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android - 安卓布局问题

我希望一个dialog里面显示一个datePicker和两个按钮,但是显示不出按钮,另外流量配额那个TextView也有点问题,调了好多次也没弄明白,我希望他显示在一行并且竖直居中,下面是显示效果和布局文件,麻烦大家帮忙改改,谢谢

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

        <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:orientation="horizontal">
            <TextView
                android:text="流量配额:"
                android:layout_gravity="center_vertical"
                android:layout_weight="3"
                android:layout_width="0dp"
                android:layout_height="wrap_content" />
    
    
            <EditText
                android:id="@+id/editText"
    
                android:layout_weight="4"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:ems="10"
                android:layout_gravity="center"
                android:inputType="number" />
    
            <Spinner
                android:id="@+id/spinner_datFormat"
                android:layout_width="wrap_content"
                android:layout_height="match_parent" />
    
        </LinearLayout>
    
    
    
        <DatePicker
            android:id="@+id/datePicker"
            android:layout_width="match_parent"
            android:layout_height="match_parent" />
    
        <Button
            android:id="@+id/button_confirmTimeCancel"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_gravity="left"
            android:text="取消"/>
        <Button
            android:id="@+id/button_confirmTime"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_gravity="right"
            android:text="确定"/>
    </LinearLayout>
PHP中文网PHP中文网2772 days ago356

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  • PHP中文网

    PHP中文网2017-04-18 09:16:02

    I can only say that the height of your DatePicker has already matched_parent, and you are still counting on the Button below to be displayed!!
    I will give you a tip, use the weight attribute for the DatePicker:

    android:layout_weight=1
    android:layout_width="match_parent"
    android:layout_height="0dp"

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