributes();
        DisplayMetrics displayMetrics = getResources().getDisplayMetrics();
        lp.width = Math.max((int) (320 * displayMetrics.density), displayMetrics.widthPixels / 2);
        lp.height = WindowManager.LayoutParams.WRAP_CONTENT;
        //点击事件是否穿透 dialog
        //        lp.flags = lp.flags | WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL;
        //按空白处不能取消动画
        getDialog().setCanceledOnTouchOutside(false);
        window.setAttributes(lp);
        window.clearFlags(WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE);
        window.clearFlags(WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM);
        window.setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE);
        getDialog().setOnKeyListener(new DialogInterface.OnKeyListener()
          {
            @Override
            public boolean onKey(DialogInterface dialog, int keyCode, KeyEvent event)
              {
                if (keyCode == KeyEvent.KEYCODE_BACK)
                  {
                    return true;
                  }
                return false;
              }
          });

      }

    @Override
    public void show(FragmentManager manager, String tag)
      {
        //        super.show(manager, tag);
        FragmentTransaction ft = manager.beginTransaction();
        ft.add(this, tag);
        ft.commitAllowingStateLoss();
      }

    public void setAutoBackUpListener(BackUpListener backUpListener)
      {
        this.backUpListener = backUpListener;
      }

    public interface BackUpListener
      {
        void BackUpListener();
      }

  }