これは私の SharedPreference クラスです:
public class MySharedPrefs {
private static final String APP_SHARED_PREFS = "com.astroved.Horawatch";
private SharedPreferences appSharedPrefs;
private Editor prefsEditor;
public MySharedPrefs(Context context)
{
this.appSharedPrefs = context.getSharedPreferences(APP_SHARED_PREFS, Activity.MODE_PRIVATE);
this.prefsEditor = appSharedPrefs.edit();
}
public String getPrefsValue(String value) {
return appSharedPrefs.getString(value, "");
}
public void savePrefsValue(String key , String Value) {
prefsEditor.putString(key, Value);
prefsEditor.commit();
}
public Boolean checkKey(String Key)
{
if(appSharedPrefs.contains(Key))
return true;
else
return false;
}
}
MyFunctionClass :
public class Functions_class extends Activity{
AstroVedTime tz,lat,lon;
TimeZone tz1;
protected MySharedPrefs appPrefs;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);{
appPrefs = new MySharedPrefs(Functions_class.this);
}
}
public void user_informations(int myear,int mMonth, int mDay){
int year = myear,month = mMonth+1,day = mDay;
Moment mn = new Moment(year,month,day,user_device_time());
//appPrefs = new MySharedPrefs(Functions_class.this);
if(appPrefs.checkKey("City_name1")){
TimeZone.setDefault(TimeZone.getTimeZone(appPrefs.getPrefsValue("selected_time_zone")));
Log.v("LOG_TAG"+"here the error is : ", appPrefs.getPrefsValue("selected_lat")+"");
Log.v("LOG_TAG", appPrefs.getPrefsValue("selected_longi")+"");
tz1 = TimeZone.getDefault();
lat = new AstroVedTime(Double.parseDouble(appPrefs.getPrefsValue("selected_lat")));// Latitude
lon = new AstroVedTime(Double.parseDouble(appPrefs.getPrefsValue("selected_longi")));// Longitude
}
これは私のlogcat
です:
08-10 14:07:14.947: E/AndroidRuntime(475): FATAL EXCEPTION: Thread-13
08-10 14:07:14.947: E/AndroidRuntime(475): java.lang.NullPointerException
08-10 14:07:14.947: E/AndroidRuntime(475): at com.astroved.horawatch.Functions_class.user_informations(Functions_class.java:46)
08-10 14:07:14.947: E/AndroidRuntime(475): at com.astroved.horawatch.HoraWatchActivity$13$1.run(HoraWatchActivity.java:1106)
08-10 14:07:16.628: E/WindowManager(475): Activity com.astroved.horawatch.HoraWatchActivity has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@407f1950 that was originally added here
08-10 14:07:16.628: E/WindowManager(475): android.view.WindowLeaked: Activity com.astroved.horawatch.HoraWatchActivity has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@407f1950 that was originally added here
08-10 14:07:16.628: E/WindowManager(475): at android.view.ViewRoot.<init>(ViewRoot.java:258)
08-10 14:07:16.628: E/WindowManager(475): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:148)
08-10 14:07:16.628: E/WindowManager(475): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:91)
08-10 14:07:16.628: E/WindowManager(475): at android.view.Window$LocalWindowManager.addView(Window.java:424)
08-10 14:07:16.628: E/WindowManager(475): at android.app.Dialog.show(Dialog.java:241)
08-10 14:07:16.628: E/WindowManager(475): at com.astroved.horawatch.HoraWatchActivity$13.onClick(HoraWatchActivity.java:1103)
08-10 14:07:16.628: E/WindowManager(475): at android.view.View.performClick(View.java:2485)
08-10 14:07:16.628: E/WindowManager(475): at android.view.View$PerformClick.run(View.java:9080)
08-10 14:07:16.628: E/WindowManager(475): at android.os.Handler.handleCallback(Handler.java:587)
08-10 14:07:16.628: E/WindowManager(475): at android.os.Handler.dispatchMessage(Handler.java:92)
08-10 14:07:16.628: E/WindowManager(475): at android.os.Looper.loop(Looper.java:123)
08-10 14:07:16.628: E/WindowManager(475): at android.app.ActivityThread.main(ActivityThread.java:3683)
08-10 14:07:16.628: E/WindowManager(475): at java.lang.reflect.Method.invokeNative(Native Method)
08-10 14:07:16.628: E/WindowManager(475): at java.lang.reflect.Method.invoke(Method.java:507)
08-10 14:07:16.628: E/WindowManager(475): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
08-10 14:07:16.628: E/WindowManager(475): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
08-10 14:07:16.628: E/WindowManager(475): at dalvik.system.NativeStart.main(Native Method)
上記のエラーが発生しています。値の呼び出しに間違いがありSharedPreference
ます。私はそれを理解することができません。以前はこのエラーが発生しました
at android.content.contextwrapper.getsharedpreferences contextwrapper.java 146
を呼び出して上記のエラーをクリアしSharedPreferences
ましたOnCreate
。上記のエラーをクリアするにはどうすればよいLogcat
ですか。どこが間違っていますか?
Anotherアクティビティのonclick中にMyFunctionClassのメソッドを呼び出しています。以下に示します
ホラウォッチ アクティビティ :
public Functions_class func_cls = new Functions_class();
private OnClickListener show_panchang_page = new OnClickListener(){
public void onClick(View v) {
pbarDialog = new ProgressDialog( HoraWatchActivity.this );
pbarDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
pbarDialog.setMessage("Loading Panchang...");
pbarDialog.show();
Thread t = new Thread(){
public void run(){
func_cls.user_informations(mYear, mMonth, mDay);
Message myMessage=new Message();
Bundle resBundle = new Bundle();
resBundle.putString("status", "SUCCESS");
myMessage.obj=resBundle;
handler.sendMessage(myMessage);
}
};
t.start();
}
};
より迅速な対応は私を大いに助けます.Thanks.