我正在尝试在我的Android应用中创建WebView
,我有导入,如下所示:
import android.webkit.WebView;
import android.webkit.WebViewClient;
我已添加 uses-permission ,如下所示:
<uses-permission android:name="android.permission.INTERNET" />
我将此作为 onCreate():
private WebView webview;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
webview =(WebView)findViewById(R.id.webView);
webview.setWebViewClient(new WebViewClient());
webview.getSettings().setJavaScriptEnabled(true);
webview.getSettings().setDomStorageEnabled(true);
webview.setOverScrollMode(WebView.OVER_SCROLL_NEVER);
webview.loadUrl("https://www.google.com");
}
我仍然无法让它工作,因为我在以下内容中遇到Cannot Resolve Method
错误:
setWebViewClient
getSettings()
setOverScrollMode
loadUrl
以下是和Cannot Resolve Symbol
:
R.id.webView
OVER_SCROLL_NEVER
任何人都可以帮忙吗?
XML:
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.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=".WebView">
<WebView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/webview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
/>
<Button
android:id="@+id/button3"
android:layout_width="wrap_content"
android:layout_height="48dp"
android:layout_marginEnd="8dp"
android:layout_marginStart="10dp"
android:onClick="Home"
android:text="Back"
app:layout_constraintEnd_toStartOf="@+id/WebView"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</android.support.constraint.ConstraintLayout>
答案 0 :(得分:0)
您定义了自己的名为WebView
的Java类,其中一个用作Activity
。因此,编译器难以区分您自己的WebView
和android.webkit.WebView
。这涵盖了你的大多数问题。
例外是R.id.webView
的符号未找到错误。你得到的是因为你的布局有android:id="@+id/webview"
。 Android中的大多数内容都区分大小写,包括小部件ID。我建议在这两个地方使用小写webview
。
答案 1 :(得分:0)
<强> JavaCode:强>
public class YourClassName extends AppCompatActivity{
private WebView wv_content = null;
private WebSettings webSettings = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.web_page);
wv_content = (WebView) findViewById(R.id.webview);
wv_content.getSettings().setAllowFileAccess(true);
wv_content.getSettings().setSupportZoom(true);
wv_content.setVerticalScrollBarEnabled(true);
wv_content.getSettings().setJavaScriptCanOpenWindowsAutomatically(true);
wv_content.getSettings().setLayoutAlgorithm(LayoutAlgorithm.NORMAL);
wv_content.getSettings().setLoadWithOverviewMode(true);
wv_content.getSettings().setUseWideViewPort(true);
wv_content.getSettings().setJavaScriptEnabled(true);
wv_content.getSettings().setPluginState(WebSettings.PluginState.ON);
wv_content.getSettings().setSaveFormData(false);
wv_content.getSettings().setSavePassword(false);
wv_content.getSettings().setRenderPriority(RenderPriority.HIGH);
wv_content.getSettings().setCacheMode(WebSettings.LOAD_NO_CACHE);
wv_content.getSettings().setJavaScriptEnabled(true);
wv_content.getSettings().setLoadWithOverviewMode(true);
wv_content.getSettings().setUseWideViewPort(true);
webSettings = wv_content.getSettings();
webSettings.setJavaScriptEnabled(true);
webSettings.setSupportZoom(true);
webSettings.setBuiltInZoomControls(true);
wv_content.loadUrl("https://www.google.com");
}
}
<强> XML 强>:
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.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=".WebView">
<WebView
android:id="@+id/webview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"/>
<Button
android:id="@+id/button3"
android:layout_width="wrap_content"
android:layout_height="48dp"
android:layout_marginEnd="8dp"
android:layout_marginStart="10dp"
android:onClick="Home"
android:text="Back"
app:layout_constraintEnd_toStartOf="@+id/WebView"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</android.support.constraint.ConstraintLayout>