Why does minHeight attribute not work in WebView Android?

Question

This question has already been asked here, but it has no solution. I have a `WebView`. I want to set minimum height to the `WebView` using `minHeight` attribute, but it doesn't work. The same attribute works for Button. ```

Accepted Answer

First, let's understand how other view's use `android:minHeight` attribute. Let's take `Spinner` for example. In `AbsSpinner#onMeasure()` code we see following chunk of code:

```
...
preferredHeight = Math.max(preferredHeight, getSuggestedMinimumHeight());
preferredWidth = Math.max(preferredWidth, getSuggestedMinimumWidth());

heightSize = resolveSizeAndState(preferredHeight, heightMeasureSpec, 0);
widthSize = resolveSizeAndState(preferredWidth, widthMeasureSpec, 30);

setMeasuredDimension(widthSize, heightSize);
...
```

So, `getSuggestedMinimumHeight()` should be regarded when computing preferred height.

Now, let's see how `WebView` is being measured.

- `WebView#onMeasure()` delegates the job to `WebViewChromium#onMeasure()`

- `WebViewChromium#onMeasure()` delegates the job to `AwContents#onMeasure()`

- `AwContents#onMeasure()` delegates the job to `AwLayoutSizer#onMeasure`

`AwLayoutSizer` is the last component that is responsible for measuring `WebView` and we can clearly see, that its `onMeasure()` does not respect `getSuggestedMinimumHeight()` value.

I'm not sure whether this is an intended behavior or no. Nevertheless, I cannot find enough seams to somehow affect that measurement process. Here's the chuck of code in `WebView` class, where the object that eventually would return `WebViewChromium` (the first step in abovementioned order) is initialized.

```
    private void ensureProviderCreated() {
        checkThread();
        if (mProvider == null) {
            // As this can get called during the base class constructor chain, pass the minimum
            // number of dependencies here; the rest are deferred to init().
            mProvider = getFactory().createWebView(this, new PrivateAccess());
        }
    }
```

As you can see, this is not something that can be easily customized/changed.

Why does minHeight attribute not work in WebView Android?

Solution

Problem