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一旦啓動應用程序，我會在WebUrlActivity.class以下觸發。從主屏幕觸發下面的class後，我無法顯示網頁（主屏幕代碼我沒有放在這裏）。它以白色屏幕出現。你能給些建議麼。Android網絡瀏覽代碼不顯示網頁
在此先感謝您的建議。
package xx.xxxxx;
import android.content.Intent;
import android.graphics.Color;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.webkit.WebResourceRequest;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
public class WebUrlActivity extends AppCompatActivity {
private WebView webView;
private final String URL = "xyz.com/admin";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_web_url);
webView = (WebView) findViewById(R.id.webview);
WebSettings settings = webView.getSettings();
settings.setJavaScriptEnabled(true);
settings.setJavaScriptCanOpenWindowsAutomatically(true);
settings.setUseWideViewPort(true);
settings.setDomStorageEnabled(true);
webView.setVisibility(View.VISIBLE);
getSupportActionBar().hide();
setTitle("xyz");
setTitleColor(Color.BLACK);
webView.setWebViewClient(new WebViewClient() {
@Override
public boolean shouldOverrideUrlLoading(WebView view, WebResourceRequest request) {
view.loadUrl(request.toString());
return true;
}
});
webView.loadUrl(URL);
}
@Override
public void onBackPressed() {
if(webView.canGoBack()) {
webView.goBack();
} else {
startActivity(new Intent(this, WebUrlActivity.class));
}
}
}