如何在QML中通过objectName调用ImageView(How to call ImageView by objectName in QML)

我在QML中动态创建图像。这是我正在使用的代码：

for (var n = 0; n < 3 * numberOfTiles; n ++) { var image = imageDefinition.createObject(); image.translationX = getX(n); image.translationY = getY(n); image.objectName = ("image"+n) drawContainer.add(image); }

图像创建效果很好，除了我不知道如何在afterdawrds之后调用这些图像。我无法为它们设置ID，我不知道设置objectName是否有效。

我没有得到任何错误，如果这项工作，我如何从QML调用“image3”来移动它？我不想使用c ++。

I am dynamically creating images in my QML. This is the code I am using:

for (var n = 0; n < 3 * numberOfTiles; n ++) { var image = imageDefinition.createObject(); image.translationX = getX(n); image.translationY = getY(n); image.objectName = ("image"+n) drawContainer.add(image); }

Image creating works well, except I don't know how to call those images afterdawrds. I can't set them an ID, and I don't know if setting objectName like that works.

I don't get any errors, and if this work, how can I call "image3" from QML to move it? I don't want to use c++.

最满意答案

我自己找到了解决方案。首先，我添加它以获得全局访问权限

property list<ImageView> images

然后我在数组中创建图像并将其复制

onCreationCompleted: { //you need a tmp variable, since you can't do that with property variant var imagesTmp = Array(); for (var n = 0; n < 3 * numberOfTiles; n ++) { imagesTmp[n] = imageDefinition.createObject() imagesTmp[n].translationX = getX(n); imagesTmp[n].translationY = getY(n); drawContainer.add(imagesTmp[n]); } images = imagesTmp; images[3].translationX = 10; //as example, this works! }

事实证明，图像始终参考图像

Found out a solution on my own. First I add this to have global access

property list<ImageView> images

And then I create images in array and copy them over

onCreationCompleted: { //you need a tmp variable, since you can't do that with property variant var imagesTmp = Array(); for (var n = 0; n < 3 * numberOfTiles; n ++) { imagesTmp[n] = imageDefinition.createObject() imagesTmp[n].translationX = getX(n); imagesTmp[n].translationY = getY(n); drawContainer.add(imagesTmp[n]); } images = imagesTmp; images[3].translationX = 10; //as example, this works! }

As it turns out images keeps reference to the image

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