Java 即使在清单中声明了“未找到活动”异常
这是我的logcat文件,它显示了activity not found exception,尽管我已经在清单文件中声明了它。每当我在eclipse avd中启动我的应用程序时,不幸的是,就会弹出警告。请帮我做这个Java 即使在清单中声明了“未找到活动”异常,java,android,eclipse,thread-safety,avd,Java,Android,Eclipse,Thread Safety,Avd,这是我的logcat文件,它显示了activity not found exception,尽管我已经在清单文件中声明了它。每当我在eclipse avd中启动我的应用程序时,不幸的是,就会弹出警告。请帮我做这个 12-15 07:42:47.833: E/AndroidRuntime(770): FATAL EXCEPTION: Thread-75 12-15 07:42:47.833: E/AndroidRuntime(770): android.content.ActivityNotFou
12-15 07:42:47.833: E/AndroidRuntime(770): FATAL EXCEPTION: Thread-75
12-15 07:42:47.833: E/AndroidRuntime(770): android.content.ActivityNotFoundException: No Activity found to handle Intent { act=my.example.myproject.SELECTION }
12-15 07:42:47.833: E/AndroidRuntime(770): at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1622)
12-15 07:42:47.833: E/AndroidRuntime(770): at android.app.Instrumentation.execStartActivity(Instrumentation.java:1417)
12-15 07:42:47.833: E/AndroidRuntime(770): at android.app.Activity.startActivityForResult(Activity.java:3370)
12-15 07:42:47.833: E/AndroidRuntime(770): at android.app.Activity.startActivityForResult(Activity.java:3331)
12-15 07:42:47.833: E/AndroidRuntime(770): at android.app.Activity.startActivity(Activity.java:3566)
12-15 07:42:47.833: E/AndroidRuntime(770): at android.app.Activity.startActivity(Activity.java:3534)
12-15 07:42:47.833: E/AndroidRuntime(770): at my.example.myproject.FullscreenActivity$3.run(FullscreenActivity.java:72)
Java代码和清单文件如下所示
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_fullscreen);
final View controlsView = findViewById(R.id.fullscreen_content_controls);
final View contentView = findViewById(R.id.fullscreen_content);
iol = (Button)findViewById(R.id.iolCalculation);
help = (Button)findViewById(R.id.sHelp);
about = (Button)findViewById(R.id.sAbout);
Thread iolthread=new Thread(){
public void run(){
try{
iol.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
setContentView(R.layout.selection);
}
});
Intent iolIntent=new Intent("my.example.myproject.SELECTION");
startActivity(iolIntent);
}
finally{
finish();
}
}
};
iolthread.start();
清单文件
我是android编程和堆栈溢出的初学者。如果有什么错误,请告诉我。
下面是我的主要xml文件
<FrameLayout 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:background="@color/black"
tools:context=".FullscreenActivity" >
<!--
The primary full-screen view. This can be replaced with whatever view
is needed to present your content, e.g. VideoView, SurfaceView,
TextureView, etc.
-->
<TextView
android:id="@+id/fullscreen_content"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:keepScreenOn="true"/>
<!--
This FrameLayout insets its children based on system windows using
android:fitsSystemWindows.
-->
<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/Black"
android:fitsSystemWindows="true" >
<LinearLayout
android:id="@+id/fullscreen_content_controls"
style="?buttonBarStyle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom|center_horizontal"
android:background="@color/black_overlay"
android:orientation="horizontal"
tools:ignore="UselessParent" >
</LinearLayout>
<Button
style="@style/ButtonBarButton"
android:layout_width="222dp"
android:layout_height="62dp"
android:layout_marginLeft="45dp"
android:layout_marginTop="75dp"
android:background="@color/black"
android:paddingLeft="20dp"
android:id="@+id/iolCalculation"
android:text="@string/Button"
android:textColor="@color/WhiteSmoke"
android:textStyle="bold" />
<Button
style="@style/ButtonBarButton"
android:layout_width="222dp"
android:layout_height="62dp"
android:layout_marginLeft="45dp"
android:id="@+id/sHelp"
android:layout_marginTop="139dp"
android:background="@color/Black"
android:gravity="center"
android:paddingLeft="10dp"
android:text="@string/Button1"
android:textColor="@color/WhiteSmoke"
android:textStyle="bold" />
<Button
style="@style/ButtonBarButton"
android:layout_width="222dp"
android:layout_height="62dp"
android:id="@+id/sAbout"
android:layout_marginLeft="45dp"
android:layout_marginTop="203dp"
android:background="@color/Black"
android:paddingLeft="10dp"
android:text="@string/Button2"
android:textColor="@color/WhiteSmoke"
android:textStyle="bold" >
</Button>
</FrameLayout>
</FrameLayout>
看起来您忘记将意图过滤器标记添加到第二个活动。尝试以下清单更改
<activity
android:name=".Selection"
android:configChanges="orientation|keyboardHidden|screenSize"
android:label="@string/app_name"
android:theme="@style/FullscreenTheme" >
<intent-filter>
<action android:name="my.example.myproject.SELECTION" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
看起来您忘记将意图过滤器标记添加到第二个活动。尝试以下清单更改
<activity
android:name=".Selection"
android:configChanges="orientation|keyboardHidden|screenSize"
android:label="@string/app_name"
android:theme="@style/FullscreenTheme" >
<intent-filter>
<action android:name="my.example.myproject.SELECTION" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
写下面的代码
Intent mInSelection=new Intent(MainActivity.this,Selection.class);
startActivity(mInSelection);
而不是
Intent iolIntent=new Intent("my.example.myproject.SELECTION");
startActivity(iolIntent);
<activity
android:name=".Selection"
android:configChanges="orientation|keyboardHidden|screenSize"
android:label="@string/app_name"
android:theme="@style/FullscreenTheme" >
<action android:name="my.example.myproject.SELECTION" />
<category android:name="android.intent.category.DEFAULT" />
</activity>
并将以下代码写入manifest.xml文件
<activity
android:name=".Selection"
android:configChanges="orientation|keyboardHidden|screenSize"
android:label="@string/app_name"
android:theme="@style/FullscreenTheme" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
而不是
Intent iolIntent=new Intent("my.example.myproject.SELECTION");
startActivity(iolIntent);
<activity
android:name=".Selection"
android:configChanges="orientation|keyboardHidden|screenSize"
android:label="@string/app_name"
android:theme="@style/FullscreenTheme" >
<action android:name="my.example.myproject.SELECTION" />
<category android:name="android.intent.category.DEFAULT" />
</activity>
它会解决你的问题。写下下面的代码
Intent mInSelection=new Intent(MainActivity.this,Selection.class);
startActivity(mInSelection);
而不是
Intent iolIntent=new Intent("my.example.myproject.SELECTION");
startActivity(iolIntent);
<activity
android:name=".Selection"
android:configChanges="orientation|keyboardHidden|screenSize"
android:label="@string/app_name"
android:theme="@style/FullscreenTheme" >
<action android:name="my.example.myproject.SELECTION" />
<category android:name="android.intent.category.DEFAULT" />
</activity>
并将以下代码写入manifest.xml文件
<activity
android:name=".Selection"
android:configChanges="orientation|keyboardHidden|screenSize"
android:label="@string/app_name"
android:theme="@style/FullscreenTheme" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
而不是
Intent iolIntent=new Intent("my.example.myproject.SELECTION");
startActivity(iolIntent);
<activity
android:name=".Selection"
android:configChanges="orientation|keyboardHidden|screenSize"
android:label="@string/app_name"
android:theme="@style/FullscreenTheme" >
<action android:name="my.example.myproject.SELECTION" />
<category android:name="android.intent.category.DEFAULT" />
</activity>
这会解决你的问题。我知道我迟到了,但它可以帮助别人。 再加上这个
Intent mInSelection=new Intent(MainActivity.this,my.example.myproject.SELECTION.class);
startActivity(mInSelection);
这肯定会对你有帮助。我知道我迟到了,但它可以帮助别人。 再加上这个
Intent mInSelection=new Intent(MainActivity.this,my.example.myproject.SELECTION.class);
startActivity(mInSelection);
这肯定会对你有所帮助。这两项活动都在同一个包中。@SahilMahajanMj是的,一切都在同一个包中package@AhamBrahmaasmi:那么迪帕克的回答很可能解决您的问题。@Dipakkesharya用我的主xml文件更新了这个问题。请帮忙。从过去两天开始尝试。@AhamBrahmaasmi将调用意图代码写入处理程序并尝试。这两个活动是否在同一个包中?@SahilMahajanMj是的,所有内容都在同一个包中package@AhamBrahmaasmi:那么迪帕克的回答很可能解决您的问题。@Dipakkesharya用我的主xml文件更新了这个问题。请帮忙。从过去两天开始尝试。@AhamBrahmaasmi将调用意图代码写入处理程序并尝试。您是否在累积以上两个答案?没有问题。其中一个答案已被删除。但是,在发布新答案之前,请确保您查看了其他答案@AhamBrahmaasmi是的,为什么不?@DipakKeshariya用我的主xml文件更新了这个问题。请帮忙。从过去两天开始尝试。你是否在累积以上两个答案?没有问题。其中一个答案已被删除。但是,在发布新答案之前,请确保您查看了其他答案@AhamBrahmaasmi是的,为什么不?@DipakKeshariya用我的主xml文件更新了这个问题。请帮忙。从过去两天开始尝试。