Java 如何使我的列表视图行具有不同的高度
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How can I make my listview rows different heights
提问by code511788465541441
Right now if there is a list item that is 2 lines in height then all the rows are two lines in height
现在，如果有一个高度为 2 行的列表项，那么所有行的高度都是两行
How can I make the rows' height independent on other rows.
如何使行的高度独立于其他行。
ListView
列表显示
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
<ListView
android:id="@+id/user_list"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:divider="@null" />
</LinearLayout>
Row
排
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:paddingBottom="1dp"
android:paddingTop="1dp"
android:paddingLeft="8dp"
android:paddingRight="8dp" >
<TextView
android:id="@+id/user_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="0"
android:maxLines="2"
android:ellipsize="middle"
android:textColor="@android:color/holo_blue_dark"
android:textStyle="bold" />
<TextView
android:id="@+id/points"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="right"
android:layout_weight="1"
android:gravity="right"
android:textStyle="bold" />
</LinearLayout>
I am using a custom adapter extending BaseAdapter. the getView there is nothing special, just a viewholder patern I don't change height or anything
我正在使用扩展 BaseAdapter 的自定义适配器。getView 没有什么特别的，只是一个视图模式我不改变高度或任何东西
回答by Roman Mazur
Looks like you'll have to make visibility of your text views to be View.GONEwhen they are empty. You can do it in adapter implementation.
看起来您必须在文本视图为View.GONE空时使其可见。您可以在适配器实现中做到这一点。
pointsView.setText(pointsText);
pointsView.setVisibility(TextUtils.isEmpty(pointsText) ? View.GONE : View.VISIBLE);
But be careful since your views are in RelativeLayoutand its rules can stop working when an anchored view gets visibility View.GONE.
但是要小心，因为RelativeLayout当锚定视图可见时，您的视图已经存在并且它的规则可能会停止工作View.GONE。
In such case you may try setting text size to zero instead of changing the view visibility, but I haven't tried it myself.
在这种情况下，您可以尝试将文本大小设置为零而不是更改视图可见性，但我自己还没有尝试过。
pointsView.setTextSize(TextUtils.isEmpty(pointsText) ? 0 : defaultSize);
回答by Ahmed Ekri
why don't you try making the height = 0dp and weight 1
你为什么不尝试使高度 = 0dp 和重量 1
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
android:paddingBottom="1dp"
android:paddingTop="1dp"
android:paddingLeft="8dp"
android:paddingRight="8dp" >
<TextView
android:id="@+id/user_name"
android:layout_width="wrap_content"
android:layout_height="0dp"
android:layout_weight="1"
android:maxLines="2"
android:ellipsize="middle"
android:textColor="@android:color/holo_blue_dark"
android:textStyle="bold" />
<TextView
android:id="@+id/points"
android:layout_width="wrap_content"
android:layout_height="0dp"
android:layout_gravity="right"
android:layout_weight="1"
android:gravity="right"
android:textStyle="bold" />
</LinearLayout>
update:
更新：
check this answer
检查这个答案
https://stackoverflow.com/a/7513423/1932105
https://stackoverflow.com/a/7513423/1932105
回答by sriramramani
You are restricting it the TextViewto have a maximum of 2 lines. It will never grow more than that. Remove android:maxLines="2". It should work automatically.
您将其限制TextView为最多 2 行。它永远不会增长更多。删除android:maxLines="2"。它应该自动工作。
回答by But I'm Not A Wrapper Class
The trick for me was not setting the height -- but instead setting the minHeight. This must be applied to the root view of whatever layout your custom adapter is using to render each row.
对我来说，诀窍不是设置高度——而是设置 minHeight。这必须应用于您的自定义适配器用于呈现每一行的任何布局的根视图。
Source: https://stackoverflow.com/a/7368439/2498729
来源：https: //stackoverflow.com/a/7368439/2498729
android:textAppearance="?android:attr/textAppearanceLarge"
seemed no effect.
似乎没有效果。
android:minHeight="?android:attr/listPreferredItemHeight"
changed the height for me
为我改变了高度
回答by Yup
If you are not limited with the TextView MaxLine then please remove android:maxLines="2"this will automatically adjust the height of list.
If you are looking for increasing the height of one particular row independent of others. After setting the adapter value for the list. Get the list final ListView lv = getListView();then form the lvget the particular row by lv.getItemIdAtPosition(position)or any similar logic that best suited in your code. and change the row appearance programmatically as you looking for. Thanks.
如果您不受 TextView MaxLine 的限制，那么请删除android:maxLines="2"它会自动调整列表的高度。
如果您正在寻找独立于其他行的特定行的高度。为列表设置适配器值后。获取列表final ListView lv = getListView();然后形成lv获取特定行lv.getItemIdAtPosition(position)或最适合您的代码的任何类似逻辑。并在您查找时以编程方式更改行外观。谢谢。
