关于visibility的属性值visible,invisible,gone的区别

前言

大家都知道visiblity这个属性，然后有些新手朋友可能会疑问，invisible与gone有什么区别，其实还是有区别的，接下来我用代码演示一遍就清楚了

visibility在xml文件的代码
android:visibility=”visible”
android:visibility=”invisible”
android:visibility=”gone”

visibility在JAVA中的代码
view.setVisibility(v.VISIBLE);
view.setVisibility(v.INVISIBLE);
view.setVisibility(v.GONE);

其中view是指修改的例如TextView对象
布局文件.xml代码如下

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:padding="50dp" android:orientation="vertical" app:layout_behavior="@string/appbar_scrolling_view_behavior" >    <TextView  android:gravity="center" android:background="@color/orange" android:text="我是Test0" android:layout_width="match_parent" android:layout_height="wrap_content" />    <TextView  android:id="@+id/text1" android:text="我是Test1" android:gravity="center" android:background="@color/colorPrimary" android:layout_width="match_parent" android:layout_height="wrap_content" android:visibility="visible"/>    <TextView  android:gravity="center" android:background="@color/colorAccent" android:text="我是Test2" android:visibility="visible" android:layout_width="match_parent" android:layout_height="wrap_content" />    <LinearLayout  android:orientation="vertical" android:layout_width="match_parent" android:layout_height="wrap_content">        <Button  android:layout_gravity="center" android:id="@+id/button1" android:layout_width="wrap_content" android:text="设置Test1为invisible" android:layout_height="wrap_content" />        <Button  android:layout_gravity="center" android:id="@+id/button2" android:text="设置Test1为gone" android:layout_width="wrap_content" android:layout_height="wrap_content" />    </LinearLayout></LinearLayout>

这里设置三个TextView以便查看效果，通过点击按钮监听改变Visibility属性值

下面是JAVA代码

package com.example.administrator.seterror;import android.app.Activity;import android.content.DialogInterface;import android.graphics.drawable.Drawable;import android.os.Bundle;import android.support.design.widget.FloatingActionButton;import android.support.design.widget.Snackbar;import android.support.v7.app.AppCompatActivity;import android.support.v7.widget.Toolbar;import android.view.View;import android.view.Menu;import android.view.MenuItem;import android.widget.Button;import android.widget.EditText;import android.widget.TextView;public class MainActivity extends Activity  {    private TextView text1 ;    private Button  button1;    private Button button2;    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        text1 = (TextView) findViewById(R.id.text1);        button1 = (Button) findViewById(R.id.button1);        button2 = (Button) findViewById(R.id.button2);        button1.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                text1.setVisibility(v.INVISIBLE);            }        });        button2.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                text1.setVisibility(v.GONE);            }        });    }}

前言

初始化

点击第一个按钮

点击第二个按钮

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