-1
在编译我得到这个错误:的Android不兼容类型的错误
error: incompatible types: <anonymous WebViewClient> cannot be converted to Context
错误是由该行未来:
progress = ProgressDialog.show(this, "", "Loading...", true);
this
,就是要Context
类的,我觉得它的东西要做到这一点,我不明白上下文是什么或如何解决它。
MainActivity.java
public class MainActivity extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener {
ProgressDialog progress;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
WebView webView = (WebView) findViewById(R.id.webView);
webView.getSettings().setJavaScriptEnabled(true);
webView.setWebViewClient(new WebViewClient() {
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
@Override
public boolean shouldOverrideUrlLoading(WebView webView, String urlNewString) {
webView.loadUrl("http://www.google.com");
return true;
}
@Override
public void onPageStarted(WebView webView, String url, Bitmap facIcon) {
progress = ProgressDialog.show(this, "", "Loading...", true); // the offending line
}
@Override
public void onPageFinished(WebView webView, String url) {
drawer.closeDrawer(GravityCompat.START);
progress.dismiss();
}
public void onReceivedError(WebView webView, int errorCode, String description, String failingUrl) {
webView.loadUrl("file:///android_asset/www/error.html");
drawer.openDrawer(GravityCompat.START);
progress.dismiss();
}
});
.
.
}
.
.
}
谢谢,这是固定的错误。但现在它正在运行,我可以看到代码有严重问题,谷歌网页无法加载,并且它不再响应android后退按钮。 – Bazley