Reputation: 41
How can I store already existing string value in SharedPreferences on button click? I have a TextView and a button: the TextView contains certain string and I want to store that in SharedPreferences on button click.
Upvotes: 1
Views: 1551
Reputation: 359
Here are methods which I use everytime to store data in shared-preferences:
private SharedPreferences app_prefs;
private final String DEVICE_TOKEN = "device_token";
public PreferenceHelper(Context context) {
app_prefs = context.getSharedPreferences(AndyConstants.PREF_NAME,
Context.MODE_PRIVATE);
this.context = context;
}
public void putDeviceToken(String deviceToken) {
Editor edit = app_prefs.edit();
edit.putString(DEVICE_TOKEN, deviceToken);
edit.commit();
}
public String getDeviceToken() {
return app_prefs.getString(DEVICE_TOKEN, null);
}
In the first method I create the shared-preferances object, in the second method I use it to put data and in third method to get data any where you need.
Upvotes: 1
Reputation: 1371
To write it:
button.setOnClickListener(new View.OnClickListener()
{
@Override
public void onClick(View v)
{
SharedPreferences sharedPref = getPreferences(Context.MODE_PRIVATE);
SharedPreferences.Editor editor = sharedPref.edit();
editor.putString("Yourkey", textView.getText()+"");
editor.commit();
}
});
And to read it:
SharedPreferences sharedPref = getPreferences(Context.MODE_PRIVATE);
String string = sharedPref.getString("Yourkey","default");
Upvotes: 2