无法访问Android中Webview的html文件中存在的url

我正在尝试使用ShouldOverrideUrlLoading方法访问URL.由于某些原因,当我尝试访问html文件中存在的url时,出现网页不可用错误.以前我可以访问该url,因为我将html文件存储在原始文件夹中,但是我需要将其移至资产中文件夹,因为代码看起来更干净.这是我的代码,谁能让我知道如何解决这个问题.

webview.setWebChromeClient(new WebChromeClient());
webview.setWebViewClient(new WebViewClient());
webview.loadUrl("file:///android_asset/myfile/file.html");
webview.setVerticalScrollBarEnabled(false);
webview.setWebViewClient(new WebViewClient()
{
    public boolean shouldOverrideUrlLoading(WebView view, String url) {

        if (url.equalsIgnoreCase("some text")){
            setDialog("some fancy text");
        }

解决方法:

尝试先获取文件的真实路径,然后按以下方式尝试：

String YourURI="/android_asset/myfile/file.html";
YourURI = new File(getRealPathFromURI(YourURI));

//Got the Real Path Of the File

private String getRealPathFromURI(Uri contentURI) {
  Cursor cursor = getContentResolver().query(contentURI, null, null, null, null); 
  cursor.moveToFirst(); 
  int idx = cursor.getColumnIndex(MediaStore.Images.ImageColumns.DATA); 
  return cursor.getString(idx); 
}

webview.setWebChromeClient(new WebChromeClient());
webview.setWebViewClient(new WebViewClient());
webview.loadUrl(YourURI);                      //**Used the Real Path**
webview.setVerticalScrollBarEnabled(false);
webview.setWebViewClient(new WebViewClient()
{
    public boolean shouldOverrideUrlLoading(WebView view, String url) {

        if (url.equalsIgnoreCase("some text")){
            setDialog("some fancy text");
        }
}    

如果文件在SDCARD中：

webview.setWebChromeClient(new WebChromeClient());
webview.setWebViewClient(new WebViewClient());
if (!Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED))
{
  Log.d(TAG, "No SDCARD");
} 
else 
{
  webview.loadUrl("file://"+Environment.getExternalStorageDirectory()
                                   +"/android_asset/myfile/file.html");
}
webview.setVerticalScrollBarEnabled(false);
webview.setWebViewClient(new WebViewClient()
{
    public boolean shouldOverrideUrlLoading(WebView view, String url) {

        if (url.equalsIgnoreCase("some text")){
            setDialog("some fancy text");
        }
}    

最终编辑：-此代码非常适合资产文件夹

public class MyActivity extends Activity {  
    @Override  
    public void onCreate(Bundle savedInstanceState) {  
        super.onCreate(savedInstanceState);
        setContentView(R.layout.webview);  
        WebView webview;  
        webview = (WebView) findViewById(R.id.webView1);  
        webview.loadUrl("file:///android_asset/myfile/file.html");
    }  
}

标签：webview,android-webview,android
来源： https://codeday.me/bug/20191101/1980695.html