我有一项不会开始的活动。
收到的错误是：
android.content.ActivityNotFoundException：无法找到显式活动类{com.example.its_time / com.example.its_time.actiongenre.ActioncomedyActivity};你有没有在AndroidManifest.xml中声明这个活动？
我已经检查过，活动是在清单文件中声明的。
为什么我的声明仍然会出现这个错误？
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.its_time"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="21" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".mainmenu.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=".mainmenu.NextactivityActivity"
android:label="@string/title_activity_nextactivity" >
</activity>
<activity
android:name=".mainmenu.Next100moviesActivity"
android:label="@string/title_activity_next100movies" >
</activity>
<activity
android:name=".mainmenu.NextTvSeriesActivity"
android:label="@string/title_activity_next_tv_series" >
</activity>
<activity
android:name=".top100list.Top100listActivity"
android:label="@string/title_activity_top100list" >
</activity>
<activity
android:name=".top100list.ThegodfatherActivity"
android:label="@string/title_activity_thegodfather" >
</activity>
<activity
android:name=".moviegenres.ActiongenreActivity"
android:label="@string/title_activity_actiongenre" >
</activity>
<activity
android:name=".moviegenres.ComedyActivity"
android:label="@string/title_activity_comedy" >
</activity>
<activity
android:name=".moviegenres.ScifiActivity"
android:label="@string/title_activity_scifi" >
</activity>
<activity
android:name=".moviegenres.AnimationActivity"
android:label="@string/title_activity_animation" >
</activity>
<activity
android:name=".moviegenres.DokumentaryActivity"
android:label="@string/title_activity_dokumentary" >
</activity>
<activity
android:name=".moviegenres.HorrorActivity"
android:label="@string/title_activity_horror" >
</activity>
<activity
android:name=".actiongenre.ScifiActivity"
android:label="@string/title_activity_scifi" >
</activity>
<activity
android:name=".moviegenres.Drama2Activity"
android:label="@string/title_activity_drama2" >
</activity>
<activity
android:name=".actiongenre.ActioncomedyActivity"
android:label="@string/title_activity_actioncomedy" >
</activity>
<activity
android:name=".actiongenre.AdventureActivity"
android:label="@string/title_activity_adventure" >
</activity>
<activity
android:name=".actiongenre.WesternActivity"
android:label="@string/title_activity_western" >
</activity>
<activity
android:name=".actiongenre.ActiondramaActivity"
android:label="@string/title_activity_actiondrama" >
</activity>
<activity
android:name=".actiongenre.ActionthrillerActivity"
android:label="@string/title_activity_actionthriller" >
</activity>
<activity
android:name=".actiongenre.ActionfantaasyActivity"
android:label="@string/title_activity_actionfantaasy" >
</activity>
<activity
android:name=".animationgenres.AnimationActionActivity"
android:label="@string/title_activity_animation_action" >
</activity>
<activity
android:name=".animationgenres.AnimadventureActivity"
android:label="@string/title_activity_animadventure" >
</activity>
<activity
android:name=".animationgenres.AnimcomedyActivity"
android:label="@string/title_activity_animcomedy" >
</activity>
<activity
android:name=".animationgenres.AnimdramaActivity"
android:label="@string/title_activity_animdrama" >
</activity>
<activity
android:name="comedygenres.ComedyromanceActivity"
android:label="@string/title_activity_comedyromance" >
</activity>
<activity
android:name="ancomedygenres.ComedydramaActivityramaActivity"
android:label="@string/title_activity_comedydrama" >
</activity>
<activity
android:name="comedygenres.ComedyactionActivitye.ComedyactionActivity"
android:label="@string/title_activity_comedyaction" >
</activity>
<activity
android:name="comedygenres.ComedycomedyActivitye.ComedycomedyActivity"
android:label="@string/title_activity_comedycomedy" >
</activity>
<activity
android:name=".documentarysubgenres.DocumentaryWarActivity"
android:label="@string/title_activity_documentary_war" >
</activity>
<activity
android:name=".documentarysubgenres.DocumentaryBiografiActivity"
android:label="@string/title_activity_documentary_biografi" >
</activity>
<activity
android:name=".DocumentaryMusikActivity"
android:label="@string/title_activity_documentary_musik" >
</activity>
<activity
android:name=".DocumentarySportActivity"
android:label="andcom.example.its_time.documentarysubgenres.DocumentaryNatureActivityactivity_documentary_sport" >
</activity>
<activity
android:name=".Doccom.example.its_time.documentarysubgenres.DocumentaryHistoryActivity"
android:label="@string/title_activity_documentary_nature" >
</activity>
<activity
android:name=".DocumentaryHistoryActivity"
android:label="androcom.example.its_time.documentarysubgenres.DocumentaryDramaActivityctivity_documentary_history" >
</activity>
<activity
android:name=".DocumentaryDramaActivity"
android:label="@string/title_activity_documentary_drama" >
</activity>
<activity
android:name=".documentarysubgenres.DocumentaryCultureAndPoliticsActivity"
android:label="@string/title_activity_documentary_culture_and_politics" >
</activity>
<activity
android:name=".DocumentaryBrottActivity"
android:label="@string/title_activity_documentary_brott" >
</activity>
<activity
android:name=".horrorsubgenres.HorrorThrillerActivity"
android:label="@string/title_activity_horror_thriller" >
</activity>
<activity
android:name=".HorrorHorrorActivity"
android:label="@string/title_activity_horror_horror" >
</activity>
<activity
android:name=".horrorsubgenres.HorrorScifiActivity"
android:label="@string/title_activity_horror_scifi" >
</activity>
<activity
android:name=".ScifiDramaActivity"
android:label="@string/title_activity_scifi_drama" >
</activity>
<activity
android:name=".ScifiThrillerActivity"
android:label="@string/title_activity_scifi_thriller" >
</activity>
<activity
android:name=".ScifiAdventureActivity"
android:label="@string/title_activity_scifi_adventure" >
</activity>
<activity
android:name=".ScifiActionActivity"
android:label="@string/title_activity_scifi_action" >
</activity>
<activity
android:name=".ScifiHorrorActivity"
android:label="@string/title_activity_scifi_horror" >
</activity>
<activity
android:name=".DramaSportActivity"
android:label="@string/title_activity_drama_sport" >
</activity>
<activity
android:name=".DramaComedyActivity"
android:label="@string/title_activity_drama_comedy" >
</activity>
<activity
android:name=".DramaAdventureActivity"
android:label="@string/title_activity_drama_adventure" >
</activity>
<activity
android:name=".DramaActionActivity"
android:label="@string/title_activity_drama_action" >
</activity>
<activity
android:name=".DramaDramaActivity"
android:label="@string/title_activity_drama_drama" >
</activity>
<activity
android:name=".DramaRomantikActivity"
android:label="@string/title_activity_drama_romantik" >
</activity>
<activity
android:name=".DramaThrillerActivity"
android:label="@string/title_activity_drama_thriller" >
</activity>
</application>
</manifest>
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.nextactivity);
pupulateListView();
registerClickCallback();
}
private void registerClickCallback() {
ListView list = (ListView)findViewById(R.id.listViewGenres);
list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
Intent intent;
switch(position)
{
case 0:
intent = new Intent(NextactivityActivity.this,ActiongenreActivity.class);
startActivity(intent);
break;
case 1:
intent = new Intent(NextactivityActivity.this,AnimationActivity.class);
startActivity(intent);
break;
case 2:
intent = new Intent(NextactivityActivity.this,ComedyActivity.class);
startActivity(intent);
break;
case 3:
intent = new Intent(NextactivityActivity.this,DokumentaryActivity.class);
startActivity(intent);
break;
case 4:
intent = new Intent(NextactivityActivity.this,HorrorActivity.class);
startActivity(intent);
break;
case 5:
intent = new Intent(NextactivityActivity.this,ScifiActivity.class);
startActivity(intent);
break;
case 6:
intent = new Intent(NextactivityActivity.this,Drama2Activity.class);
startActivity(intent);
break;
default:
break;
}
}
});
}
private void pupulateListView() {
String[] myItems = {"Action","Animation","Komedi","Dokumentär","Skräck","Sci-fi","Drama"};
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,R.layout.the_list_genres,myItems);
ListView list = (ListView)findViewById(R.id.listViewGenres);
list.setAdapter(adapter);
}
}
这是第一段带我进入下一步的代码，这个过程有效
这是下一步的代码，它将带我进入第三步：
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.actiongenre);
populateListView();
registerClickCallback();
}
private void registerClickCallback() {
ListView list = (ListView)findViewById(R.id.listViewActionSubgenres);
list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
Intent intent;
switch(position)
{
case 0:
intent = new Intent(ActiongenreActivity.this,Actioncomedyactivity.class);
startActivity(intent);
break;
case 1:
intent = new Intent(ActiongenreActivity.this,Actionadventureactivity.class);
startActivity(intent);
break;
case 2:
intent = new Intent(ActiongenreActivity.this,ActionWesternActivity.class);
startActivity(intent);
break;
case 3:
intent = new Intent(ActiongenreActivity.this,ActiondramaActivity.class);
startActivity(intent);
break;
case 4:
intent = new Intent(ActiongenreActivity.this,ActionthrillerActivity.class);
startActivity(intent);
break;
case 5:
intent = new Intent(ActiongenreActivity.this,ActionfantaasyActivity.class);
startActivity(intent);
break;
default:
break;
}
}
});
}
private void populateListView() {
String[] myItems = {"Komedi","Äventyr","Western","Drama","Thriller","Fantasi"};
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,R.layout.the_list,myItems);
ListView list = (ListView)findViewById(R.id.listViewActionSubgenres);
list.setAdapter(adapter);
}
}
但它的第三步不起作用，你可以看到第一步的代码 过程几乎与第二个相同
答案 0 :(得分：1)
只需替换此
android:name=".actiongenre.ActioncomedyActivity"
将完整的包名称包含在ActionComedyActivity中，如下所示
android:name="youCompletePackageName.Actioncomedyactivity"
答案 1 :(得分：0)
当代码Actioncomedyactivity时，您的代码为ActioncomedyActivity。 a与A有关。