实现StartApp Sdk后出错

Question

我刚刚在我的应用程序中实现了StartApp SDK来提供add，但它给出了如下错误。崩溃报告中显示错误。请帮助删除错误并避免崩溃

请参阅下面的崩溃报告

Exception java.lang.NullPointerException: Attempt to invoke interface methodjava.util.Iterator java.util.List.iterator()' on a null object reference
com.startapp.android.publish.j.c.a ()
com.startapp.android.publish.j.c.a ()
com.startapp.android.publish.g.c.a ()
com.startapp.android.publish.g.d.d ()
com.startapp.android.publish.g.d$1.run ()
java.lang.Thread.run (Thread.java:818)

这是我的Java文件

package sujaynambiar.textilecalculation;

import android.app.Dialog;
import android.content.Context;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.view.Window;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.Toast;

import com.startapp.android.publish.StartAppAd;
import com.startapp.android.publish.StartAppSDK;

import java.text.NumberFormat;
import java.util.ArrayList;
import java.util.List;

public class ComberTotalDraftDrafting extends AppCompatActivity {
    EditText inputBattTension, inputFeedAmount, inputNoil, inputBattWeight, inputSliverHank;
    TextView answer;
    Spinner spinner;
    Button calculate, buttonFormula;
    final Context context = this;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        StartAppSDK.init(this, "210963358", true);
        StartAppAd.disableSplash();
        setContentView(R.layout.activity_comber_total_draft_drafting);
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
        getSupportActionBar().setHomeButtonEnabled(true);
        inputBattTension = (EditText) findViewById(R.id.inputBattTensionComberTotalDraft);
        inputBattTension.addTextChangedListener(new NumberTextWatcherForThousand(inputBattTension));
        inputBattWeight = (EditText) findViewById(R.id.inputBattweightComberTotalDraft);
        inputBattWeight.addTextChangedListener(new NumberTextWatcherForThousand(inputBattWeight));
        inputNoil = (EditText) findViewById(R.id.inputNoilBComberTotalDraft);
        inputNoil.addTextChangedListener(new NumberTextWatcherForThousand(inputNoil));
        inputFeedAmount = (EditText) findViewById(R.id.inputFeedAmountComberTotalDraft);
        inputFeedAmount.addTextChangedListener(new NumberTextWatcherForThousand(inputFeedAmount));
        inputSliverHank = (EditText) findViewById(R.id.inputSliverHankComberTotalDrfat);
        inputSliverHank.addTextChangedListener(new NumberTextWatcherForThousand(inputSliverHank));
        answer = (TextView) findViewById(R.id.answerComberTotalDraft);
        calculate = (Button) findViewById(R.id.calculateComberTotalDraft);
        spinner = (Spinner) findViewById(R.id.spinnerSelectCountUnit);
        List<String> list1 = new ArrayList<String>();
        list1.add("Ne");
        list1.add("kTex");
        ArrayAdapter<String> dataAdapter1 = new ArrayAdapter<String>(this,
                R.layout.custom_simple_spinner, list1);
        dataAdapter1.setDropDownViewResource(R.layout.custom_spinner_dropdown);
        spinner.setAdapter(dataAdapter1);
        calculate.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                int index = spinner.getSelectedItemPosition();
                double value1 = 0;
                double value2 = 0;
                double value3 = 0;
                double value4 = 0;
                double value5 = 0;
                if (inputBattTension.getText().toString().isEmpty() ||
                        inputFeedAmount.getText().toString().isEmpty() ||
                        inputNoil.getText().toString().isEmpty() || inputBattWeight.getText().toString().isEmpty()
                        || inputSliverHank.getText().toString().isEmpty())
                    Toast.makeText(getApplicationContext(), getResources().getString(R.string.toastmessage3),
                            Toast.LENGTH_LONG).show();
                else {
                    value1 = Double.parseDouble(inputBattTension.getText().toString().replaceAll(",", ""));
                    value2 = Double.parseDouble(inputFeedAmount.getText().toString().replaceAll(",", ""));
                    value3 = Double.parseDouble(inputNoil.getText().toString().replaceAll(",", ""));
                    value4 = Double.parseDouble(inputBattWeight.getText().toString().replaceAll(",", ""));
                    value5 = Double.parseDouble(inputSliverHank.getText().toString().replaceAll(",", ""));
                }
                if (index == 0) {
                    double answer1 = 0;
                    answer1 = (0.417 * value2 * value4 * ((100 - value1) / 100) * ((100 - value3) / 100) * value5);
                    NumberFormat formatter = NumberFormat.getNumberInstance();
                    formatter.setMinimumFractionDigits(2);
                    formatter.setMaximumFractionDigits(2);
                    answer.setText(formatter.format(answer1) + " ");
                }
                if (index == 1) {
                    double answer2 = 0;
                    answer2 = (((0.245 / value5) * value2 * value4 * ((100 - value1) / 100) * ((100 - value3) / 100)));
                    NumberFormat formatter = NumberFormat.getNumberInstance();
                    formatter.setMinimumFractionDigits(2);
                    formatter.setMaximumFractionDigits(2);
                    answer.setText(formatter.format(answer2) + " ");
                }
            }
        });
        buttonFormula = (Button) findViewById(R.id.formulaComberTotalDraft);
        buttonFormula.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View arg0) {
                final Dialog dialog = new Dialog(context);
                dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
                dialog.setContentView(R.layout.layout_formula);
                TextView title = (TextView) dialog.findViewById(R.id.title);
                title.setText(R.string.ComberTotalDraftCalculation);
                ImageView image = (ImageView) dialog.findViewById(R.id.test_image);
                image.setImageResource(R.drawable.combertotaldraftne);
                ImageView image1 = (ImageView) dialog.findViewById(R.id.test_image1);
                image1.setImageResource(R.drawable.combertotaldraftktex);
                TextView text = (TextView) dialog.findViewById(R.id.text);
                text.setText(R.string.Formula_ComberTotalDraftCalculation);
                Button dialogButton = (Button) dialog.findViewById(R.id.dialogButtonOK);
                dialogButton.setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View v) {
                        dialog.dismiss();
                    }
                });
                dialog.show();
            }
        });
    }
    @Override
    public void onBackPressed() {
        StartAppAd.onBackPressed(this);
        super.onBackPressed();
    }
}

XML文件

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/layoutbackgroundcolor">
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_above="@+id/startAppBanner"
    android:fillViewport="true">

    <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        xmlns:tools="http://schemas.android.com/tools"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@color/layoutbackgroundcolor"
        app:layout_behavior="@string/appbar_scrolling_view_behavior"
        tools:context="sujaynambiar.paid.ComberTotalDraftDrafting"
        tools:showIn="@layout/activity_comber_total_draft_drafting">

        <View
            android:id="@+id/dot"
            android:layout_width="fill_parent"
            android:layout_height="3dp"
            android:layout_marginBottom="@dimen/separator_textview"
            android:layout_marginTop="@dimen/FirstViewMarginTop"
            android:background="@drawable/separator"
            android:layerType="software" />

        <LinearLayout
            android:id="@+id/RL1"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_below="@+id/dot"
            android:layout_marginBottom="@dimen/gap_for_all"
            android:orientation="horizontal"
            android:weightSum="3">

            <TextView
                android:id="@+id/textView14"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:layout_marginEnd="@dimen/padding_left"
                android:layout_marginLeft="@dimen/padding_left"
                android:layout_marginRight="@dimen/padding_right"
                android:layout_marginStart="@dimen/padding_right"
                android:layout_weight="1.25"
                android:text="@string/showtext52"
                android:textColor="@color/textviewtextcolor"
                android:textSize="@dimen/TextViewSize" />

            <EditText
                android:id="@+id/inputBattTensionComberTotalDraft"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:layout_marginEnd="@dimen/padding_left"
                android:layout_marginLeft="@dimen/padding_left"
                android:layout_marginRight="@dimen/padding_right"
                android:layout_marginStart="@dimen/padding_right"
                android:layout_weight="1.75"
                android:ems="10"
                android:gravity="center"
                android:inputType="numberDecimal" />
        </LinearLayout>

        <View
            android:id="@+id/dot1"
            android:layout_width="fill_parent"
            android:layout_height="3dp"
            android:layout_below="@+id/RL1"
            android:layout_marginBottom="@dimen/separator_textview"
            android:background="@drawable/separator"
            android:layerType="software" />

        <LinearLayout
            android:id="@+id/RL2"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_below="@+id/dot1"
            android:layout_marginBottom="@dimen/gap_for_all"
            android:orientation="horizontal"
            android:weightSum="3">

            <TextView
                android:id="@+id/textView15"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:layout_marginEnd="@dimen/padding_left"
                android:layout_marginLeft="@dimen/padding_left"
                android:layout_marginRight="@dimen/padding_right"
                android:layout_marginStart="@dimen/padding_right"
                android:layout_weight="1.25"
                android:text="@string/showtext51"
                android:textColor="@color/textviewtextcolor"
                android:textSize="@dimen/TextViewSize" />

            <EditText
                android:id="@+id/inputBattweightComberTotalDraft"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:layout_marginEnd="@dimen/padding_left"
                android:layout_marginLeft="@dimen/padding_left"
                android:layout_marginRight="@dimen/padding_right"
                android:layout_marginStart="@dimen/padding_right"
                android:layout_weight="1.75"
                android:ems="10"
                android:gravity="center"
                android:inputType="numberDecimal" />
        </LinearLayout>

        <View
            android:id="@+id/dot2"
            android:layout_width="fill_parent"
            android:layout_height="3dp"
            android:layout_below="@+id/RL2"
            android:layout_marginBottom="@dimen/separator_textview"
            android:background="@drawable/separator"
            android:layerType="software" />

        <LinearLayout
            android:id="@+id/RL3"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_below="@+id/dot2"
            android:layout_marginBottom="@dimen/gap_for_all"
            android:orientation="horizontal"
            android:weightSum="3">

            <TextView
                android:id="@+id/textView16"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:layout_marginEnd="@dimen/padding_left"
                android:layout_marginLeft="@dimen/padding_left"
                android:layout_marginRight="@dimen/padding_right"
                android:layout_marginStart="@dimen/padding_right"
                android:layout_weight="1.25"
                android:text="@string/showtext50"
                android:textColor="@color/textviewtextcolor"
                android:textSize="@dimen/TextViewSize" />

            <EditText
                android:id="@+id/inputNoilBComberTotalDraft"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:layout_marginEnd="@dimen/padding_left"
                android:layout_marginLeft="@dimen/padding_left"
                android:layout_marginRight="@dimen/padding_right"
                android:layout_marginStart="@dimen/padding_right"
                android:layout_weight="1.75"
                android:ems="10"
                android:gravity="center"
                android:inputType="numberDecimal" />
        </LinearLayout>

        <View
            android:id="@+id/dot5"
            android:layout_width="fill_parent"
            android:layout_height="3dp"
            android:layout_below="@+id/RL3"
            android:layout_marginBottom="@dimen/separator_button"
            android:background="@drawable/separator"
            android:layerType="software" />

        <LinearLayout
            android:id="@+id/RL4"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_below="@+id/dot5"
            android:layout_marginBottom="@dimen/gap_for_all"
            android:orientation="horizontal"
            android:weightSum="3">

            <TextView
                android:id="@+id/textView17"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:layout_marginEnd="@dimen/padding_left"
                android:layout_marginLeft="@dimen/padding_left"
                android:layout_marginRight="@dimen/padding_right"
                android:layout_marginStart="@dimen/padding_right"
                android:layout_weight="1.25"
                android:text="@string/showtext49"
                android:textColor="@color/textviewtextcolor"
                android:textSize="@dimen/TextViewSize" />

            <EditText
                android:id="@+id/inputFeedAmountComberTotalDraft"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:layout_marginEnd="@dimen/padding_left"
                android:layout_marginLeft="@dimen/padding_left"
                android:layout_marginRight="@dimen/padding_right"
                android:layout_marginStart="@dimen/padding_right"
                android:layout_weight="1.75"
                android:ems="10"
                android:gravity="center"
                android:inputType="numberDecimal" />
        </LinearLayout>

        <View
            android:id="@+id/dot6"
            android:layout_width="fill_parent"
            android:layout_height="3dp"
            android:layout_below="@+id/RL4"
            android:layout_marginBottom="@dimen/separator_textview"
            android:background="@drawable/separator"
            android:layerType="software" />

        <TextView
            android:id="@+id/textView18"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_below="@+id/dot6"
            android:layout_marginBottom="@dimen/TextView_Spinner"
            android:layout_marginEnd="@dimen/padding_left"
            android:layout_marginLeft="@dimen/padding_left"
            android:layout_marginRight="@dimen/padding_right"
            android:layout_marginStart="@dimen/padding_right"
            android:text="@string/showtext43"
            android:textColor="@color/textviewtextcolor"
            android:textSize="@dimen/TextViewSize" />

        <TextView
            android:id="@+id/textView11"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_below="@+id/textView18"
            android:layout_marginBottom="@dimen/TextView_Spinner"
            android:layout_marginEnd="@dimen/padding_left"
            android:layout_marginLeft="@dimen/padding_left"
            android:layout_marginRight="@dimen/padding_right"
            android:layout_marginStart="@dimen/padding_right"
            android:text="@string/showtext30a"
            android:textColor="@color/textviewtextcolor"
            android:textSize="@dimen/TextViewSize" />

        <LinearLayout
            android:id="@+id/RL5"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_below="@+id/textView11"
            android:layout_marginBottom="@dimen/gap_for_all"
            android:orientation="horizontal"
            android:weightSum="3">

            <Spinner
                android:id="@+id/spinnerSelectCountUnit"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:layout_marginEnd="@dimen/padding_left"
                android:layout_marginLeft="@dimen/padding_left"
                android:layout_marginRight="@dimen/padding_right"
                android:layout_marginStart="@dimen/padding_right"
                android:layout_weight="1.25"
                android:gravity="center"
                android:spinnerMode="dialog" />

            <EditText
                android:id="@+id/inputSliverHankComberTotalDrfat"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:layout_marginEnd="@dimen/padding_left"
                android:layout_marginLeft="@dimen/padding_left"
                android:layout_marginRight="@dimen/padding_right"
                android:layout_marginStart="@dimen/padding_right"
                android:layout_weight="1.75"
                android:ems="10"
                android:gravity="center"
                android:inputType="numberDecimal" />
        </LinearLayout>

        <View
            android:id="@+id/dot7"
            android:layout_width="fill_parent"
            android:layout_height="3dp"
            android:layout_below="@+id/RL5"
            android:layout_marginBottom="@dimen/separator_button"
            android:background="@drawable/separator"
            android:layerType="software" />

        <Button
            android:id="@+id/calculateComberTotalDraft"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_below="@+id/dot7"
            android:layout_marginBottom="@dimen/button_separator"
            android:layout_marginEnd="@dimen/padding_left"
            android:layout_marginLeft="@dimen/padding_left"
            android:layout_marginRight="@dimen/padding_right"
            android:layout_marginStart="@dimen/padding_right"
            android:background="@drawable/button_background"
            android:text="@string/calculate"
            android:textColor="@color/buttontextcolor"
            android:textSize="@dimen/ButtonText" />

        <View
            android:id="@+id/dot8"
            android:layout_width="fill_parent"
            android:layout_height="3dp"
            android:layout_below="@+id/calculateComberTotalDraft"
            android:layout_marginBottom="@dimen/separator_answer"
            android:background="@drawable/separator"
            android:layerType="software" />

        <TextView
            android:id="@+id/answerComberTotalDraft"
            android:layout_width="match_parent"
            android:layout_height="@dimen/answerViewSize"
            android:layout_below="@+id/dot8"
            android:layout_marginBottom="@dimen/answerview_separator"
            android:layout_marginEnd="@dimen/padding_left"
            android:layout_marginLeft="@dimen/padding_left"
            android:layout_marginRight="@dimen/padding_right"
            android:layout_marginStart="@dimen/padding_right"
            android:gravity="center"
            android:text="@string/answer"
            android:textColor="@color/textviewtextcolor"
            android:textSize="@dimen/AnswerView" />

        <View
            android:id="@+id/dot10"
            android:layout_width="fill_parent"
            android:layout_height="3dp"
            android:layout_below="@+id/answerComberTotalDraft"
            android:layout_marginBottom="@dimen/separator_button"
            android:background="@drawable/separator"
            android:layerType="software" />

        <Button
            android:id="@+id/formulaComberTotalDraft"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_below="@+id/dot10"
            android:layout_marginBottom="@dimen/button_separator"
            android:layout_marginEnd="@dimen/padding_left"
            android:layout_marginLeft="@dimen/padding_left"
            android:layout_marginRight="@dimen/padding_right"
            android:layout_marginStart="@dimen/padding_right"
            android:background="@drawable/button_background"
            android:text="@string/formula"
            android:textColor="@color/buttontextcolor"
            android:textSize="@dimen/ButtonText" />

        <View
            android:id="@+id/dot9"
            android:layout_width="fill_parent"
            android:layout_height="3dp"
            android:layout_below="@+id/formulaComberTotalDraft"
            android:layout_marginBottom="@dimen/separator_textview"
            android:background="@drawable/separator"
            android:layerType="software" />

    </RelativeLayout>
</ScrollView>
    <com.startapp.android.publish.banner.Banner
        android:id="@+id/startAppBanner"
        android:layout_width="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"/>
</RelativeLayout>