我正在将Google Cloud Messaging服务添加到我的应用程序并更改了我的清单文件。我得到以下StackTrace。
02-27 18:58:11.282: E/AndroidRuntime(988): FATAL EXCEPTION: main
02-27 18:58:11.282: E/AndroidRuntime(988): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.example.phptest/com.example.phptest.MainActivity}: java.lang.ClassNotFoundException: com.example.phptest.MainActivity
02-27 18:58:11.282: E/AndroidRuntime(988): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1983)
02-27 18:58:11.282: E/AndroidRuntime(988): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084)
02-27 18:58:11.282: E/AndroidRuntime(988): at android.app.ActivityThread.access$600(ActivityThread.java:130)
02-27 18:58:11.282: E/AndroidRuntime(988): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195)
02-27 18:58:11.282: E/AndroidRuntime(988): at android.os.Handler.dispatchMessage(Handler.java:99)
02-27 18:58:11.282: E/AndroidRuntime(988): at android.os.Looper.loop(Looper.java:137)
02-27 18:58:11.282: E/AndroidRuntime(988): at android.app.ActivityThread.main(ActivityThread.java:4745)
02-27 18:58:11.282: E/AndroidRuntime(988): at java.lang.reflect.Method.invokeNative(Native Method)
02-27 18:58:11.282: E/AndroidRuntime(988): at java.lang.reflect.Method.invoke(Method.java:511)
02-27 18:58:11.282: E/AndroidRuntime(988): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
02-27 18:58:11.282: E/AndroidRuntime(988): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
02-27 18:58:11.282: E/AndroidRuntime(988): at dalvik.system.NativeStart.main(Native Method)
02-27 18:58:11.282: E/AndroidRuntime(988): Caused by: java.lang.ClassNotFoundException: com.example.phptest.MainActivity
02-27 18:58:11.282: E/AndroidRuntime(988): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61)
02-27 18:58:11.282: E/AndroidRuntime(988): at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
02-27 18:58:11.282: E/AndroidRuntime(988): at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
02-27 18:58:11.282: E/AndroidRuntime(988): at android.app.Instrumentation.newActivity(Instrumentation.java:1053)
02-27 18:58:11.282: E/AndroidRuntime(988): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1974)
02-27 18:58:11.282: E/AndroidRuntime(988): ... 11 more
这是我的清单文件：
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.phptest"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="10"
android:targetSdkVersion="16" />
<uses-configuration />
<permission
android:name="com.example.phptest.permission.C2D_MESSAGE"
android:protectionLevel="signature" />
<uses-permission android:name="com.example.phptest.permission.C2D_MESSAGE" />
<!-- App receives GCM messages. -->
<uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
<!-- GCM connects to Google Services. -->
<uses-permission android:name="android.permission.INTERNET" />
<!-- GCM requires a Google account. -->
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
<!-- Keeps the processor from sleeping when a message is received. -->
<uses-permission android:name="android.permission.WAKE_LOCK" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.example.phptest.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>
<service android:name=".GCMIntentService" />
<receiver
android:name="com.google.android.gcm.GCMBroadcastReceiver"
android:permission="com.google.android.c2dm.permission.SEND" >
<intent-filter>
<action android:name="com.google.android.c2dm.intent.RECEIVE" />
<action android:name="com.google.android.c2dm.intent.REGISTRATION" />
<category android:name="com.example.phptest" />
</intent-filter>
</receiver>
</application>
</manifest>
MainActivity：
package com.example.phptest;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import com.example.phptest.DeviceLogin.LoginReply;
import com.google.android.gcm.GCMRegistrar;
import android.os.Bundle;
import android.app.Activity;
import android.util.Log;
import android.view.Menu;
public class MainActivity extends Activity implements LoginReply {
String TAG = "Main Activity";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
DeviceLogin d = new DeviceLogin(this);
d.execute("xxxx","12345");
GCMRegistrar.checkDevice(this);
GCMRegistrar.checkManifest(this);
final String regId = GCMRegistrar.getRegistrationId(this);
if (regId.equals("")) {
GCMRegistrar.register(this, GCMIntentService.senderId);
} else {
Log.v(TAG, "Already registered");
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
public static String makeCall(String scriptName) {
String address = "http://10.0.2.2/" + scriptName + ".php";
HttpPost httpPost = new HttpPost(address);
HttpClient httpClient = new DefaultHttpClient();
StringBuilder total = new StringBuilder();
try {
//httpPost.setEntity(new UrlEncodedFormEntity(params));
// Execute HTTP Post Request
HttpResponse response = httpClient.execute(httpPost);
InputStream is = response.getEntity().getContent();
BufferedReader rd = new BufferedReader(new InputStreamReader(is));
String line = "";
// Read response until the end
while ((line = rd.readLine()) != null) {
total.append(line);
}
// Return full string
System.out.println("TOTAL: " + total.toString());
return total.toString();
} catch (Exception e) {
e.printStackTrace();
}
return "empty";
}
public void onDevicesDownloaded(String login) {
// TODO Auto-generated method stub
}
}
有什么想法吗？
答案 0 :(得分：0)
我看到当在name属性中指定完整路径时，Android应用程序会变得挑剔，除非该类所在的包与您在清单文件顶部指定的包不同。尝试将其更改为“.MainActivity”，看看是否让它变得快乐。
答案 1 :(得分：0)
解决方案是清理项目，D'哦！的xD