android.content.SharedPreferences类的使用及代码示例

x33g5p2x  于2022-01-29 转载在 其他  
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本文整理了Java中android.content.SharedPreferences类的一些代码示例，展示了SharedPreferences类的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。SharedPreferences类的具体详情如下：
包路径：android.content.SharedPreferences
类名称：SharedPreferences

SharedPreferences介绍

[英]Interface for accessing and modifying preference data returned by Context#getSharedPreferences. For any particular set of preferences, there is a single instance of this class that all clients share. Modifications to the preferences must go through an Editor object to ensure the preference values remain in a consistent state and control when they are committed to storage. Objects that are returned from the various get methods must be treated as immutable by the application.

Note: currently this class does not support use across multiple processes. This will be added later.

Developer Guides

For more information about using SharedPreferences, read the Data Storage developer guide.
[中]用于访问和修改上下文#GetSharedReferences返回的首选项数据的接口。对于任何特定的首选项集，该类都有一个所有客户端共享的实例。对首选项的修改必须经过一个编辑器对象，以确保首选项值保持一致的状态，并在提交到存储时进行控制。应用程序必须将从各种get方法返回的对象视为不可变的。
注意：目前此类不支持跨多个进程使用。这将在以后添加
####开发者指南
有关使用SharedReferences的更多信息，请阅读Data Storage开发者指南。

代码示例

代码示例来源：origin: Tencent/tinker

/**
 * you can set Tinker disable in runtime at some times!
 *
 * @param context
 */
public static void setTinkerDisableWithSharedPreferences(Context context) {
  SharedPreferences sp = context.getSharedPreferences(ShareConstants.TINKER_SHARE_PREFERENCE_CONFIG, Context.MODE_MULTI_PROCESS);
  String keyName = ShareConstants.TINKER_ENABLE_CONFIG_PREFIX + ShareConstants.TINKER_VERSION;
  sp.edit().putBoolean(keyName, false).commit();
}

代码示例来源：origin: stackoverflow.com

final SharedPreferences prefs = new ObscuredSharedPreferences( 
  this, this.getSharedPreferences(MY_PREFS_FILE_NAME, Context.MODE_PRIVATE) );

// eg.    
prefs.edit().putString("foo","bar").commit();
prefs.getString("foo", null);

代码示例来源：origin: libgdx/libgdx

@Override
public boolean getBoolean (String key) {
  return sharedPrefs.getBoolean(key, false);
}

代码示例来源：origin: stackoverflow.com

SharedPreferences prefs = getSharedPreferences(MY_PREFS_NAME, MODE_PRIVATE); 
String restoredText = prefs.getString("text", null);
if (restoredText != null) {
 String name = prefs.getString("name", "No name defined");//"No name defined" is the default value.
 int idName = prefs.getInt("idName", 0); //0 is the default value.
}

代码示例来源：origin: stackoverflow.com

double getDouble(final SharedPreferences prefs, final String key, final double defaultValue) {
if ( !prefs.contains(key))
    return defaultValue;

return Double.longBitsToDouble(prefs.getLong(key, 0));
}

代码示例来源：origin: stackoverflow.com

public class MainActivity extends ActionBarActivity {
   private Button button;
   private SharedPreferences preferences;
   private String[] name = {"aa", "bb", "cc"};
   @Override
   protected void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
     setContentView(R.layout.activity_main);
     button=(Button)findViewById(R.id.button1);
     preferences=getSharedPreferences("testarray", MODE_PRIVATE);
     for(int i=0;i<3;i++)
     {
       SharedPreferences.Editor editor=preferences.edit();
       editor.putString("str"+i, name[i]);
       editor.commit();
     }
     button.setOnClickListener(new OnClickListener() {
       @Override
       public void onClick(View v) {
         startActivity(new Intent(MainActivity.this,Secondact.class));               
       }
     });
   }
 }

代码示例来源：origin: LawnchairLauncher/Lawnchair

Intent intentAction = new Intent(context, UpdateReceiver.class);
intentAction.putExtra("downloadLink", url);
intentAction.putExtra("filename", url.substring(url.lastIndexOf('/') + 1, url.length()));
    .setContentTitle(context.getResources().getString(R.string.update_available_title))
    .setContentText(context.getResources().getString(R.string.update_available))
    .setSmallIcon(R.drawable.ic_lawnchair)
    .setSound(RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION))
    .setContentIntent(pendingIntent);
NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(0, builder.build());
  prefs.edit()
      .putLong(PREFERENCES_LAST_CHECKED, System.currentTimeMillis())
      .putString(PREFERENCES_CACHED_UPDATE, update.toString())
      .apply();

代码示例来源：origin: ankidroid/Anki-Android

mSource = getIntent().getExtras().getString(EXTRA_SOURCE);
} catch (Exception e) {
  mSource = "";
TextView tv = new TextView(this);
tv.setText(getText(R.string.multimedia_editor_trans_poweredglosbe));
linearLayout.addView(tv);
TextView tvFrom = new TextView(this);
tvFrom.setText(getText(R.string.multimedia_editor_trans_from));
linearLayout.addView(tvFrom);
String fromLang = preferences.getString("translatorLastLanguageFrom", "");
String toLang = preferences.getString("translatorLastLanguageTo", "");
mSpinnerFrom.setSelection(getSpinnerIndex(mSpinnerFrom, fromLang));
mSpinnerTo.setSelection(getSpinnerIndex(mSpinnerTo, toLang));
Button btnDone = new Button(this);
btnDone.setText(getText(R.string.multimedia_editor_trans_translate));
btnDone.setOnClickListener(v -> {
  preferences.edit().putString("translatorLastLanguageFrom", fromLang1).apply();
  preferences.edit().putString("translatorLastLanguageTo", toLang1).apply();

代码示例来源：origin: Iamasoldier6/SoldierWeather

@Override
  public void onClick(View view) {
    switch (view.getId()) {
      case R.id.switch_city:
        Intent intent = new Intent(this, ChooseAreaActivity.class);
        intent.putExtra("from_weather_activity", true);
        startActivity(intent);
        finish();
        break;
      case R.id.refresh_weather:
        weatherDespText.setText("同步中");
        SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(this);
        String districtName = preferences.getString("district_name", "");
        queryWeather(districtName);
        break;
      default:
        break;
    }
  }
}

代码示例来源：origin: stackoverflow.com

a =  prefs.getString("KEY_FIRST","");
  et3.setText(a);
  btn.setOnClickListener(new View.OnClickListener()
    Intent t = new Intent(this,Kl_Activity.class);
    startActivity(t);

代码示例来源：origin: TommyLemon/APIJSON

@Override
public void finish() {
  //保存配置
  getSharedPreferences(SelectActivity.CONFIG_PATH, Context.MODE_PRIVATE)
      .edit()
      .remove(KEY_REQUEST)
      .putString(KEY_REQUEST, StringUtil.getTrimedString(tvAutoRequest))
      .commit();
  //需要在SelectActivity实时更新
  setResult(RESULT_OK, new Intent().
      putExtra(RequestActivity.RESULT_ID, id).
      putExtra(RequestActivity.RESULT_URL, url));
  super.finish();
}

代码示例来源：origin: ankidroid/Anki-Android

WebView webView;
mType = getIntent().getIntExtra(TYPE_EXTRA, TYPE_ABOUT);
marketButton.setOnClickListener(arg0 -> {
  if (mType == TYPE_ABOUT) {
    if (CompatHelper.isKindle()) {
      Intent intent = new Intent("android.intent.action.VIEW",
          Uri.parse("http://www.amazon.com/gp/mas/dl/android?p=com.ichi2.anki"));
      startActivityWithoutAnimation(intent);
    } else {
      Info.this.startActivityWithoutAnimation(new Intent(Intent.ACTION_VIEW, Uri
          .parse("market://details?id=com.ichi2.anki")));
  switch (mType) {
    case TYPE_NEW_VERSION:
      AnkiDroidApp.getSharedPrefs(Info.this.getBaseContext()).edit()
          .putString("lastVersion", VersionUtils.getPkgVersionName()).apply();
      break;
    sb.append("</body></html>");
    webView.loadDataWithBaseURL("", sb.toString(), "text/html", "utf-8", null);
    ((Button) findViewById(R.id.market)).setText(res.getString(R.string.info_rate));
    Button debugCopy = (findViewById(R.id.debug_info));
    debugCopy.setText(res.getString(R.string.feedback_copy_debug));
    debugCopy.setVisibility(View.VISIBLE);
    debugCopy.setOnClickListener(v -> copyDebugInfo());

代码示例来源：origin: Iamasoldier6/SoldierWeather

/**
 * 从SharedPreferences文件中读取存储的天气信息,并显示到界面上
 */
private void showWeather() {
  SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
  LogUtil.log("WeatherActivity", "cityName = " + prefs.getString("city_name", ""));
  LogUtil.log("WeatherActivity", "temperature = " + prefs.getString("temperature", ""));
  LogUtil.log("WeatherActivity", "weather = " + prefs.getString("weather", ""));
  LogUtil.log("WeatherActivity", "date = " + prefs.getString("date", ""));
  cityNameText.setText(prefs.getString("city_name", ""));
  weatherDespText.setText(prefs.getString("weather", ""));
  temperature.setText(prefs.getString("temperature", ""));
  currentDateText.setText(prefs.getString("date", ""));
  Intent intent = new Intent(this, AutoUpdateService.class);
  startService(intent);
}

代码示例来源：origin: avjinder/Minimal-Todo

app.send(this);
theme = getActivity().getSharedPreferences(MainFragment.THEME_PREFERENCES, MODE_PRIVATE).getString(MainFragment.THEME_SAVED, MainFragment.LIGHTTHEME);
if (theme.equals(MainFragment.LIGHTTHEME)) {
  getActivity().setTheme(R.style.CustomStyle_LightTheme);
UUID id = (UUID) i.getSerializableExtra(TodoNotificationService.TODOUUID);
mItem = null;
for (ToDoItem toDoItem : mToDoItems) {
mtoDoTextTextView.setText(mItem.getToDoText());
  mSnoozeTextView.setTextColor(getResources().getColor(R.color.secondary_text));
} else {
  mSnoozeTextView.setTextColor(Color.WHITE);
  mSnoozeTextView.setCompoundDrawablesWithIntrinsicBounds(
      R.drawable.ic_snooze_white_24dp, 0, 0, 0
mRemoveToDoButton.setOnClickListener(new View.OnClickListener() {
  @Override
  public void onClick(View v) {

代码示例来源：origin: ankidroid/Anki-Android

public static void scheduleNotification(Context context) {
    AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
    SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(context);
    if (Integer.parseInt(sp.getString("minimumCardsDueForNotification", "1000001")) <= 1000000) {
      return;
    }

    final Calendar calendar = Calendar.getInstance();
    calendar.set(Calendar.HOUR_OF_DAY, sp.getInt("dayOffset", 0));
    calendar.set(Calendar.MINUTE, 0);
    calendar.set(Calendar.SECOND, 0);
    final PendingIntent notificationIntent =
        PendingIntent.getBroadcast(context, 0, new Intent(context, NotificationService.class), 0);
    alarmManager.setRepeating(
        AlarmManager.RTC_WAKEUP,
        calendar.getTimeInMillis(),
        AlarmManager.INTERVAL_DAY,
        notificationIntent
    );
  }
}

代码示例来源：origin: hussien89aa/AndroidTutorialForBeginners

void LoadData(){
  MyTrackers.clear();
  PhoneNumber= ShredRef.getString("PhoneNumber","empty");
  String MyTrackersList= ShredRef.getString("MyTrackers","empty");
  if (!MyTrackersList.equals("empty")){
    String[] users=MyTrackersList.split("%");
    for (int i=0;i<users.length;i=i+2){
      MyTrackers.put(users[i],users[i+1]);
    }
  }
  if (PhoneNumber.equals("empty")){
    Intent intent=new Intent(context, Login.class);
    intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
    context.startActivity(intent);
  }
}

代码示例来源：origin: Swati4star/Images-to-PDF

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
  switch (requestCode) {
    case MODIFY_STORAGE_LOCATION_CODE:
      if (data.getExtras() != null) {
        String folderLocation = data.getExtras().getString("data") + "/";
        Log.i("folderLocation", folderLocation);
        mSharedPreferences.edit().putString(STORAGE_LOCATION, folderLocation).apply();
        showSnackbar(mActivity, R.string.storage_location_modified);
        storageLocation.setText(mSharedPreferences.getString(STORAGE_LOCATION,
            getDefaultStorageLocation()));
      }
      break;
  }
  super.onActivityResult(requestCode, resultCode, data);
}

代码示例来源：origin: scwang90/SmartRefreshLayout

public ClassicsHeader setLastUpdateTime(Date time) {
  final View thisView = this;
  mLastTime = time;
  mLastUpdateText.setText(mLastUpdateFormat.format(time));
  if (mShared != null && !thisView.isInEditMode()) {
    mShared.edit().putLong(KEY_LAST_UPDATE_TIME, time.getTime()).apply();
  }
  return this;
}

代码示例来源：origin: syncthing/syncthing-android

@Override
  protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if (requestCode == FolderPickerActivity.DIRECTORY_REQUEST_CODE && resultCode == RESULT_OK) {
      Folder selectedFolder = (Folder) mFoldersSpinner.getSelectedItem();
      String folderDirectory = Util.formatPath(selectedFolder.path);
      String subDirectory = data.getStringExtra(FolderPickerActivity.EXTRA_RESULT_DIRECTORY);
      //Remove the parent directory from the string, so it is only the Sub directory that is displayed to the user.
      subDirectory = subDirectory.replace(folderDirectory, "");
      mSubDirectoryTextView.setText(subDirectory);

      PreferenceManager.getDefaultSharedPreferences(this)
          .edit().putString(PREF_FOLDER_SAVED_SUBDIRECTORY + selectedFolder.id, subDirectory)
          .apply();
    }
  }
}

代码示例来源：origin: avjinder/Minimal-Todo

private void closeApp() {
    Intent i = new Intent(getContext(), MainActivity.class);
    i.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
//        i.putExtra(EXIT, true);
    SharedPreferences sharedPreferences = getActivity().getSharedPreferences(MainFragment.SHARED_PREF_DATA_SET_CHANGED, MODE_PRIVATE);
    SharedPreferences.Editor editor = sharedPreferences.edit();
    editor.putBoolean(EXIT, true);
    editor.apply();
    startActivity(i);

  }

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