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POClear Cache App: Why it doesn't work?
 

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  1. POClear Cache App: Why it doesn't work?
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    <p>I want to click on the preference is cleared the cache of my app. I did this, but it does not work and there are errors. How can I fix?</p> <p>This is the whole source. Many Thanks!!!!!!</p> <pre><code>public class Impo extends PreferenceActivity{ Preference info; Intent intent; Preference cache; @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); this.addPreferencesFromResource(R.xml.layout); info= (Preference) this.findPreference("info"); info.setOnPreferenceClickListener( new OnPreferenceClickListener() { public boolean onPreferenceClick(Preference preference) { intent = new Intent(getBaseContext(), Info.class); startActivity(intent); return true; }}); cache = (Preference)this.findPreference("cache"); cache.setOnPreferenceClickListener(new OnPreferenceClickListener() { } } public static void clearCache(final Context context) { final File cache=context.getCacheDir(); final File appDir=new File(cache.getParent()); if(appDir.exists()) { // you might be able to change this whole code block to just "deleteDir(appDir)" final String[] children=appDir.list(); for(final String childFilePath : children) if(!childFilePath.equals("lib")) { deleteDir(new File(appDir,childFilePath)); Log.i("TAG","**************** File /data/data/APP_PACKAGE/"+childFilePath+" DELETED *******************"); } } } public static boolean deleteDir(final File dir) { if(dir==null) return true; if(dir.isDirectory()) { final String[] children=dir.list(); for(final String childFilePath : children) { final boolean success=deleteDir(new File(dir,childFilePath)); if(!success) return false; } } return dir.delete(); } } </code></pre> <p>.......................................</p>
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    1. USGianni rossi
    1. USGianni rossi
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    1. CO"it does not work and there are errors". So, tell us what errors you get, tell us what your calls to Log show, tell us what isn't working.
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      1. USYojimbo
    2. COokay. eclipse marks mistake here File appDir = new File(cache.getParent());, here }, here public static boolean deleteDir(File dir),and here if (dir != null &amp;&amp; dir.isDirectory()) {
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      1. USGianni rossi
    3. COdo you import the File class?
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      1. USVinceFR
 

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