工具栏按钮重力扩展工具栏 [英] Toolbar button gravity for extended toolbar
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问题描述
我试着去把我背的导航图标的位置在我的扩展工具栏,如下所示:
Im trying to set the position of my back navigation icon in my extended toolbar as follows:
<android.support.v7.widget.Toolbar xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/toolbar"
android:layout_height="wrap_content"
android:layout_width="match_parent"
app:theme="@style/Toolbar"
android:minHeight="@dimen/action_bar_height"
app:buttonGravity="top"
android:gravity="top"
android:background="?attr/colorPrimary" />
检查工具栏的来源,我们可以看到以下内容:
Checking the sources of toolbar we can see the following:
private void ensureNavButtonView() {
if (mNavButtonView == null) {
mNavButtonView = new ImageButton(getContext(), null,
R.attr.toolbarNavigationButtonStyle);
final LayoutParams lp = generateDefaultLayoutParams();
lp.gravity = GravityCompat.START | (mButtonGravity & Gravity.VERTICAL_GRAVITY_MASK);
mNavButtonView.setLayoutParams(lp);
}
}
其中, mButtonGravity
通过
mButtonGravity = a.getInteger(R.styleable.Toolbar_buttonGravity, Gravity.TOP);
所以,正确读这篇文章,我的工具栏的重心应该已经是 Gravity.TOP
如果不配置。然而,它看起来是这样的:
So reading this correctly, the gravity of my toolbar should already be Gravity.TOP
if nothing is configured. However it looks like this:
推荐答案
我打了一下周围,并测试了几个的组合,可以说按钮的重力和安卓了minHeight
不想成为朋友。
I played around a bit and tested a couple of combinations and can say that button's gravity and android:minHeight
don't want to be friends.
这应该工作的罚款:
<android.support.v7.widget.Toolbar xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/toolbar"
android:layout_height="@dimen/action_bar_height"
android:layout_width="match_parent"
app:theme="@style/Toolbar"
android:minHeight="?attr/actionBarSize"
android:gravity="top"
android:background="?attr/colorPrimary" />
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