onSizeChange方法 - getWidth和GetHeight

我想顯示可變大小的彈出窗口。該佈局由EditView組成，我在運行時設置文本，然後顯示彈出窗口。我想要新的佈局的高度。我正在使用以下代碼。任何人都可以幫助我解決我的問題和錯誤的方法。onSizeChange方法 - getWidth和GetHeight

onsizechange方法總是返回yOld和yNew零。

私人無效信息（字符串名稱，字符串描述，視圖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); 
    } 
}

來源

2012-10-16 user1154390

沒有必要對MyCustomClass和覆蓋onsizechanged方法在我的情況下獲得的佈局的新的大小。由於小錯誤，我花了很多時間。我正在使用下面的代碼行來限制TextView的拉伸和包裝內容。

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

現在，我使用下面的行

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

和充分的方法如下。

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(); 

      } 
     }); 

    }

來源

2012-10-17 23:14:18 user1154390

onSizeChange方法 - getWidth和GetHeight

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