Set Fragment height programmatically according to existing elements

Pre:

I am extending the relativelayout class and inflating the below reduced xml sample

I am adding the fragment programmatically in the container layout "fragment_container"

What I want to achieve is to add a fragment in a layout-container (in this case fragment_container) where the height is already ruled by the three textviews

<merge xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">

<FrameLayout
    android:id="@+id/fragment_container"
    android:layout_width="match_parent"
    android:layout_height="match_parent"/>

<TextView
    android:layout_marginTop="10dp"
    android:id="@+id/textView"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="New Text 1" />

<TextView
    android:id="@+id/textView2"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_below="@+id/textView"
    android:text="New Text 2" />

<TextView
    android:layout_marginBottom="10dp"
    android:id="@+id/textView3"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_below="@+id/textView2"
    android:text="New Text 3" />
</RelativeLayout>

To set the height of the fragment programmatically I am doing this:

@Override
public void onWindowFocusChanged(boolean hasFocus) {
    super.onWindowFocusChanged(hasFocus);

    if (!hasFocus) return;

    ViewGroup.LayoutParams params = fragment.getView().getLayoutParams();
    params.height = getMeasuredHeight();
    params.width = getMeasuredWidth();
    fragment.getView().setLayoutParams(params);
}

This solution works sometimes (sometimes getMeasuredHeight returns 0 && getMeasuredWidth returns 0), so it's not the correct solution.

Is this a problem that can be solved through the use of the xml only?

---

正如我看到你垂直堆叠视图，使用LinearLayout垂直方向不是更好，并给每个视图适当的权重（0为高度，适当的重量值）？

链接地址: http://www.djcxy.com/p/68746.html

上一篇: 算法来比较两个图像

下一篇: 根据现有元素以编程方式设置片段高度