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POSharedPreferences not working across Activities
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  1. POSharedPreferences not working across Activities
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    copied!<p>I'm trying to save some filters/state in one activity, and then use that data in the next activity.</p> <p>I'm using SharedPreferences, but it isn't working as I'd expected it to.</p> <pre><code> public class FilterActivity extends Activity { private static final String TAG = FilterActivity.class.getName(); EditText distanceEditor; @Override public void onPause() { super.onPause(); SharedPreferences preferences = getSharedPreferences(PreferenceKey.FILTER_PREFERENCES_NAME, MODE_WORLD_READABLE); String distance = distanceEditor.getText().toString(); preferences.edit().putString(PreferenceKey.DISTANCE, distance); preferences.edit().commit(); Log.i(TAG, "Wrote max-distance=" + distance); Log.i(TAG, "Preferences contains distance=" + preferences.getString(PreferenceKey.DISTANCE, "FAIL")); } public static class PreferenceKey { public static final String FILTER_PREFERENCES_NAME = "FilterActivity:" + "Filter_Preference_File"; public static final String DISTANCE = "FilterActivity:" + "DISTANCE"; } } </code></pre> <p>Then, the Activity that should use this preference:</p> <pre><code> public class MapActivity extends MapActivity { @Override public void onResume() { super.onResume(); SharedPreferences preferences = getSharedPreferences(FilterActivity.PreferenceKey.FILTER_PREFERENCES_NAME, MODE_WORLD_READABLE); String maxDistance = preferences.getString(FilterActivity.PreferenceKey.DISTANCE, "FAIL"); Log.i(TAG, "Read max-distance=" + maxDistance); } } </code></pre> <p>But the output I get is:</p> <pre><code> .FilterActivity( 4847): Wrote max-distance=99.9 .FilterActivity( 4847): Preferences contains distance=FAIL .MapActivity( 4847): Read max-distance=FAIL </code></pre> <p>Can anyone tell me what I'm doing wrong here?</p> <p>I am developing against API Level-8.</p>
 

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