安卓 setImageResource内置自定义ArrayAdapter。lang.NullPointerException

Question

所有代码工作正常：

public View getView(int position, View convertView, ViewGroup parent) {

    LayoutInflater inflater = (LayoutInflater) this.getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    View row = inflater.inflate(R.layout.activity_contacts_detail_row_layout, parent, false);
    ImageView smsLogo = (ImageView) row.findViewById(R.id.sms_logo);
    smsLogo.setClickable(true);
    smsLogo.setTag(position);
    if (contactsRow.isSMSApproved == true) smsLogo.setImageResource(R.drawable.messages_green);
    else smsLogo.setImageResource(R.drawable.messages_red);

在那一排之前：

smsLogo.setImageResource(....)

LogCat：

10-29 22:46:34.006: E/AndroidRuntime(935): java.lang.NullPointerException 10-29 22:46:34.006: E/AndroidRuntime(935): at com.callsfreecalls.安卓.ContactsDetailArrayAdapter.getView(ContactsDetailArrayAdapter.java:107) 10-29 22:46:34.006: E/AndroidRuntime(935): at 安卓.widget.AbsListView.obtainView(AbsListView.java:1409) 10-29 22:46:34.006: E/AndroidRuntime(935): at 安卓.widget.ListView.measureHeightOfChildren(ListView.java:1216) 10-29 22:46:34.006: E/AndroidRuntime(935): at 安卓.widget.ListView.onMeasure(ListView.java:1127) 10-29 22:46:34.006: E/AndroidRuntime(935): at 安卓.view.View.measure(View.java:8313) 10-29 22:46:34.006: E/AndroidRuntime(935): at 安卓.widget.RelativeLayout.measureChild(RelativeLayout.java:566) 10-29 22:46:34.006: E/AndroidRuntime(935): at 安卓.widget.RelativeLayout.onMeasure(RelativeLayout.java:381) 10-29 22:46:34.006: E/AndroidRuntime(935): at 安卓.view.View.measure(View.java:8313) 10-29 22:46:34.006: E/AndroidRuntime(935): at 安卓.view.ViewGroup.measureChildWithMargins(ViewGroup.java:3138) 10-29 22:46:34.006: E/AndroidRuntime(935): at 安卓.widget.FrameLayout.onMeasure(FrameLayout.java:250) 10-29 22:46:34.006: E/AndroidRuntime(935): at 安卓.view.View.measure(View.java:8313) 10-29 22:46:34.006: E/AndroidRuntime(935): at 安卓.view.ViewGroup.measureChildWithMargins(ViewGroup.java:3138) 10-29 22:46:34.006: E/AndroidRuntime(935): at 安卓.widget.FrameLayout.onMeasure(FrameLayout.java:250) 10-29 22:46:34.006: E/AndroidRuntime(935): at 安卓.view.View.measure(View.java:8313) 10-29 22:46:34.006: E/AndroidRuntime(935): at 安卓.view.ViewRoot.performTraversals(ViewRoot.java:839) 10-29 22:46:34.006: E/AndroidRuntime(935): at 安卓.view.ViewRoot.handleMessage(ViewRoot.java:1859) 10-29 22:46:34.006: E/AndroidRuntime(935): at 安卓.os.Handler.dispatchMessage(Handler.java:99) 10-29 22:46:34.006: E/AndroidRuntime(935): at 安卓.os.Looper.loop(Looper.java:130) 10-29 22:46:34.006: E/AndroidRuntime(935): at 安卓.app.ActivityThread.main(ActivityThread.java:3683) 10-29 22:46:34.006: E/AndroidRuntime(935): at java.lang.reflect.Method.invokeNative(Native Method) 10-29 22:46:34.006: E/AndroidRuntime(935): at java.lang.reflect.Method.invoke(Method.java:507) 10-29 22:46:34.006: E/AndroidRuntime(935): at com.安卓.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839) 10-29 22:46:34.006: E/AndroidRuntime(935): at com.安卓.internal.os.ZygoteInit.main(ZygoteInit.java:597)

行_布局：

<ImageView
    安卓:id="@+id/sms_logo"
    安卓:layout_width="60dp"
    安卓:layout_height="60dp"
    安卓:layout_marginRight="6dip"
    安卓:src="@drawable/messages_green" />

<ImageView
    安卓:id="@+id/callLogo"
    安卓:layout_width="60dp"
    安卓:layout_height="60dp"
    安卓:layout_marginLeft="60dp"
    安卓:layout_marginTop="-60dp"
    安卓:src="@drawable/callbuttonred" />

<TextView
    安卓:id="@+id/contactsDetailData"
    安卓:layout_width="fill_parent"
    安卓:layout_height="wrap_content"
    安卓:layout_marginLeft="120dp"
    安卓:layout_marginTop="-43dp"
    安卓:gravity="center"
    安卓:shadowColor="#FFFFFFFF"
    安卓:shadowDx="1"
    安卓:shadowDy="1"
    安卓:shadowRadius="1"
    安卓:text="+380674878717"
    安卓:textAppearance="?安卓:attr/textAppearanceLarge"
    安卓:textColor="#FF64396F" />

这是代码创建：

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_contacts_detail);
    bar = ((ProgressBar) findViewById(R.id.progressContactDetailsUpdate));
    bar.setVisibility(View.VISIBLE);

    contactsDetailsForUsing = this;
    adapterDetails = new ContactsDetailArrayAdapter(getApplicationContext(), R.layout.activity_contacts_detail_row_layout);
    lvContactDetails = (ListView) findViewById(R.id.listContactsDetailView);
    lvContactDetails.setAdapter(adapterDetails);

Answer 1

contactsRow。ISSMApproved-ISSMApproved为空。令我惊讶的是，原语必须用java初始化