我使用我的application.and片段我還添加了一個包到我的片段,但是當我想從包拿到添加字符串編譯器顯示我一個空指針錯誤,如如下如何從片段中獲取getArguments數據?
Process: com.softmaker.gazi_opu.personalhealthcare, PID: 3253
java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.lang.String.toString()' on a null object reference
at com.softmaker.gazi_opu.personalhealthcare.fragment.GeneralInformationFragment.setValue(GeneralInformationFragment.java:67)
at com.softmaker.gazi_opu.personalhealthcare.fragment.GeneralInformationFragment.onCreateView(GeneralInformationFragment.java:59)
at android.support.v4.app.Fragment.performCreateView(Fragment.java:1789)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:955)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1138)
at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:740)
at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1501)
at android.support.v4.app.FragmentManagerImpl$1.run(FragmentManager.java:458)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5254)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
而我添加的代碼,並獲得增加的數據代碼被賦予波紋管
public static GeneralInformationFragment getInstance(String profileID){
Bundle bundle = new Bundle();
bundle.putString("profileId",profileID);
GeneralInformationFragment generalFragment = new GeneralInformationFragment();
generalFragment.setArguments(bundle);
return generalFragment;
}
現在對於內onCreateMethod
String id = getArguments().getString("profileId");
Log.e("ID :", "" + id.toString());
充分利用這個片段數據
任何人都可以建議我。我在哪裏犯錯?
檢查配置文件ID值,它可以爲null – mdDroid
檢查getArguments()! = null在你的onCreateView你的代碼似乎很好 – Amir
也正如你可以在我的答案中看到它建議使用'final_statics_String'的靜態方法。 – Amir