设置可见性时 XML 列表视图重叠元素
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【中文标题】设置可见性时 XML 列表视图重叠元素【英文标题】：XML listview overlaps elements when setting visibility 【发布时间】：2013-09-10 06:22:52 【问题描述】：我有一个大约 3000 行的 xml 布局，用作问卷类型应用程序的布局。问卷的每一页都在不同的线性布局内，我使用View.GONE 或View.VISIBLE 在代码中设置线性布局的可见性。这样，用户无需每次加载新的intents 即可浏览页面。
但是，当我快速浏览应用程序时（只需按 next button 浏览屏幕），一些本应为 View.GONE 的元素出现并重叠可见项。这只发生在其中包含列表视图的线性布局中。对于所有其他页面。
我可以快速滚动浏览它们，但是当我导航太快时，有时会出现在View.GONE 元素中具有列表视图的那些。我怎样才能解决这个问题 ？如果您需要代码，请告诉我...但是 xml 非常大。
T.I.A.
编辑
这是我的 xml 代码的一个示例，我的 xml 中有 3000 行重复...
<LinearLayout
android:id="@+id/package_normal_samplesblood"
android:orientation="vertical"
android:layout_
android:layout_>
<LinearLayout
android:layout_
android:layout_
android:layout_marginBottom="70dp"
android:orientation="vertical">
<TextView
android:id="@+id/textview_heading_b1"
android:layout_
android:layout_
android:textSize="23sp"
android:layout_marginLeft="13dp"
android:layout_marginRight="10dp"
android:layout_marginTop="12dp"
android:layout_marginBottom="12dp"
android:textColor="#6f6f6f"
android:layout_gravity="left"
android:text="Blood Samples"/>
<Button
android:id="@+id/button_samples_blood"
android:text="Add Blood Samples"
android:layout_
android:layout_
android:textSize="20sp"
android:layout_gravity="center"
android:layout_marginTop="5dp"
android:layout_marginBottom="5dp"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"/>
<ListView
android:id="@+id/listview_samples_blood"
android:scrollbarSize="0dp"
android:layout_
android:layout_
android:background="#ffffff"
android:orientation="vertical"
/>
</LinearLayout>
<RelativeLayout
android:orientation="horizontal"
android:background="#ffffff"
android:layout_
android:layout_
android:layout_marginTop="-75dp"
>
<View
android:layout_
android:layout_alignParentTop="true"
android:layout_
android:background="#DEDEDE"
android:layout_marginTop="2dp"/>
<ImageButton
android:id="@+id/left9"
android:background="@null"
android:scaleType="fitEnd"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:layout_marginTop="10dp"
android:layout_marginLeft="10dp"
android:layout_
android:layout_
android:src="@drawable/left"/>
<TextView
android:id="@+id/textview_heading2"
android:layout_
android:layout_
android:textSize="25sp"
android:layout_centerInParent="true"
android:layout_marginTop="10dp"
android:textColor="#6f6f6f"
android:layout_gravity="center"
android:text="RhODIS®"/>
<ImageButton
android:id="@+id/right9"
android:background="@null"
android:scaleType="fitEnd"
android:layout_centerVertical="true"
android:layout_alignParentRight="true"
android:layout_marginTop="10dp"
android:layout_marginRight="10dp"
android:layout_
android:layout_
android:src="@drawable/right"/>
</RelativeLayout>
</LinearLayout>
<LinearLayout
android:id="@+id/package_normal_sampleshair"
android:orientation="vertical"
android:layout_
android:layout_>
<LinearLayout
android:layout_
android:layout_
android:layout_marginBottom="70dp"
android:orientation="vertical">
<TextView
android:id="@+id/textview_heading_b2"
android:layout_
android:layout_
android:textSize="23sp"
android:layout_marginLeft="13dp"
android:layout_marginRight="10dp"
android:layout_marginTop="12dp"
android:layout_marginBottom="12dp"
android:textColor="#6f6f6f"
android:layout_gravity="left"
android:text="Hair Samples"/>
<Button
android:id="@+id/button_samples_hair"
android:text="Add Hair Samples"
android:layout_
android:layout_
android:textSize="20sp"
android:layout_gravity="center"
android:layout_marginTop="5dp"
android:layout_marginBottom="5dp"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"/>
<ListView
android:id="@+id/listview_samples_hair"
android:scrollbarSize="0dp"
android:layout_
android:layout_
android:background="#ffffff"
android:orientation="vertical"
/>
</LinearLayout>
<RelativeLayout
android:orientation="horizontal"
android:background="#ffffff"
android:layout_
android:layout_
android:layout_marginTop="-75dp"
>
<View
android:layout_
android:layout_alignParentTop="true"
android:layout_
android:background="#DEDEDE"
android:layout_marginTop="2dp"/>
<ImageButton
android:id="@+id/left10"
android:background="@null"
android:scaleType="fitEnd"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:layout_marginTop="10dp"
android:layout_marginLeft="10dp"
android:layout_
android:layout_
android:src="@drawable/left"/>
<TextView
android:id="@+id/textview_heading2"
android:layout_
android:layout_
android:textSize="25sp"
android:layout_centerInParent="true"
android:layout_marginTop="10dp"
android:textColor="#6f6f6f"
android:layout_gravity="center"
android:text="RhODIS®"/>
<ImageButton
android:id="@+id/right10"
android:background="@null"
android:scaleType="fitEnd"
android:layout_centerVertical="true"
android:layout_alignParentRight="true"
android:layout_marginTop="10dp"
android:layout_marginRight="10dp"
android:layout_
android:layout_
android:src="@drawable/right"/>
</RelativeLayout>
</LinearLayout>
然后这是我如何在代码中显示和隐藏线性布局的示例，重复 24 个左按钮和 24 个右按钮：
left24.setOnClickListener(new View.OnClickListener()
public void onClick(View v)
package_normal_welcomescreen.setVisibility(View.GONE);
package_normal_package_details.setVisibility(View.GONE);
package_normal_openbag.setVisibility(View.GONE);
package_normal_kitnumber.setVisibility(View.GONE);
package_normal_emptybag.setVisibility(View.GONE);
package_normal_gpscoordinates.setVisibility(View.GONE);
package_normal_image_scene.setVisibility(View.GONE);
package_normal_samplesblood.setVisibility(View.GONE);
package_normal_sampleshair.setVisibility(View.GONE);
package_normal_samplestissue.setVisibility(View.GONE);
package_normal_sampleshorn.setVisibility(View.GONE);
package_normal_samplesother.setVisibility(View.GONE);
package_normal_packsamples.setVisibility(View.GONE);
package_normal_returnbag.setVisibility(View.GONE);
package_normal_sealreturnbag.setVisibility(View.GONE);
package_normal_image_sealedbag.setVisibility(View.GONE);
package_normal_scanned.setVisibility(View.GONE);
package_normal_animal_details.setVisibility(View.GONE);
package_normal_animal_horn_details.setVisibility(View.GONE);
package_normal_animal_ears.setVisibility(View.GONE);
package_normal_area_details.setVisibility(View.GONE);
package_normal_collecter_details.setVisibility(View.GONE);
package_normal_additional_information.setVisibility(View.GONE);
package_normal_owner_details.setVisibility(View.VISIBLE);
package_normal_owner_details.bringToFront();
);
right24.setOnClickListener(new View.OnClickListener()
public void onClick(View v)
if(Session.signatureIsCaptured)
package_normal_welcomescreen.setVisibility(View.GONE);
package_normal_package_details.setVisibility(View.GONE);
package_normal_openbag.setVisibility(View.GONE);
package_normal_kitnumber.setVisibility(View.GONE);
package_normal_emptybag.setVisibility(View.GONE);
package_normal_gpscoordinates.setVisibility(View.GONE);
package_normal_image_scene.setVisibility(View.GONE);
package_normal_samplesblood.setVisibility(View.GONE);
package_normal_sampleshair.setVisibility(View.GONE);
package_normal_samplestissue.setVisibility(View.GONE);
package_normal_sampleshorn.setVisibility(View.GONE);
package_normal_samplesother.setVisibility(View.GONE);
package_normal_packsamples.setVisibility(View.GONE);
package_normal_returnbag.setVisibility(View.GONE);
package_normal_sealreturnbag.setVisibility(View.GONE);
package_normal_image_sealedbag.setVisibility(View.GONE);
package_normal_scanned.setVisibility(View.GONE);
package_normal_animal_details.setVisibility(View.GONE);
package_normal_animal_horn_details.setVisibility(View.GONE);
package_normal_animal_ears.setVisibility(View.GONE);
package_normal_area_details.setVisibility(View.GONE);
package_normal_owner_details.setVisibility(View.GONE);
package_normal_collecter_details.setVisibility(View.GONE);
package_normal_additional_information.setVisibility(View.VISIBLE);
package_normal_additional_information.bringToFront();
else
Toast.makeText(Screen_Package_Normal.this, "Authorized Signature Required", Toast.LENGTH_LONG).show();
);
我有不同类型的列表视图和适配器，自定义和内置的 android。我认为问题不在于适配器，因为它可以很好地显示列表视图，甚至在填充列表视图之前就出现问题...
【问题讨论】：
【参考方案1】：我有一个临时修复，不确定作为答案的正确性，但这解决了我的问题...我将它应用于我的整个布局，当我隐藏和显示布局时它会添加一个动画，从而减慢它们向下一点，从显示中删除重叠的元素。
这是我添加到布局中的内容：
android:animateLayoutChanges="true"
【讨论】：
我的解决办法是致电requestLayout()。以上是关于设置可见性时 XML 列表视图重叠元素的主要内容，如果未能解决你的问题，请参考以下文章