我嘗試實現基於rscm(中間件)的應用程序。當我嘗試在模擬器中運行,我得到下列錯誤:android應用程序錯誤5
錯誤:03-27 16:58:20.490:E /跟蹤(1508):錯誤打開跟蹤文件:沒有 這樣的文件或目錄(2)
03-27 21:53:21.610:d/AndroidRuntime(3803):關閉VM 03-27 21:53:21.610:W/dalvikvm(3803):線程ID = 1:螺紋與離開E/AndroidRuntime(3803):致命異常:main 03-27 21:53:21.760: E/AndroidRuntime(3803):java.lang。 RuntimeException:無法 實例化活動 ComponentInfo {com.example.context_application/com.example.context_application.MyContextAwareActivity}: java.lang.ClassNotFoundException:未在路徑中找到類 「com.example.context_application.MyContextAwareActivity」: /data/app/com .example.context_application-2.apk 03-27 21:53:21.760: E/AndroidRuntime(3803):at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2106) 03-27 21:53:21.760 :E/AndroidRuntime(3803):at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230) 03-27 21:53:21.760:E/AndroidRuntime(3803):at android.app.ActivityThread.access $ 600(ActivityThread.java:141)03-27 21:53:21.760:E/AndroidRuntim e(3803):at android.app.ActivityThread $ H.handleMessage(ActivityThread.java:1234) 03-27 21:53:21.760:E/AndroidRuntime(3803):at android.os.Handler.dispatchMessage( Handler.java:99)03-27 21:53:21.760:E/AndroidRuntime(3803):at android.os.Looper.loop(Looper.java:137)03-27 21:53:21.760: E/AndroidRuntime(3803):at android.app.ActivityThread.main(ActivityThread.java:5041)03-27 21:53:21.760:E/AndroidRuntime(3803):at java.lang.reflect.Method.invokeNative (Native Method)03-27 21:53:21.760:E/AndroidRuntime(3803):at java.lang.reflect.Method.invoke(Method.java:511)03-27 21:53:21.760: E/AndroidRuntime(3803): at com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run(ZygoteInit.java:793) 03-27 21:53:21.760:E/AndroidRuntime(3803):at com.android.internal.os.ZygoteInit .main(ZygoteInit.java:560)03-27 21:53:21.760:E/AndroidRuntime(3803):at dalvik.system.NativeStart.main(Native Method)03-27 21:53:21.760: E/AndroidRuntime(3803):導致:java.lang.ClassNotFoundException: 未找到類 「com.example.context_application.MyContextAwareActivity」on path: /data/app/com.example.context_application-2.apk 03 -27 21:53:21.760: E/AndroidRuntime(3803):在 dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:65)E:// AndroidRuntime(3803):at 21:53:21.760:E/AndroidRuntime(3803):在 java.lang.ClassLoader.loadClass(ClassLoader.java:461)03-27 21:53:21.760:E/AndroidRuntime(3803):at android.app.Instrumentation.newActivity(Instrumentation.java:1054) 03-27 21:53:21.760:E/AndroidRuntime(3803):at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2097) 03-27 21:53:21.760:E/AndroidRuntime(3803):。 ..11更多
任何人都可以幫忙嗎?
package com.example.context;
import android.os.Bundle;
import android.widget.TextView;
import android.widget.Toast;
import org.aspectsense.rscm.ContextValue;
import org.aspectsense.rscm.context.client.ContextListenerActivity;
import org.json.JSONException;
import java.util.Date;
public class MyContextAwareActivity extends ContextListenerActivity
{
@Override public String[] getRequestedScopes()
{
return new String[] { "battery.level" };
}
private TextView messageTextView;
@Override protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
messageTextView = new TextView(this);
setContentView(messageTextView);
appendMessage("Activity created");
}
private void appendMessage(final String message)
{
final String currentMessage = messageTextView.getText().toString();
messageTextView.setText(currentMessage + "\n" + message);
}
@Override public void onContextValueChanged(ContextValue contextValue)
{
try
{
appendMessage(new Date() + ": The battery level is " + contextValue.getValueAsInteger() + "%");
}
catch (JSONException jsone)
{
Toast.makeText(this, "Error while displaying context event: " + contextValue, Toast.LENGTH_SHORT).show();
}
}
}
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.context"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="17" />
<uses-permission android:name="android.permission.READ_CONTACTS" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.example.context.MyContextAwareActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
plz用問題添加完整的logcat結果以獲得更多幫助。 – 2013-03-27 18:35:38