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我想显示大小可变的弹出窗口。布局由 EditView 组成，我在显示弹出窗口之前在运行时设置了文本。我想要新布局的高度。我正在使用以下代码。任何人都可以帮助我解决我的错误和错误的方法来解决我的问题。

  • onsizechange 方法总是返回 yOld 和 yNew 零。

    私人无效信息（字符串名称，字符串描述，视图v）{

        LayoutInflater layoutInflater = (LayoutInflater) getActivity()
            .getSystemService(Context.LAYOUT_INFLATER_SERVICE);

    View popupView = layoutInflater.inflate(R.layout.lo_popup_concerninfo,
            null, false);


    final LinearLayout ll = (LinearLayout) popupView.findViewById(R.id.lo_popup_concern_linearlayout);
    TextView tv_concernName = (TextView) popupView
            .findViewById(R.id.tv_concernName);
    final TextView tv_concernDesc = (TextView) popupView
            .findViewById(R.id.tv_concernDesc);
    Button btn_concernDone = (Button) popupView
            .findViewById(R.id.btn_concernDone);        

    tv_concernName.setText(name);
    tv_concernDesc.setText(Description);

    ll.addView(new MyCustomView(getActivity().getApplicationContext()));

    Display display = getActivity().getWindowManager().getDefaultDisplay();
        //popupView.measure(display.getWidth(), display.getHeight());
   popupView.measure(View.MeasureSpec.UNSPECIFIED,   View.MeasureSpec.UNSPECIFIED); 

      System.out.println("view.getMeasuredWidth() " +
              popupView.getMeasuredWidth());
              System.out.println("view.getMeasuredHeight() " +
              popupView.getMeasuredHeight());



    final PopupWindow popup = new PopupWindow(popupView,
            display.getWidth() - 40, popupView.getMeasuredHeight() + finalHeight);

    System.out.println("view" +
              popup.getHeight());

    popup.showAtLocation(v, Gravity.CENTER, 0, 10);
    popup.setFocusable(true);
    popup.update();

     class MyCustomView extends View{

     int viewWidth = 0;
     int viewHeight = 0;

     public MyCustomView(Context context) {
             super(context);
             System.out.println("ali1");
     }

     @Override
     protected void onSizeChanged(int xNew, int yNew, int xOld, int yOld){
             super.onSizeChanged(xNew, yNew, xOld, yOld);
             viewWidth = xNew;
             viewHeight = yNew;

             System.out.println("xNew " + xNew);
             System.out.println("yNew " + yNew);
             System.out.println("xOld " + xOld);
             System.out.println("yOld " + yOld);

     }


     @Override
     protected void onDraw(Canvas canvas){
             super.onDraw(canvas);

             String msg = "width: " + viewWidth + "height: " + viewHeight;
             System.out.println(msg);
     }
}
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1 回答 1

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在我的情况下，不需要 MyCustomClass 和覆盖 onsizechanged 方法来获得新的布局大小。由于小错误，我花了很多时间。我正在使用以下代码行来限制 TextView 拉伸和换行内容。

 final PopupWindow popup = new PopupWindow(popupView,
            display.getWidth() - 40, popupView.getMeasuredHeight() + finalHeight)

现在我正在使用以下行

final PopupWindow popup = new PopupWindow(popupView,
                display.getWidth() - 40, ViewGroup.LayoutParams.WRAP_CONTENT);

完整的方法如下。

private void info(String name, String Description, View v) {

        LayoutInflater layoutInflater = (LayoutInflater) getActivity()
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);

        View popupView = layoutInflater.inflate(R.layout.lo_popup_concerninfo,
                null, false);

        LinearLayout ll = (LinearLayout) popupView
                .findViewById(R.id.lo_popup_concern_linearlayout);

        TextView tv_concernName = (TextView) popupView
                .findViewById(R.id.tv_concernName);
        final TextView tv_concernDesc = (TextView) popupView
                .findViewById(R.id.tv_concernDesc);
        Button btn_concernDone = (Button) popupView
                .findViewById(R.id.btn_concernDone);
        tv_concernName.setText(name);
        tv_concernDesc.setText(Description);
        Display display = getActivity().getWindowManager().getDefaultDisplay();
        popupView.measure(display.getWidth(), display.getHeight());

        final PopupWindow popup = new PopupWindow(popupView,
                display.getWidth() - 40, ViewGroup.LayoutParams.WRAP_CONTENT);

        popup.showAtLocation(v, Gravity.CENTER, 0, 10);
        popup.setFocusable(true);
        popup.update();

        btn_concernDone.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {

                popup.dismiss();

            }
        });

    }
于 2012-10-17T23:14:18.847 回答