[Issue]How to get data from EditTextPreference

pjq · by **pjq** » Fri May 22, 2009 4:32 am

Hi All,
I create EditTextPreference in the code like this:

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Using java Syntax Highlighting

 
import android.app.Activity;
 
import android.content.SharedPreferences;
 
import android.os.Bundle;
 
import android.preference.*;
 
public class Settings extends PreferenceActivity {
 
        private static final String PREFERENCESFILE = "com.qisda.percy.parsexml_preferences.xml";
 
        public void onCreate(Bundle savedInstanceState) {
 
                super.onCreate(savedInstanceState);
 
                setPreferenceScreen(createPreferenceScreen());
 
        }
 
        public PreferenceScreen createPreferenceScreen() {
 
                PreferenceScreen root = getPreferenceManager().createPreferenceScreen(
 
                                this);
 
                root.setTitle("Settings");
 
                EditTextPreference city1 = new EditTextPreference(this);
 
                city1.setKey("city1");
 
                city1.setTitle("City1");
 
                city1.setDialogTitle("City1:");
 
                String aa = city1.getText();
 
                //city1.getPreferenceManager().getDefaultSharedPreferences(context);
 
                String str1 = city1.getEditText().getText().toString();
 
                city1.setSummary(getPreferences("city1"));
 
                EditTextPreference city2 = new EditTextPreference(this);
 
                city2.setKey("city2");
 
                city2.setTitle("City2");
 
                city2.setDialogTitle("City2:");
 
                String str2 = city2.getEditText().getText().toString();
 
                city2.setSummary(getPreferences("city2"));
 
                String bb = city2.getText();
 
                root.addPreference(city1);
 
                root.addPreference(city2);
 
                return root;
 
        }
 
        public String getPreferences(String keyCode)
 
        {
 
                SharedPreferences settings = getSharedPreferences(PREFERENCESFILE, 0);
 
                String preferences = settings.getString(keyCode, "Not set!");
 
                return preferences;
 
        }
 
}
 
Parsed in 0.037 seconds,  using GeSHi 1.0.8.4

in adb shell:
cd /data/data/mypackage/shared_prefs

I can see the XML files used to store the data.
So I want to get the data from the XML files directly,and then use the code to get the data:

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Using java Syntax Highlighting

SharedPreferences settings = getSharedPreferences(PREFERENCESFILE, 0);
 
                String preferences = settings.getString(keyCode, "Not set!");
Parsed in 0.030 seconds,  using GeSHi 1.0.8.4

But I get "null" when the keyCode exactly has values.

I also find in the SDK documents:it say use "String aa = city1.getText();"
can get current preference.But I also get null.

So anyone has any idea about this problem?
Thanks~~

[Issue]How to get data from EditTextPreference

[Issue]How to get data from EditTextPreference

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