在子视图上调用setVisibility（View.VISIBLE）之后，Android ScrollView会滚动到顶部

我有一个ScrollView，其中有一个RelativeLayout。这RelativeLayout然后有几个View里面。其中几个View s是CheckBox。当CheckBox选中/取消选中时，其他一些View应相应地出现/消失。出现和消失工作正常，但每当目标View s出现或消失，ScrollView一直滚动到顶部，我被迫向下滚动看看发生了什么事。在子视图上调用setVisibility（View.VISIBLE）之后，Android ScrollView会滚动到顶部

我使用来控制能见度的代码是：

public void crossCountryCheckboxClicked(View view) 
{ 
    CheckBox crossCountryCheckBox = (CheckBox)findViewById(R.id.checkbox_cross_country); 
    EditText crossCountryHoursTextBox = (EditText)findViewById(R.id.cross_country_hours); 
    if (crossCountryCheckBox.isChecked()) 
    { 
     crossCountryHoursTextBox.setVisibility(View.VISIBLE); 
    } 
    else 
    { 
     crossCountryHoursTextBox.setVisibility(View.GONE); 
    } 
}

和crossCountryCheckboxClicked()方法是通过指定在XML布局文件中的CheckBox元件上的属性调用。

下面是XML布局文件：

<ScrollView xmlns:android="http://schemas.android.com/apk/res/android" 
xmlns:custom="http://schemas.android.com/apk/res/logbook.app.activities" 
xmlns:tools="http://schemas.android.com/tools" 
android:layout_width="fill_parent" 
android:layout_height="fill_parent" > 

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

    <TextView 
     android:id="@+id/flight_date" 
     android:layout_width="fill_parent" 
     android:layout_height="wrap_content" /> 

    <EditText 
     android:id="@+id/aeroplane_type" 
     android:layout_width="fill_parent" 
     android:layout_height="wrap_content" 
     android:layout_below="@id/flight_date" 
     android:hint="@string/aeroplane_type" /> 

    <EditText 
     android:id="@+id/aeroplane_registration" 
     android:layout_width="fill_parent" 
     android:layout_height="wrap_content" 
     android:layout_below="@id/aeroplane_type" 
     android:hint="@string/aeroplane_registration" /> 

    <EditText 
     android:id="@+id/pilot_name" 
     android:layout_width="fill_parent" 
     android:layout_height="wrap_content" 
     android:layout_below="@id/aeroplane_registration" 
     android:hint="@string/pilot_name" /> 

    <EditText 
     android:id="@+id/copilot_name" 
     android:layout_width="fill_parent" 
     android:layout_height="wrap_content" 
     android:layout_below="@id/pilot_name" 
     android:hint="@string/copilot_name" /> 

    <EditText 
     android:id="@+id/from_aerodome" 
     android:layout_width="fill_parent" 
     android:layout_height="wrap_content" 
     android:layout_below="@id/copilot_name" 
     android:hint="@string/from_aerodome" /> 

    <EditText 
     android:id="@+id/to_aerodome" 
     android:layout_width="fill_parent" 
     android:layout_height="wrap_content" 
     android:layout_below="@id/copilot_name" 
     android:layout_toRightOf="@id/from_aerodome" 
     android:hint="@string/to_aerodome" /> 

    <EditText 
     android:id="@+id/remarks" 
     android:layout_width="fill_parent" 
     android:layout_height="wrap_content" 
     android:layout_below="@id/from_aerodome" 
     android:hint="@string/remarks" /> 

    <Spinner 
     android:id="@+id/aircraft_engine_type_spinner" 
     android:layout_width="fill_parent" 
     android:layout_height="wrap_content" 
     android:layout_below="@id/remarks" /> 

    <Spinner 
     android:id="@+id/time_of_day_spinner" 
     android:layout_width="fill_parent" 
     android:layout_height="wrap_content" 
     android:layout_below="@id/aircraft_engine_type_spinner" /> 

    <Spinner 
     android:id="@+id/pilot_role_spinner" 
     android:layout_width="fill_parent" 
     android:layout_height="wrap_content" 
     android:layout_below="@id/time_of_day_spinner" /> 

    <TextView 
     android:id="@+id/on_time" 
     android:layout_width="fill_parent" 
     android:layout_height="wrap_content" 
     android:layout_below="@id/pilot_role_spinner" 
     android:hint="@string/on_time_hint" /> 

    <TextView 
     android:id="@+id/takeoff_time" 
     android:layout_width="fill_parent" 
     android:layout_height="wrap_content" 
     android:layout_below="@id/on_time" 
     android:hint="@string/takeoff_time_hint" /> 

    <TextView 
     android:id="@+id/landing_time" 
     android:layout_width="fill_parent" 
     android:layout_height="wrap_content" 
     android:layout_below="@id/takeoff_time" 
     android:hint="@string/landing_time_hint" /> 

    <TextView 
     android:id="@+id/off_time" 
     android:layout_width="fill_parent" 
     android:layout_height="wrap_content" 
     android:layout_below="@id/landing_time" 
     android:hint="@string/off_time_hint" /> 

    <Button 
     android:id="@+id/button_record" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_below="@id/off_time" 
     android:onClick="recordTime" 
     android:padding="5dp" 
     android:text="@string/button_record" /> 

    <Button 
     android:id="@+id/button_reset" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_below="@id/off_time" 
     android:layout_toRightOf="@id/button_record" 
     android:onClick="resetAllTimes" 
     android:padding="5dp" 
     android:text="@string/button_reset" /> 

    <CheckBox 
     android:id="@+id/checkbox_ifr" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_below="@+id/button_record" 
     android:text="@string/checkbox_ifr" 
     android:onClick="ifrCheckboxClicked" /> 

    <CheckBox 
     android:id="@+id/checkbox_cross_country" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_below="@+id/button_record" 
     android:layout_toRightOf="@id/checkbox_ifr" 
     android:text="@string/checkbox_cross_country" 
     android:onClick="crossCountryCheckboxClicked" /> 

    <Spinner 
     android:id="@+id/ifr_type_spinner" 
     android:layout_width="fill_parent" 
     android:layout_height="wrap_content" 
     android:layout_below="@id/checkbox_ifr" 
     android:visibility="gone" /> 

    <TextView 
     android:id="@+id/label_ifr_approaches" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_below="@id/ifr_type_spinner" 
     android:hint="@string/ifr_landings_label" 
     android:visibility="gone" /> 

    <logbook.app.custom.widgets.NumberSelector 
     android:id="@+id/ifr_landings_selector" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_below="@id/label_ifr_approaches" 
     android:visibility="gone" 
     custom:orientation="vertical" /> 

    <EditText 
     android:id="@+id/ifr_hours" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_below="@id/ifr_landings_selector" 
     android:hint="@string/ifr_hours_hint" 
     android:inputType="number" 
     android:visibility="gone" /> 

    <EditText 
     android:id="@+id/cross_country_hours" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_below="@id/ifr_hours" 
     android:hint="@string/cross_country_hours_hint" 
     android:inputType="number" 
     android:visibility="gone" /> 

    <TextView 
     android:id="@+id/label_takeoffs_landings" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_below="@id/cross_country_hours" 
     android:hint="@string/takeoffs_landings_label" /> 

    <logbook.app.custom.widgets.NumberSelector 
     android:id="@+id/landings_selector" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_below="@id/label_takeoffs_landings" 
     custom:orientation="horizontal" /> 

    <Button 
     android:id="@+id/button_create_log" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_below="@id/landings_selector" 
     android:onClick="createLog" 
     android:padding="5dp" 
     android:text="@string/button_create_log" /> 

</RelativeLayout>

如何从滚动到它的每一个孩子的能见度之一View.GONE和View.Visible之间变化时，顶部停止ScrollView？

来源

2012-11-01 faridghar

粘贴您的XML代码 – RajeshVijayakumar

不现在应用可见性 – RajeshVijayakumar

你是什么意思现在不应用可见性？ – faridghar

试试这个：

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

<ScrollView xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" > 

<RelativeLayout 
xmlns:android="http://schemas.android.com/apk/res/android" 
android:layout_width="fill_parent" 
android:layout_height="wrap_content" > 

<TextView 
    android:id="@+id/flight_date" 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" /> 

<EditText 
    android:id="@+id/aeroplane_type" 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:layout_below="@id/flight_date" 
    android:hint="@string/aeroplane_type" /> 

<EditText 
    android:id="@+id/aeroplane_registration" 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:layout_below="@id/aeroplane_type" 
    android:hint="@string/aeroplane_registration" /> 

<EditText 
    android:id="@+id/pilot_name" 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:layout_below="@id/aeroplane_registration" 
    android:hint="@string/pilot_name" /> 

<EditText 
    android:id="@+id/copilot_name" 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:layout_below="@id/pilot_name" 
    android:hint="@string/copilot_name" /> 

<EditText 
    android:id="@+id/from_aerodome" 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:layout_below="@id/copilot_name" 
    android:hint="@string/from_aerodome" /> 

<EditText 
    android:id="@+id/to_aerodome" 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:layout_below="@id/copilot_name" 
    android:layout_toRightOf="@id/from_aerodome" 
    android:hint="@string/to_aerodome" /> 

<EditText 
    android:id="@+id/remarks" 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:layout_below="@id/from_aerodome" 
    android:hint="@string/remarks" /> 

<Spinner 
    android:id="@+id/aircraft_engine_type_spinner" 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:layout_below="@id/remarks" /> 

<Spinner 
    android:id="@+id/time_of_day_spinner" 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:layout_below="@id/aircraft_engine_type_spinner" /> 

<Spinner 
    android:id="@+id/pilot_role_spinner" 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:layout_below="@id/time_of_day_spinner" /> 

<TextView 
    android:id="@+id/on_time" 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:layout_below="@id/pilot_role_spinner" 
    android:hint="@string/on_time_hint" /> 

<TextView 
    android:id="@+id/takeoff_time" 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:layout_below="@id/on_time" 
    android:hint="@string/takeoff_time_hint" /> 

<TextView 
    android:id="@+id/landing_time" 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:layout_below="@id/takeoff_time" 
    android:hint="@string/landing_time_hint" /> 

<TextView 
    android:id="@+id/off_time" 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:layout_below="@id/landing_time" 
    android:hint="@string/off_time_hint" /> 

<Button 
    android:id="@+id/button_record" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_below="@id/off_time" 
    android:onClick="recordTime" 
    android:padding="5dp" 
    android:text="@string/button_record" /> 

<Button 
    android:id="@+id/button_reset" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_below="@id/off_time" 
    android:layout_toRightOf="@id/button_record" 
    android:onClick="resetAllTimes" 
    android:padding="5dp" 
    android:text="@string/button_reset" /> 

<CheckBox 
    android:id="@+id/checkbox_ifr" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_below="@+id/button_record" 
    android:text="@string/checkbox_ifr" 
    android:onClick="ifrCheckboxClicked" /> 

<CheckBox 
    android:id="@+id/checkbox_cross_country" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_below="@+id/button_record" 
    android:layout_toRightOf="@id/checkbox_ifr" 
    android:text="@string/checkbox_cross_country" 
    android:onClick="crossCountryCheckboxClicked" /> 

<Spinner 
    android:id="@+id/ifr_type_spinner" 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:layout_below="@id/checkbox_ifr" 
    android:visibility="gone" /> 

<TextView 
    android:id="@+id/label_ifr_approaches" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_below="@id/ifr_type_spinner" 
    android:hint="@string/ifr_landings_label" 
    android:visibility="gone" /> 

<logbook.app.custom.widgets.NumberSelector 
    android:id="@+id/ifr_landings_selector" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_below="@id/label_ifr_approaches" 
    android:visibility="gone" 
    custom:orientation="vertical" /> 

<EditText 
    android:id="@+id/ifr_hours" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_below="@id/ifr_landings_selector" 
    android:hint="@string/ifr_hours_hint" 
    android:inputType="number" 
    android:visibility="gone" /> 

<EditText 
    android:id="@+id/cross_country_hours" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_below="@id/ifr_hours" 
    android:hint="@string/cross_country_hours_hint" 
    android:inputType="number" 
    android:visibility="gone" /> 

<TextView 
    android:id="@+id/label_takeoffs_landings" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_below="@id/cross_country_hours" 
    android:hint="@string/takeoffs_landings_label" /> 

<logbook.app.custom.widgets.NumberSelector 
    android:id="@+id/landings_selector" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_below="@id/label_takeoffs_landings" 
    custom:orientation="horizontal" /> 

<Button 
    android:id="@+id/button_create_log" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_below="@id/landings_selector" 
    android:onClick="createLog" 
    android:padding="5dp" 
    android:text="@string/button_create_log" /> 

</RelativeLayout> 
</ScrollView> 
</LinearLayout>

来源

2012-11-01 00:51:33 RajeshVijayakumar

这没有帮助。同样的行为仍然存在。 – faridghar

这也没有帮助。 – faridghar

现在添加android：fillViewPort =“true”到滚动视图标签 – RajeshVijayakumar

我想你想你Scrolldown已在新的可视视图crossCountryHoursTextBox 滚动的，只是你滚动滚动条这样

// scrollview at visible textbox 
yourscroll.smoothScrollBy(0,crossCountryHoursTextBox.getTop());

来源

2015-07-01 11:21:44 pRaNaY

在子视图上调用setVisibility（View.VISIBLE）之后，Android ScrollView会滚动到顶部

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