如何以百分比设置DialogFragment的宽度? [英] How to set the width of a DialogFragment in percentage?

问题描述

我有一个DialogFragment带有xml布局，我需要它是XML布局的75％.当我寻找答案时，我总是会找到常见的weight-解决方案，但对我没有帮助，因为我的片段覆盖了当前活动，如下所示，并且没有占据全屏的大小.我也不想使用"ems"作为固定宽度，因为我不知道用户的屏幕尺寸.

I have a DialogFragment with an xml layout and I need it to be, let's say 75% as wide as the screen. When I look for answers I always find the common weight-solution, which does not help me, as my fragment overlays the current activity as shown below and does not take the full screen's size. I also don't want to use "ems" as a fix width as I can't know the user's screen size.

是否有一种方法(最好在xml中)将根LinearLayout的宽度设置为所说的75％?我认为定义一个完整的LinearLayout集合并使其中一些透明是一种可能的解决方法，但这似乎是一个非常丑陋的解决方案...

Is there a way (preferably in xml) to set the root LinearLayout's width to said 75%? I think it would be a possible workaround to define a whole set of LinearLayouts and make some of them transparent but this seems to be a rather ugly solution...

如果有帮助，这是片段的布局:

If it helps, here is the fragment's layout:

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android = "http://schemas.android.com/apk/res/android"
    android:layout_height   = "wrap_content"
    android:layout_width    = "match_parent"
    android:orientation     = "vertical" >

    <EditText
        android:hint            = "@string/inputhint_feedbackName"
        android:id              = "@+id/input_feedbackName"
        android:imeOptions      = "actionNext"
        android:inputType       = "textPersonName"
        android:layout_height   = "wrap_content"
        android:layout_width    = "match_parent"
        android:lines           = "1"
        android:maxLines        = "1"
        android:singleLine      = "true" >
        <requestFocus />
    </EditText>

    <EditText
        android:gravity             = "top"
        android:id                  = "@+id/input_feedbackMessage"
        android:imeOptions          = "actionDone"
        android:layout_height       = "wrap_content"
        android:layout_marginBottom = "20dp"
        android:layout_width        = "match_parent"
        android:lines               = "10"
        android:inputType           = "textMultiLine" />

    <Button
        android:id                  = "@+id/button_feedbackSend"
        android:layout_height       = "wrap_content"
        android:layout_width        = "match_parent"
        android:text                = "@string/label_go"
        android:textSize            = "16sp"
        android:textStyle           = "bold" />
</LinearLayout>

推荐答案

我认为不使用代码就不可能实现这一目标.

I don't think it is possible to achieve this without using code.

无论如何，我在自定义DialogFragment类中使用此代码.希望对您有所帮助.

Anyway I'm using this code inside my custom DialogFragment class. Hope it helps.

public void onResume() {
    super.onResume();

    Window window = getDialog().getWindow();
    Point size = new Point();

    Display display = window.getWindowManager().getDefaultDisplay();
    display.getSize(size);

    int width = size.x;

    window.setLayout((int) (width * 0.75), WindowManager.LayoutParams.WRAP_CONTENT);
    window.setGravity(Gravity.CENTER);
}

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