【发布时间】:2021-07-16 07:11:00
【问题描述】:
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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"
tools:context="com.example.testing.WebViewExample">
<WebView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/webView"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
这段代码用于 Webview.java
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
WebView mywebview = (WebView) findViewById(R.id.webView);
mywebview.loadUrl("https://www.google.com/");
}
}
但问题是我无法查看谷歌并且显示错误,因为网页不可用
https://www.google.com/ 的网页无法加载,因为:
net::ERR_CACHE_MISS
【问题讨论】:
标签: java layout webview super oncreate