Question

我有一个相对布局R和一个alertdialog A.我想像这样设置A的位置和尺寸与R相同：

A.position_x = R.get_position_x()
A.position_y = R.get_position_y()
A.width = R.get_width()
A.height = R.get_height()

Answer 1

在屏幕顶部使用以下代码设置AlertDialog：

                    AlertDialog.Builder builder = new AlertDialog.Builder(
                            MainActivity.this);
                    builder.setTitle("Title:");
                    builder.setMessage("Are you sure to Exit?");

                    builder.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
                        @Override
                        public void onClick(DialogInterface dialog, int which) {
                          //Set ypu positive code on OK button
                           finish();
                        }
                    });
                    // Setting Negative "NO" Btn
                    builder.setNegativeButton("NO",
                            new DialogInterface.OnClickListener() {
                                public void onClick(DialogInterface dialog, int which) {
                                    dialog.cancel();
                                }
                            });
                    // Showing Alert Dialog
                    AlertDialog dialog = builder.create();
                    dialog.getWindow().setGravity(Gravity.TOP);
                    dialog.show();

Answer 2

从代码下方获取relativelayout的高度，宽度和位置x和y

rel1 = (RelativeLayout)findViewById(R.id.rel1);

rel1.post(new Runnable() 
{

    @Override
    public void run()
    {
        widthRel1 = rel1.getWidth();
        heightRel1 = rel1.getHeight();

        xRel1 = (int) rel1.getX();
        yRel1 = (int) rel1.getY();

    }
});

然后将其应用于Dialog

final Dialog alertDialog = new Dialog(MainActivity.this);
            alertDialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
            alertDialog.setContentView(R.layout.template_menu);

            Window window = alertDialog.getWindow();
            WindowManager.LayoutParams wlp = window.getAttributes();


              wlp.x = xRel1;   //x position        
              wlp.y = yRel1;   //y position

              wlp.height = heightRel1;  
           wlp.width = widthRel1;   

         wlp.gravity = Gravity.TOP | Gravity. LEFT;


            window.setAttributes(wlp);
            window.clearFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND);

            alertDialog.show();

Android alertdialog设置布局的顶部位置和尺寸

2 个答案: