sharedpreferences

问题 I have a listview with choice mode, and it working. I want to save that checked item to shared preference, then use it in another activity. But, my SharedPreferences doesn'nt save my string correct, and save another file call DATA_Preferences that i never call in my code. The result is my Next activity get wrong value.. Here is my code that i use to save my string and call it use by another activity: public void onClick(View v) { SparseBooleanArray checked = listView.getCheckedItemPositions()

问题 I am developing an android application. In my application, I am displaying images from url using xml parsing. I want to store images in device's Shared Preferences. How can I store image in shared preferences and retrieve image from shared preferences? How is it possible? Thanks All. 回答1: I'll try to give you an idea, i use to store temporary object using shared preference, so use kind of serialization, i wrote my own Base64 Encoder/Decorer and basically. Step 1) Encode your Bitmap or JP..etc

问题 i am trying to make launcher. i have have displayed the custom list with app_label,icon,package_name and check box. now i want to save selected app_name in shared preferences. i m not getting how to go through it. kindly help. here is my code: adapter = new ArrayAdapter<AppDetail>(MainActivity.this, android.R.layout.simple_list_item_multiple_choice, apps) { @Override public View getView(int position, View convertView, ViewGroup parent) { View row = convertView; if (row == null) { convertView

问题 I have created a recyclerView and handle items in it being clicked. Now I need to change the text displayed when one item is clicked. First it says 'day' and after I click it it should say 'finished'. It worked but after I close and re-open the activity it says 'day' again. So what do I need to do to make the item text persist? private OnFragmentInteractionListener mListener; List<String> list; MyListAdapter adapter; RecyclerView recyclerView; String pressed="finished"; public MainFragment()

问题 Im trying to make an EULA for my app, but there is a different EULA for the different countries we work with. my idea was that i save a String in SharedPreferences like ZA for South Africa and KE for Kenya. So if you click the South Africa button, it will save the string in SharedPreferences as ZA and the same for Kenya. Once the button has been clicked it the new activity will then load the appropriate EULA by pulling the ZA or KE string from the SharedPreferences. This is what i have at the

问题 First, I was using Shared preferences for my application for sending data from one activity to another, when listview is clicked in first activity, but I have a trouble when I click another list, the detail from that other list is the same as the first. When I try to use intent, it's still the same. I have used: settings.edit().clear().commit(); and settings.edit().remove().commit(); but it doesn't work. is there any wrong? this is my first activity : lv.setOnItemClickListener(new

问题 Good evening. I'm trying to save the choice the user makes in Spinner in SharedPreferences, when he clicks OK, but I'm not getting it, can anyone help me? Then I want to redeem the choice made when it opens the application again and puts it in a textView. Follow my code. mShowDialog = (Button) findViewById(R.id.btnEscolhaCidade); mShowDialog.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { AlertDialog.Builder mBuilder = new AlertDialog.Builder

问题 Hi i created one media player. when my media player application load that time my dialog box also first display.... but now i am expecting only load once my dialog box..if i run 1st time in new device my application open dialog box otherwise show only video thumbnails......i confused please help me...... My coding: public class videothumb extends Activity { private final static Uri MEDIA_EXTERNAL_CONTENT_URI = MediaStore.Video.Media.EXTERNAL_CONTENT_URI; private final static String _ID =

问题 I am able to login to the System, and Logout from the System.When i presses back from the Dashboard without making Logout from the System.I have login to the System eachtime.How can i restrict to loginPage without making the Logout from the System.I need to open the Dashbord page,if the user havenot logout from the System and direct to the Login if the accesstoken time expires Login public class Login extends AppCompatActivity implements View.OnClickListener { EditText userName, Password;

问题 I am trying an application where I am using Shared Preference. When I delete the preference file from data/data/com.your.package.name/shared_prefs/mySharedPref.xml manually using Android monitor, still the app is able to read the preference values. I am assuming that some how the value is retained in main memory of the phone. Am I correct & what is the viable solution to clear shared preferences totally leaving no traces. But one thing I want to clear preference only if the file is wiped. For