Question

我创建了一个对象，我希望能够在另一个Activity中使用，并尝试将其添加到intent中。我正在使用https://stackoverflow.com/a/7827593。

然而，当我运行该程序时，我收到“android.content.ActivityNotFoundException：无法找到显式活动类{com.deryck.helper / com.deryck.helper.SoupLog}的错误;您是否在您的活动中声明了此活动AndroidManifest.xml中？“

我是Android编程的新手，所以我不知道如何处理这个问题。我曾假设只有Activites需要在Manifest中。如果我确实需要添加它，我该怎么做或者我应该做什么来传递这个对象。我完全错了吗？

我的应用程序是一些页面，用于收集用户记录的时间和温度等不同信息。然后在结束时，信息用于显示何时需要采取其他步骤和其他结果。

我用

创建意图

Intent i = new Intent(MainActivity.this, SoupLog.class); i.putExtra("soupObj", soup); startActivity(i);

我的目标是这个

package com.deryck.helper;


import java.io.Serializable; 
import java.util.Calendar;

    public class SoupLog implements Serializable{
    private int lotNumber;
    private String soupType;
    private Calendar ProductionDate;
    private Calendar timeStart;
    private Calendar timeLethal;
    private Calendar lethalTemp;
    private String lethalMonInitials;
    private String lethalDOInitials;
    private Calendar packageStartTime;
    private int firstTemp;
    private int midTemp;
    private int nextLastTemp;
    private int lastTemp;
    private Calendar packDoneTime;
    private String lastMonInitials;
    private String lastDOInitials;

    public SoupLog(){
        Calendar calendar =  Calendar.getInstance();
        ProductionDate = calendar;
    }

    public SoupLog(int lotNumber, String soupType, Calendar calendar ){
        this.lotNumber = lotNumber;
        this.soupType = soupType;
        ProductionDate = calendar;

    }

    public int getLotNumber(){
        return lotNumber;
    }
    public void setlotNumber(int lotNumber){
        this.lotNumber= lotNumber;
    }

    public String getSoupType(){
        return soupType;
    }
    public void setSoupType(String soupType){
        this.soupType= soupType;
    }

    public void setProductionDate(int productionYear, int productionMonth, int ProductionDay){
        ProductionDate.set(productionYear, productionMonth, ProductionDay);
    }
    public Calendar getProductionDate(){
        return ProductionDate;
    }
    public void setStartTime(Calendar timeStart){
        this.timeStart = timeStart;
    }
    public Calendar getStartTime(){
        return timeStart;
    }
    public void setLethalTime(Calendar timeLethal ){
        this.timeLethal = timeLethal;
    }
    public Calendar getlethalTime(){
        return timeLethal;
    }

    public Calendar getLethalTemp() {
        return lethalTemp;
    }

    public void setLethalTemp(Calendar lethalTemp) {
        this.lethalTemp = lethalTemp;
    }

    public String getLethalMonInitials() {
        return lethalMonInitials;
    }

    public void setLethalMonInitials(String lethalMonInitials) {
        this.lethalMonInitials = lethalMonInitials;
    }

    public String getLethalDOInitials() {
        return lethalDOInitials;
    }

    public void setLethalDOInitials(String lethalDOInitials) {
        this.lethalDOInitials = lethalDOInitials;
    }

    public Calendar getPackageStartTime() {
        return packageStartTime;
    }

    public void setPackageStartTime(Calendar packageStartTime) {
        this.packageStartTime = packageStartTime;
    }

    public int getFirstTemp() {
        return firstTemp;
    }

    public void setFirstTemp(int firstTemp) {
        this.firstTemp = firstTemp;
    }

    public int getMidTemp() {
        return midTemp;
    }

    public void setMidTemp(int midTemp) {
        this.midTemp = midTemp;
    }

    public int getNextLastTemp() {
        return nextLastTemp;
    }

    public void setNextLastTemp(int nextLastTemp) {
        this.nextLastTemp = nextLastTemp;
    }

    public int getLastTemp() {
        return lastTemp;
    }

    public void setLastTemp(int lastTemp) {
        this.lastTemp = lastTemp;
    }

    public Calendar getPackDoneTime() {
        return packDoneTime;
    }

    public void setPackDoneTime(Calendar packDoneTime) {
        this.packDoneTime = packDoneTime;
    }

    public String getLastMonInitials() {
        return lastMonInitials;
    }

    public void setLastMonInitials(String lastMonInitials) {
        this.lastMonInitials = lastMonInitials;
    }

    public String getLastDOInitials() {
        return lastDOInitials;
    }

    public void setLastDOInitials(String lastDOInitials) {
        this.lastDOInitials = lastDOInitials;
    }
    //TODO find other times of interest
    public void get2hour(){
        //TODO  return timePackDone+2 hours
    }

}

我的宣言：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.deryck.helper"
android:versionCode="1"
android:versionName="1.0" >

<uses-sdk
    android:minSdkVersion="11"
    android:targetSdkVersion="21" />

<application
    android:allowBackup="true"
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >
    <activity
        android:name=".MainActivity"

        android:label="@string/app_name" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
    <activity android:name="Last">
        <intent-filter></intent-filter>
    </activity>
    <activity android:name="Lethality">
        <intent-filter>
        </intent-filter>
    </activity>
    <activity android:name="Middle">
        <intent-filter></intent-filter>
    </activity>
    <activity android:name="Packaging">
        <intent-filter></intent-filter>
    </activity>
    <activity android:name="Results">
        <intent-filter></intent-filter>
    </activity>
</application>

Answer 1

您需要向我们展示失败的代码以及AndroidManifest.xml。

从你到目前为止所写的内容，我可以看到你正在尝试使用活动“SoupLog”，而没有在AndroidManifest.xml中定义它。但是，是的，你是对的，只有活动需要在清单中。

将类添加到AndroidManifest

1 个答案: