android layout with visibility GONE

问题

Four views are using same xml. I want to show a linear layout for view 1 only. I put android:visibility="gone" in xml. And then I am doing the following for view 1-

LinearLayout layone= (LinearLayout) view.findViewById(R.id.layone);

layone.setVisibility(View.VISIBLE);

But that doesn't set the visibility to visible.

Isn't it possible to show the view once its declared GONE in xml ?

I don't want to converse the logic by just doing,

layone.setVisibility(View.GONE);

in each of the three views except view 1.

Ideas or comments?

UPDATE:

My xml -

<TextView
                android:id="@+id/layone"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="Previous Page"
                android:textColor="#000000"
                android:textSize="16dp"
                android:paddingLeft="10dp"
                android:layout_marginTop="10dp"
                android:visibility="gone" />
         <LinearLayout
            android:layout_width="fill_parent"
            android:layout_height="50dp"
            android:orientation="horizontal"
            android:padding="10dp"
            android:gravity="center_vertical"
            android:layout_marginLeft="10dp"
            android:layout_marginRight="10dp"          
            android:tag="PrevEntries"     
            android:id="@+id/laytwo"
            android:layout_marginTop="10dp"
            android:background="@layout/roundedtext"
            android:visibility="gone" >

            <TextView
                android:id="@+id/laythree"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:text="Previous Page"
                android:textColor="#000000"
                android:textSize="18dp"
                android:gravity="center"
                android:textStyle="bold" />

        </LinearLayout>

回答1:

<TextView
                android:id="@+id/layone"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="Previous Page"
                android:textColor="#000000"
                android:textSize="16dp"
                android:paddingLeft="10dp"
                android:layout_marginTop="10dp"
                android:visibility="gone" />

layone is a TextView.
You got your id wrong.

LinearLayout layone= (LinearLayout) view.findViewById(R.id.laytwo);// change id here

layone.setVisibility(View.VISIBLE);

should do the job.

or change like this to show the TextView:

TextView layone= (TextView) view.findViewById(R.id.layone);

    layone.setVisibility(View.VISIBLE);

回答2:

Done by having it like that:

view = inflater.inflate(R.layout.entry_detail, container, false);
TextView tp1= (TextView) view.findViewById(R.id.tp1);
LinearLayout layone= (LinearLayout) view.findViewById(R.id.layone);
tp1.setVisibility(View.VISIBLE);
layone.setVisibility(View.VISIBLE);

回答3:

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_below="@+id/activity_register_header"
    android:minHeight="50dp"
    android:orientation="vertical"
    android:visibility="gone" />

Try it..For me this code works..

回答4:

Kotlin Style way to do this more simple (example):

    isVisible = false

Complete example:

    if (some_data_array.details == null){
                holder.view.some_data_array.isVisible = false}

来源：https://stackoverflow.com/questions/16165985/android-layout-with-visibility-gone

标签

android

view

show-hide