如何从java隐藏/显示TextView
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How to hide/show TextView from java
提问by Rajubhai Rathod
I have TextView in one of my layout. I want keep it hide and only want make visible one time on button click, how can I do it ? My view is like below. Thanks
我的布局之一中有 TextView。我想让它隐藏，只想在单击按钮时显示一次，我该怎么做？我的观点如下。谢谢
<TextView
android:layout_marginBottom="16dp"
android:layout_marginRight="8dp"
android:id="@+id/textAuthorSign"
android:layout_gravity="right"
android:text="- ABJ Abdul Kalam"
android:textStyle="italic"
android:textSize="16sp"
android:typeface="serif"
android:visibility="invisible"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
Thanks
谢谢
采纳答案by Shank
I think you want a toggle (As stated by the question title)
我想你想要一个切换（如问题标题所述）
XML File:
XML文件：
<Button
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:text="@string/self_destruct"
android:onClick="hide" />
<TextView
android:layout_marginBottom="16dp"
android:layout_marginRight="8dp"
android:id="@+id/textAuthorSign"
android:layout_gravity="right"
android:text="- ABJ Abdul Kalam"
android:textStyle="italic"
android:textSize="16sp"
android:visibility="invisible"
android:typeface="serif"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
Java:
爪哇：
public void hide(View view) {
TextView txtView = (TextView)findViewById(R.id.textAuthorSign);
//Toggle
if (txtView.getVisibility() == View.VISIBLE)
txtView.setVisibility(View.INVISIBLE);
else
txtView.setVisibility(View.VISIBLE);
//If you want it only one time
//txtView.setVisibility(View.VISIBLE);
}
回答by BananaBuisness
You can use setVisibilitymethod as of this example:
您可以使用setVisibility本示例中的方法：
TextView tv = (TextView)findViewById(R.id.textAuthorSign);
tv.setVisibility(View.VISIBLE);
Will make your view visible and View.invisablewill make your view invisible.
将使您的视图可见，View.invisable并使您的视图不可见。
You can also do View.GONEand then the TextView won't take any space on the layout...
您也可以这样做View.GONE，然后 TextView 不会在布局上占用任何空间...
回答by Mr. Negi
First get the reference to the textView:
首先获取对textView的引用：
TextView textView = (TextView)findViewById(R.id.textViewName);
Then
然后
textView.setVisibility(TextView.VISIBLE);
