android - 模态/对话框未在宽度上应用匹配父布局

Question

我有一个对话框/模式，我需要沿其宽度匹配父级。但是，它一直在做 wrap_content。有什么想法可以纠正这个问题吗？

这是我的布局

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/my_root"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal" >

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        android:background="#55555555" >

        <Button
            android:id="@+id/dogs"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_margin="10dp"
            android:background="#AAAAAA"
            android:clickable="true"
            android:gravity="center"
            android:onClick="onDogsClicked"
            android:text="Dogs" />

        <Button
            android:id="@+id/cats"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_margin="10dp"
            android:background="#AAAAAA"
            android:clickable="true"
            android:gravity="center"
            android:onClick="Cats"
            android:text="Cat" />

        <Button
            android:id="@+id/snake"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_margin="10dp"
            android:background="#FF0000"
            android:clickable="true"
            android:gravity="center"
            android:onClick="onSnakeClicked"
            android:text="Snake" />

        <Button
            android:id="@+id/sheep"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_margin="10dp"
            android:background="#AAAAAA"
            android:clickable="true"
            android:gravity="center"
            android:onClick="onSheepClicked"
            android:text="Sheep" />
    </LinearLayout>

</LinearLayout>

这是程序 fragment

Dialog animalsView;

    public void onAnimalsClicked(View v) {

        LayoutInflater inflater = getLayoutInflater();
        View dialoglayout = inflater.inflate(R.layout.animals_layout,
            (ViewGroup) findViewById(R.id.my_root));

        animalsView = new Dialog(this, R.style.CustomDialog);
        WindowManager.LayoutParams wmlp = animalsView.getWindow()
            .getAttributes();

        wmlp.gravity = Gravity.BOTTOM;
        wmlp.flags &= ~WindowManager.LayoutParams.FLAG_DIM_BEHIND;
        animalsView.getWindow().setAttributes(wmlp);

        animalsView.getWindow().requestFeature(Window.FEATURE_NO_TITLE);
        animalsView.setContentView(dialoglayout);
        animalsView.getWindow().setBackgroundDrawable(new ColorDrawable(0));
        animalsView.show();
    }

Answer 1

我遇到了同样的问题，但找不到在 XML 中执行此操作的解决方案。但是在.java文件中有一个解决方案。

    WindowManager.LayoutParams params = animalsView.getWindow().getAttributes();
    params.gravity = Gravity.BOTTOM;
    params.height = 100;
    params.width = android.view.ViewGroup.LayoutParams.MATCH_PARENT;