[android] How can I remove a button or make it invisible in Android?

How can I remove a button in Android, or make it invisible?

button.setVisibility(button.getVisibility() == View.VISIBLE ? View.GONE : View.VISIBLE);

Makes it visible if invisible and invisible if visible

Button btn=(Button)findViewById(R.id.btn);
btn.setVisibility(8);

button.setVisibility(View.GONE);

In order to access elements from another class you can simply use

findViewById(R.id.**nameOfYourelementID**).setVisibility(View.GONE); 

Try This Code :

button.setVisibility(View.INVISIBLE);

use setVisibility in button or imageViwe or .....
To remove button in java code:

Button btn=(Button)findViewById(R.id.btn);
btn.setVisibility(Button.GONE);

To transparent Button in java code

Button btn=(Button)findViewById(R.id.btn);
btn.setVisibility(Button.INVISIBLE);

You should make you button xml code like below:

<Button
android:id="@+id/btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:visibility="gone"/>

hidden:
visibility: gone
show:
visibility: invisible
visibility: visible

<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 This Code

Visibility works fine in this code

IF you want to make invisible button, then use this:

<Button ... android:visibility="gone"/>

View.INVISIBLE:

Button will become transparent. But it taking space.

View.GONE

Button will be completely remove from the layout and we can add other widget in the place of removed button.

View controls (TextView, EditText, Button, Image, etc) all have a visibility property. This can be set to one of three values:

Visible - Displayed

android:visibility="visible"

Invisible - Hidden but space reserved

android:visibility="invisible"

Gone - Hidden completely

android:visibility="gone"

To set the visibility in code use the public constant available in the static View class:

Button button1 = (TextView)findViewById(R.id.button1);
button1.setVisibility(View.VISIBILE);

First make the button invisible in xml file.Then set button visible in java code if needed.

Button resetButton=(Button)findViewById(R.id.my_button_del);
resetButton.setVisibility(View.VISIBLE); //To set visible

Xml:

<Button
android:text="Delete"
android:id="@+id/my_button_del"
android:layout_width="72dp" 
android:layout_height="40dp"
android:visibility="invisible"/>

This view is visible.

button.setVisibility(View.VISIBLE);

This view is invisible, and it doesn't take any space for layout purposes.

button.setVisibility(View.GONE); 

But if you just want to make it invisible:

button.setVisibility(View.INVISIBLE);

To remove button in java code:

Button btn=(Button)findViewById(R.id.btn);
btn.setVisibility(View.GONE);

To transparent Button in java code:

Button btn=(Button)findViewById(R.id.btn);
btn.setVisibility(View.INVISIBLE);

To remove button in Xml file:

<Button
android:id="@+id/btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:visibility="gone"/>

To transparent button in Xml file:

<Button
android:id="@+id/btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:visibility="invisible"/>

To completely remove a button from its parent layout:

((ViewGroup)button.getParent()).removeView(button);