안드로이드 - 스피너를 사용하여 애셋에서 WebView로드

애셋 폴더에있는 HTML 파일을 사용하여 WebView를 채워야하는 스피너가 있습니다. 내 코드가 강하하지만 분명히 작동하지 않습니다. 나는 자바와 오류를 첨부 할 것이다.안드로이드 - 스피너를 사용하여 애셋에서 WebView로드

나는 여기서 실수를 저지르고 내가 뭘 잘못하고 있는지 알아야 할 필요가 있음을 알고있다.

public class atcSectionWeb extends Activity { 

public static final int DIALOG_DOWNLOAD_PROGRESS = 0; 
private ProgressDialog mProgressDialog; 

Spinner spLoadFrom; 
private ArrayAdapter<CharSequence> spinnerArrayAdapter; 

String name[] = { "1.html", "2.html", "3.html", "etc.html" }; 
String displayName[] = {"1st Name", "2nd Name", "3rd name", "And So On" }; 

public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.atcsectionweb); 

    mProgressDialog = new ProgressDialog(atcSectionWeb.this); 
    mProgressDialog.setIndeterminate(false); 
    mProgressDialog.setMax(100); 
    mProgressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL); 

    spLoadFrom = (Spinner) findViewById(R.id.Spinner02); 

    spinnerArrayAdapter = new ArrayAdapter<CharSequence>(this, 
      android.R.layout.simple_spinner_item, displayName); 
    spinnerArrayAdapter 
      .setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); 
    spLoadFrom.setAdapter(spinnerArrayAdapter); 

    SpinnerListener spListener = new SpinnerListener(); 
    spLoadFrom.setOnItemSelectedListener(spListener); 


    Button atcBack = (Button) findViewById(R.id.atcBacksecweb); 
    atcBack.setOnClickListener(new View.OnClickListener() { 

     public void onClick(View v) { 
      // TODO Auto-generated method stub 
      setResult(RESULT_OK); 
      finish(); 
     } 
    }); 

} 

@Override 
public boolean onCreateOptionsMenu(Menu menu) { 
    MenuInflater inflater = getMenuInflater(); 
    inflater.inflate(R.menu.menu2, menu); 
    return true; 
} 

@Override 
public boolean onOptionsItemSelected(MenuItem item) { 
    switch (item.getItemId()) { 
    case R.id.atcAbout2: 
     Intent atcAboutWeb = new Intent(atcSectionWeb.this, 
       atcAboutWeb.class); 
     startActivity(atcAboutWeb); 
     break; 
    case R.id.atcContact2: 
     emailme(); 
     break; 
    } 
    return true; 
} 

private void emailme() { 
    // TODO Auto-generated method stub 
    try{ 
    String domsEmail = ""; 
    String message = "Insert Message Here"; 
    String myemail[] = { domsEmail }; 
    Intent emailIntent = new Intent(android.content.Intent.ACTION_SEND); 
    emailIntent.putExtra(android.content.Intent.EXTRA_EMAIL, myemail); 
    emailIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, ""); 
    emailIntent.setType("plain/text"); 
    emailIntent.putExtra(android.content.Intent.EXTRA_TEXT, message); 
    startActivity(emailIntent); 
    }catch (Exception e) { 
     Toast.makeText(
       atcSectionWeb.this, 
       "No email application is available, please download one from Play store.", 
       Toast.LENGTH_LONG).show(); 

    } 
} 

public class SpinnerListener implements OnItemSelectedListener { 
    public SpinnerListener() { 
    } 

    public void onItemSelected(AdapterView<?> arg0, View arg1, 
      final int position, long arg2) { 

     Button atcSection = (Button) findViewById(R.id.atcSubmitweb); 
     atcSection.setOnClickListener(new View.OnClickListener() { 

      public void onClick(View v) { 

       WebView wv = (WebView)findViewById(R.id.ctiWebView); 
       wv.setWebViewClient(new WebViewClient() { 
         @Override 
         public boolean shouldOverrideUrlLoading(WebView view, String url) 
         { 
         view.loadUrl(url); 
         return true; 
         } 
        });   
       wv.loadUrl("file:///android_asset/" + position); 




      } 
     }); 

    } 

    public void onNothingSelected(AdapterView<?> arg0) { 

    } 
} 
}

로그 캣 : 살만의 코드를 복사 한 후

07-28 23:40:09.438: E/AndroidRuntime(584): FATAL EXCEPTION: main 
07-28 23:40:09.438: E/AndroidRuntime(584): java.lang.NullPointerException 
07-28 23:40:09.438: E/AndroidRuntime(584): at com.assistant.atcSectionWeb$SpinnerListener$1.onClick(atcSectionWeb.java:240) 
07-28 23:40:09.438: E/AndroidRuntime(584): at android.view.View.performClick(View.java:2485) 
07-28 23:40:09.438: E/AndroidRuntime(584): at android.view.View$PerformClick.run(View.java:9080) 
07-28 23:40:09.438: E/AndroidRuntime(584): at android.os.Handler.handleCallback(Handler.java:587) 
07-28 23:40:09.438: E/AndroidRuntime(584): at android.os.Handler.dispatchMessage(Handler.java:92) 
07-28 23:40:09.438: E/AndroidRuntime(584): at android.os.Looper.loop(Looper.java:123) 
07-28 23:40:09.438: E/AndroidRuntime(584): at android.app.ActivityThread.main(ActivityThread.java:3683) 
07-28 23:40:09.438: E/AndroidRuntime(584): at java.lang.reflect.Method.invokeNative(Native Method) 
07-28 23:40:09.438: E/AndroidRuntime(584): at java.lang.reflect.Method.invoke(Method.java:507) 
07-28 23:40:09.438: E/AndroidRuntime(584): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839) 
07-28 23:40:09.438: E/AndroidRuntime(584): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597) 
07-28 23:40:09.438: E/AndroidRuntime(584): at dalvik.system.NativeStart.main(Native Method)

오류 : 응용 프로그램의 전체 코드는 당신의 목적을 위해이 만든 붙여 넣기

07-29 01:04:58.290: E/AndroidRuntime(532): FATAL EXCEPTION: main 
07-29 01:04:58.290: E/AndroidRuntime(532): java.lang.NullPointerException 
07-29 01:04:58.290: E/AndroidRuntime(532): at com.assistant.atcSectionWeb$SpinnerListener.onItemSelected(atcSectionWeb.java:236) 
07-29 01:04:58.290: E/AndroidRuntime(532): at android.widget.AdapterView.fireOnSelected(AdapterView.java:871) 
07-29 01:04:58.290: E/AndroidRuntime(532): at android.widget.AdapterView.access$200(AdapterView.java:42) 
07-29 01:04:58.290: E/AndroidRuntime(532): at android.widget.AdapterView$SelectionNotifier.run(AdapterView.java:837) 
07-29 01:04:58.290: E/AndroidRuntime(532): at android.os.Handler.handleCallback(Handler.java:587) 
07-29 01:04:58.290: E/AndroidRuntime(532): at android.os.Handler.dispatchMessage(Handler.java:92) 
07-29 01:04:58.290: E/AndroidRuntime(532): at android.os.Looper.loop(Looper.java:123) 
07-29 01:04:58.290: E/AndroidRuntime(532): at android.app.ActivityThread.main(ActivityThread.java:3683) 
07-29 01:04:58.290: E/AndroidRuntime(532): at java.lang.reflect.Method.invokeNative(Native Method) 
07-29 01:04:58.290: E/AndroidRuntime(532): at java.lang.reflect.Method.invoke(Method.java:507) 
07-29 01:04:58.290: E/AndroidRuntime(532): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839) 
07-29 01:04:58.290: E/AndroidRuntime(532): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597) 
07-29 01:04:58.290: E/AndroidRuntime(532): at dalvik.system.NativeStart.main(Native Method)

출처

2012-07-28 user1363871

webView가 setContentView에 나열된 내용과 다를 수 있습니까? 그렇다면 그것은 스피너가있는 레이아웃을 갖는 목적을 무효화 할 것입니다. 사용자는 그 시점에서 항목, 제출 및 웹보기를 선택해야합니다. – user1363871

package asdasd.adasd.ad; 


import android.app.Activity; 
import android.app.ProgressDialog; 
import android.content.Intent; 
import android.os.Bundle; 
import android.view.Menu; 
import android.view.MenuInflater; 
import android.view.MenuItem; 
import android.view.View; 
import android.webkit.WebView; 
import android.webkit.WebViewClient; 
import android.widget.AdapterView; 
import android.widget.AdapterView.OnItemSelectedListener; 
import android.widget.ArrayAdapter; 
import android.widget.Button; 
import android.widget.Spinner; 
import android.widget.Toast; 

public class AsdasdasActivity extends Activity { 

public static final int DIALOG_DOWNLOAD_PROGRESS = 0; 
private ProgressDialog mProgressDialog; 

Spinner spLoadFrom; 
private ArrayAdapter<CharSequence> spinnerArrayAdapter; 

String name[] = { "1.html", "2.html", "3.html"}; 
String displayName[] = {"1st Name", "2nd Name", "3rd name" }; 

public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.main); 

    mProgressDialog = new ProgressDialog(AsdasdasActivity.this); 
    mProgressDialog.setIndeterminate(false); 
    mProgressDialog.setMax(100); 
    mProgressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL); 

    spLoadFrom = (Spinner) findViewById(R.id.Spinner02); 

    spinnerArrayAdapter = new ArrayAdapter<CharSequence>(this, 
      android.R.layout.simple_spinner_item, displayName); 
    spinnerArrayAdapter 
      .setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); 
    spLoadFrom.setAdapter(spinnerArrayAdapter); 

    SpinnerListener spListener = new SpinnerListener(); 
    spLoadFrom.setOnItemSelectedListener(spListener); 


    WebView wv = (WebView)findViewById(R.id.webView1); 

    wv.getSettings().setJavaScriptEnabled(true); 
/* wv.setWebViewClient(new WebViewClient() { 
      @Override 
      public boolean shouldOverrideUrlLoading(WebView view, String url) 
      { 
      view.loadUrl(url); 
      return true; 
      } 
     });  
     */  
    wv.loadUrl("file:///android_asset/htmlfileMine.html"); 


    Button atcBack = (Button) findViewById(R.id.atcBacksecweb); 
    atcBack.setOnClickListener(new View.OnClickListener() { 

     public void onClick(View v) { 
      // TODO Auto-generated method stub 
      setResult(RESULT_OK); 
      finish(); 
     } 
    }); 

} 



private void emailme() { 
    // TODO Auto-generated method stub 
    try{ 
    String domsEmail = ""; 
    String message = "Insert Message Here"; 
    String myemail[] = { domsEmail }; 
    Intent emailIntent = new Intent(android.content.Intent.ACTION_SEND); 
    emailIntent.putExtra(android.content.Intent.EXTRA_EMAIL, myemail); 
    emailIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, ""); 
    emailIntent.setType("plain/text"); 
    emailIntent.putExtra(android.content.Intent.EXTRA_TEXT, message); 
    startActivity(emailIntent); 
    }catch (Exception e) { 
     Toast.makeText(
       AsdasdasActivity.this, 
       "No email application is available, please download one from Play store.", 
       Toast.LENGTH_LONG).show(); 

    } 
} 

public class SpinnerListener implements OnItemSelectedListener { 
    public SpinnerListener() { 
    } 

    public void onItemSelected(AdapterView<?> arg0, View arg1, 
      final int position, long arg2) { 


       WebView wv = (WebView)findViewById(R.id.webView1); 

       wv.getSettings().setJavaScriptEnabled(true); 
       wv.setWebViewClient(new WebViewClient() { 
         @Override 
         public boolean shouldOverrideUrlLoading(WebView view, String url) 
         { 
         view.loadUrl(url); 
         return true; 
         } 
        });  

       wv.loadUrl("file:///android_asset/"+name[position]); 






    } 

    public void onNothingSelected(AdapterView<?> arg0) { 

    } 
} 
}

/// XML 레이아웃

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent" 
    android:orientation="vertical" > 

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

    <Spinner 
     android:id="@+id/Spinner02" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" /> 

    <ProgressBar 
     android:id="@+id/progressBar1" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" /> 

    <Button 
     android:id="@+id/atcSubmitweb" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:text="Button" /> 

    <Button 
     android:id="@+id/atcBacksecweb" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:text="Button" /> 

    <WebView 
     android:id="@+id/webView1" 
     android:layout_width="300dp" 
     android:layout_height="300dp" /> 

</LinearLayout>

감사합니다.

출처

2012-07-29 00:41:49 SALMAN

해당 코드를 추가하면 Spinner 클래스로 이동하는 버튼을 선택하자마자 Force Close가 표시됩니다. 위의 오류를 붙여 넣습니다. – user1363871

왜 그 버튼이 필요합니까? 그리고 왜 그것을 회 전자에 가져 가고 싶습니까? – SALMAN

웹 뷰가 제대로 열리면 버튼이 필요하지 않습니다. 앱이 시작 되 자마자 바로 멈추므로 자동으로 닫힙니다. – user1363871

//call that class on button click evevnt 
WebDialog dialog =new WebDialog(this,"file:///android_asset/index.html"); 
     dialog.show(); 

//Put this class into your package 
public class WebDialog extends Dialog 
{ 

    static final int      BLUE     = 0xFF6D84B4; 
    static final float[]     DIMENSIONS_DIFF_LANDSCAPE = 
                    { 20, 60 }; 
    static final float[]     DIMENSIONS_DIFF_PORTRAIT = 
                    { 40, 60 }; 
    static final FrameLayout.LayoutParams FILL     = new FrameLayout.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.FILL_PARENT); 
    static final int      MARGIN     = 4; 
    static final int      PADDING     = 2; 
    static final String     DISPLAY_STRING   = "touch"; 

    private String      mUrl; 
// private DialogListener    mListener; 
    private ProgressDialog    mSpinner; 
    private WebView      mWebView; 
    private LinearLayout     mContent; 
    private TextView      mTitle; 

    public WebDialog(Context context, String url) 
    { 
     super(context); 
     mUrl = url; 
    } 

    @Override 
    protected void onCreate(Bundle savedInstanceState) 
    { 
     super.onCreate(savedInstanceState); 
     mSpinner = new ProgressDialog(getContext()); 
     mSpinner.requestWindowFeature(Window.FEATURE_NO_TITLE); 
     mSpinner.setMessage("Loading..."); 

     mContent = new LinearLayout(getContext()); 
     mContent.setOrientation(LinearLayout.VERTICAL); 
     setUpTitle(); 
     setUpWebView(); 
     Display display = getWindow().getWindowManager().getDefaultDisplay(); 
     final float scale = getContext().getResources().getDisplayMetrics().density; 
     int orientation = getContext().getResources().getConfiguration().orientation; 
     float[] dimensions = (orientation == Configuration.ORIENTATION_LANDSCAPE) ? DIMENSIONS_DIFF_LANDSCAPE : DIMENSIONS_DIFF_PORTRAIT; 
     addContentView(mContent, new LinearLayout.LayoutParams(display.getWidth() - ((int) (dimensions[0] * scale + 0.5f)), display.getHeight() - ((int) (dimensions[1] * scale + 0.5f)))); 
    } 

    private void setUpTitle() 
    { 
     requestWindowFeature(Window.FEATURE_NO_TITLE); 
     Drawable icon = getContext().getResources().getDrawable(R.drawable.ic_launcher); 
     mTitle = new TextView(getContext()); 
     mTitle.setText("Website"); 
     mTitle.setTextColor(Color.WHITE); 
     mTitle.setTypeface(Typeface.DEFAULT_BOLD); 
     mTitle.setBackgroundColor(BLUE); 
     mTitle.setPadding(MARGIN + PADDING, MARGIN, MARGIN, MARGIN); 
//  mTitle.setCompoundDrawablePadding(MARGIN + PADDING); 
//  mTitle.setCompoundDrawablesWithIntrinsicBounds(icon, null, null, null); 
     mContent.addView(mTitle); 
    } 

    private void setUpWebView() 
    { 
     mWebView = new WebView(getContext()); 
     mWebView.setVerticalScrollBarEnabled(false); 
     mWebView.setHorizontalScrollBarEnabled(false); 
     mWebView.setWebViewClient(new WebDialog.DialogWebViewClient()); 
     mWebView.getSettings().setJavaScriptEnabled(true); 

     System.out.println(" mURL = "+mUrl); 

     mWebView.loadUrl(mUrl); 
     mWebView.setLayoutParams(FILL); 
     mContent.addView(mWebView); 
    } 

    private class DialogWebViewClient extends WebViewClient 
    { 

     @Override 
     public boolean shouldOverrideUrlLoading(WebView view, String url) 
     { 
      view.loadUrl(url); 

      return true; 
     } 

     @Override 
     public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) 
     { 
      super.onReceivedError(view, errorCode, description, failingUrl); 
      WebDialog.this.dismiss(); 
     } 

     @Override 
     public void onPageStarted(WebView view, String url, Bitmap favicon) 
     { 
      super.onPageStarted(view, url, favicon); 
      mSpinner.show(); 
     } 

     @Override 
     public void onPageFinished(WebView view, String url) 
     { 
      super.onPageFinished(view, url); 
      String title = mWebView.getTitle(); 
      if (title != null && title.length() > 0) 
      { 
       mTitle.setText(title); 
      } 
      mSpinner.dismiss(); 
     } 

    } 
}

출처

2012-07-30 11:24:02 iAndroid

안드로이드 - 스피너를 사용하여 애셋에서 WebView로드

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