Java 错误-can';“找不到符号”;“网络视图”;
我已经试着运行下面的程序,但是我在编译时遇到了上面的错误 MainActivity.java:Java 错误-can';“找不到符号”;“网络视图”;,java,android,Java,Android,我已经试着运行下面的程序,但是我在编译时遇到了上面的错误 MainActivity.java: import android.os.Bundle; import android.support.design.widget.FloatingActionButton; import android.support.design.widget.Snackbar; import android.support.v7.app.AppCompatActivity; import android.suppor
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.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
public class MainActivity extends AppCompatActivity {
private WebView myWebView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
myWebView = (WebView)findViewById(R.id.webView);
WebSettings webSettings = myWebView.getSettings();
webSettings.setJavaScriptEnabled(true);
myWebView.loadUrl("http://www.toptipstricks.com");
myWebView.setWebViewClient(new WebViewClient());
}
@Override
public void onBackPressed() {
if(myWebView.canGoBack()){
myWebView.goBack();
} else {
super.onBackPressed();
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
Android Manifest.xml:
<uses-permission android:name="android.permission.INTERNET"></uses-permission>
我得到的错误是找不到symbol webview!我是java新手,所以我不确定在哪里检查错误 确保webview组件的id进入“活动主视图”是“webview”。大概是这样的:
<WebView
android:id="@+id/webView"
android:layout_width="match_parent"
android:layout_height="match_parent">
</WebView>
请发布您的错误日志以及您的布局。将您的错误作为图像发布。.错误日志请从控制台发布错误消息,并确保在中定义了id webViewlayout@ramiwahdan发布您的XML文件。如果我的回答对您有帮助,请接受。谢谢。