google play服务无法实例化活动组件信息java.lang.ClassNotFoundException
在我导入google play服务和basegamesutils之前,一切都还不错。现在应用程序崩溃,在logcat中我可以看到:google play服务无法实例化活动组件信息java.lang.ClassNotFoundException,java,android,android-activity,google-play-games,Java,Android,Android Activity,Google Play Games,在我导入google play服务和basegamesutils之前,一切都还不错。现在应用程序崩溃,在logcat中我可以看到: 12-05 07:42:49.445: E/AndroidRuntime(6223): FATAL EXCEPTION: main 12-05 07:42:49.445: E/AndroidRuntime(6223): java.lang.RuntimeException: Unable to instantiate activity ComponentIn
12-05 07:42:49.445: E/AndroidRuntime(6223): FATAL EXCEPTION: main
12-05 07:42:49.445: E/AndroidRuntime(6223): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.kubasienki.freefall/com.kubasienki.freefall.MainActivity}: java.lang.ClassNotFoundException: com.kubasienki.freefall.MainActivity
12-05 07:42:49.445: E/AndroidRuntime(6223): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2024)
12-05 07:42:49.445: E/AndroidRuntime(6223): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2125)
12-05 07:42:49.445: E/AndroidRuntime(6223): at android.app.ActivityThread.access$600(ActivityThread.java:140)
12-05 07:42:49.445: E/AndroidRuntime(6223): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1227)
12-05 07:42:49.445: E/AndroidRuntime(6223): at android.os.Handler.dispatchMessage(Handler.java:99)
12-05 07:42:49.445: E/AndroidRuntime(6223): at android.os.Looper.loop(Looper.java:137)
12-05 07:42:49.445: E/AndroidRuntime(6223): at android.app.ActivityThread.main(ActivityThread.java:4898)
12-05 07:42:49.445: E/AndroidRuntime(6223): at java.lang.reflect.Method.invokeNative(Native Method)
12-05 07:42:49.445: E/AndroidRuntime(6223): at java.lang.reflect.Method.invoke(Method.java:511)
12-05 07:42:49.445: E/AndroidRuntime(6223): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1006)
12-05 07:42:49.445: E/AndroidRuntime(6223): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:773)
12-05 07:42:49.445: E/AndroidRuntime(6223): at dalvik.system.NativeStart.main(Native Method)
12-05 07:42:49.445: E/AndroidRuntime(6223): Caused by: java.lang.ClassNotFoundException: com.kubasienki.freefall.MainActivity
12-05 07:42:49.445: E/AndroidRuntime(6223): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61)
12-05 07:42:49.445: E/AndroidRuntime(6223): at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
12-05 07:42:49.445: E/AndroidRuntime(6223): at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
12-05 07:42:49.445: E/AndroidRuntime(6223): at android.app.Instrumentation.newActivity(Instrumentation.java:1057)
12-05 07:42:49.445: E/AndroidRuntime(6223): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2015)
12-05 07:42:49.445: E/AndroidRuntime(6223): ... 11 more
my MainActivity.java:
package com.kubasienki.freefall;
import com.google.example.games.basegameutils.BaseGameActivity;
import com.kubasienki.freefall.R;
import android.os.Bundle;
import android.content.Intent;
import android.view.View;
import android.widget.Button;
public class MainActivity extends BaseGameActivity
implements View.OnClickListener {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// final Button button = (Button) findViewById(R.id.start);
// button.setOnClickListener(new View.OnClickListener() {
//@Override
//public void onClick(View v) {
// Intent intent = new Intent(MainActivity.this, Fall.class);
// startActivity(intent);
// }
// });
//final Button button1 = (Button) findViewById(R.id.howto);
// button1.setOnClickListener(new View.OnClickListener() {
// @Override
// public void onClick(View v) {
// Intent intent1 = new Intent(MainActivity.this, HowTo.class);
//
// startActivity(intent1);
// }
// });
findViewById(R.id.sign_in_button).setOnClickListener(this);
findViewById(R.id.sign_out_button).setOnClickListener(this);
findViewById(R.id.howto).setOnClickListener(this);
findViewById(R.id.start).setOnClickListener(this);
}
@Override
public void onSignInFailed() {
findViewById(R.id.sign_in_button).setVisibility(View.VISIBLE);
findViewById(R.id.sign_out_button).setVisibility(View.GONE);
}
@Override
public void onSignInSucceeded() {
findViewById(R.id.sign_in_button).setVisibility(View.GONE);
findViewById(R.id.sign_out_button).setVisibility(View.VISIBLE);
}
@Override
public void onClick(View view) {
if (view.getId() == R.id.sign_in_button) {
// start the asynchronous sign in flow
beginUserInitiatedSignIn();
}
else if (view.getId() == R.id.sign_out_button) {
// sign out.
signOut();
// show sign-in button, hide the sign-out button
findViewById(R.id.sign_in_button).setVisibility(View.VISIBLE);
findViewById(R.id.sign_out_button).setVisibility(View.GONE);
}
else if(view.getId() == R.id.howto){
Intent intent1 = new Intent(MainActivity.this, HowTo.class);
startActivity(intent1);
}
else if(view.getId() == R.id.start){
Intent intent = new Intent(MainActivity.this, Fall.class);
startActivity(intent);}
}
//@Override
//public boolean onCreateOptionsMenu(Menu menu) {
// // Inflate the menu; this adds items to the action bar if it is present.
// getMenuInflater().inflate(R.menu.main, menu);
// return true;
//}
}
并表明:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.kubasienki.freefall"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="18" />
<uses-feature android:name="android.hardware.sensor.accelerometer" android:required="true" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.kubasienki.freefall.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="com.kubasienki.freefall.Fall"
android:label="@string/app_name"
android:parentActivityName="com.kubasienki.freefall.MainActivity" >
<meta-data
android:name="android.support.PARENT_ACTIVITY"
android:value="com.kubasienki.freefall.MainActivity" />
</activity>
<activity
android:name="com.kubasienki.freefall.HowTo"
android:label="@string/app_name"
android:parentActivityName="com.kubasienki.freefall.MainActivity" >
<meta-data
android:name="android.support.PARENT_ACTIVITY"
android:value="com.kubasienki.freefall.MainActivity" />
</activity>
<meta-data android:name="com.google.android.gms.games.APP_ID"
android:value="@string/app_id" />
</application>
</manifest>
我检查的内容:
希望这能有所帮助。确保
Android私有库
已签入Order并导出
。
如果没有选中,请检查它并重新启动eclipse。对我有帮助的是:
1.在本教程中,我们将在ids.xml中注册app_id,然后使用app_id格式的文件strings.xml。
2.我补充说:
<meta-data android:name="com.google.android.gms.version"
android:value="@integer/google_play_services_version" />
要Manifest.xml发生这种情况是因为MainActivity派生自BaseGameActivity,而类加载器无法找到BaseGameActivity,因为它未包含在APK中。要解决此构建问题,请确保正确构建了BaseGameUtils库并将其包含在APK中。在Eclipse中,您需要右键单击BaseGameUtils项目并转到项目属性,确保它标记为库(有一个复选框)。然后,转到项目的属性,确保将BaseGameUtils项目列为它的依赖项。如果没有,请添加它。确保选中了
Android私有库
“BaseGameActivity”是您的库项目的活动???对我有帮助的是:1。在本教程中,我们将在ids.xml中注册app_id,然后使用app_id格式的文件strings.xml。2.我已经加了:Manifest.xml你的回答帮助了我。非常感谢。