Android: simple webview code. ERR: Unable to start Activity

I have following code:

public class reader extends Activity {

    WebView mWebView;
    String mFilename;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        mWebView = (WebView) findViewById(R.id.开发者_如何学PythonwebView1);
        setContentView(R.layout.webview);
        mWebView.loadUrl("http://www.google.com");

     }

}

When I run this, the emulator shows "Sorry:.. mireader Stopped unexpectedly" error.. Why ?

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You shouldn't call the setContentView function twice. I am guessing your onCreate method should look like:

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.webview);
    mWebView = (WebView) findViewById(R.id.webView1);
    mWebView.loadUrl("http://www.google.com");

 }

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Why do you have setContentView(R.layout.webview);? You already call setContentView two lines before.

And do you have the android.permission.INTERNET permission in your AndroidManifest.xml?

Also, you should attach the logcat output as that'll probably give you a callstack pointing you in the general direction of the problem.

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i am suggesting you to do it again create a simple project.paste the following code your main.xml

android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="@string/hello" />

and in the manifest file put the line just before ending the

and run.I think nothing wrong with it.Remove your second setContView...

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go to this link you can easily create your webview application.....

http://developer.android.com/resources/tutorials/views/hello-webview.html

add this in between your setcontentView and loadurl method

mWebView.getSettings().setJavaScriptEnabled(true);