Java 试图使用google-play-services_lib库，但出现诸如'；GooglePlayServicesClient未解析为类型'； 我所做的

我正在学习以下教程：

我想我被困在上面页面中的“在清单文件中声明库组件”中了

我猜这意味着库没有正确导入，或者我没有声明什么。事实上，我敢打赌这是我的错，我可能需要在清单文件中声明一些东西。然而，我在谷歌上搜索的“声明活动GooglePlayServicesManifest”让我相信，这个库可能没有什么需要声明的东西——否则我肯定会遇到一些例子

sdk管理器 已安装Google play服务
已安装Google API
没有要安装的更新，因此不可能有任何内容过期

导入库项目 我已导入库（右键单击我的项目>属性>android>添加>播放服务库）。
已勾选和未勾选的“is library”复选框无效

清理项目和库项目 我已多次安装并使用project>clean功能
Eclipse/ADT已多次重新启动

错误： （除其他外）。

提前谢谢你的建议。第一篇文章，所以我希望我问的是正确的和清楚的

代码 清单文件：

    <?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.atdev.atapp"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="17" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.atdev.atapp.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.atdev.atapp.Venue"
            android:label="@string/title_activity_venue"
            android:parentActivityName="com.atdev.atapp.MainActivity" >
            <meta-data
                android:name="android.support.PARENT_ACTIVITY"
                android:value="com.atdev.atapp.MainActivity" />
        </activity>
    </application>

</manifest>

主要活动xml:

    <RelativeLayout 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:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity" >

    <EditText
        android:id="@+id/venue_search"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_toLeftOf="@+id/button1"
        android:ems="10"
        android:hint="@+id/venue_search" >

        <requestFocus />
    </EditText>

    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_above="@+id/venue_search"
        android:layout_alignParentRight="true"
        android:layout_marginBottom="34dp"
        android:layout_marginRight="31dp"
        android:onClick="sendVenueSearch"
        android:text="@string/button_venue_search" />

    <ListView
        android:id="@+id/venueList"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/venue_search"
        android:layout_below="@+id/button1" >
    </ListView>

</RelativeLayout>

---

我在实现

GooglePlayServicesClient.ConnectionCallbacks时遇到了同样的问题，因为它无法解决导入问题，只需删除
GooglePlayServicesClient。
前缀并重新组织导入就解决了问题

只需将鼠标移到“GooglePlayServicesClient.ConnectionCallbacks”功能上

它会建议您将“导入GooglePlayServicesClient”作为链接。只要点击它

如果问题是没有导入该库，那么您的错误现在将消失

此错误与您正在使用的google play服务库版本有关

我也遇到了同样的问题，我使用sdk管理器更新了play服务库，然后将其导入工作区

请注意，在构建项目时，您不应该每次都构建库。在生成项目之前，请删除库文件中的勾号

从清单中，我使用的版本是
android:versionCode=“4323030”
android:versionName=“4.3.23（1069729-030）

此版本与其他版本相比运行正常。
导入时是否将库复制到您的工作区？是的，我在eclipse中选中了标有“复制到工作区”的框，库项目现在列在包资源管理器中我的应用程序项目下面。您确定库已添加到您的项目中吗？只需右键单击您的项目进行检查ect并选择属性，然后选择android。我是一个完全的初学者，所以我不确定我是否害怕。据我所知，将库添加到项目只涉及上面列出的步骤。当我右键单击我的应用程序项目>属性>android时，库窗格中列出了google-play-services_lib。它旁边有一个绿色勾号，并且“is library”复选框设置为true。
编辑：为了清楚起见，我没有将任何googleplayserviceslib文件直接拖动到我自己的项目文件中，因为我相信它们应该彼此独立，所以在我的包资源管理器中，我有我的应用程序项目&下面是lib项目不要单击该复选框（is library）如果你的项目不是图书馆。非常感谢！救了我一天
    package com.atdev.atapp;

    import android.app.Activity;
    import android.app.Dialog;
    import android.content.Intent;
    import android.content.IntentSender;
    import android.location.Location;
    import android.os.Bundle;
    import android.support.v4.app.DialogFragment;
    import android.util.Log;
    import android.view.Menu;
    import android.view.View;
    import android.widget.EditText;
    import android.widget.Toast;

    import com.google.android.gms.common.ConnectionResult;
    import com.google.android.gms.common.GooglePlayServicesUtil;
    import com.google.android.gms.location.LocationClient;

    public class MainActivity extends Activity implements
    GooglePlayServicesClient.ConnectionCallbacks,
    GooglePlayServicesClient.OnConnectionFailedListener {

    // ************************************************************************

    // GLOBAL CONSTANTS

        // Define a request code to send to Google Play services. This code is returned in Activity.onActivityResult
        private final static int CONNECTION_FAILURE_RESOLUTION_REQUEST = 9000;

        // Set the contents of the venue search field to this string
        public final static String VENUE_SEARCH = "com.atroom.atroom.MESSAGE";

        // Global variable to hold the current location
        Location mCurrentLocation;

        // Define a DialogFragment that displays the google play services error dialog
        public static class ErrorDialogFragment extends DialogFragment {
            // Global field to contain the error dialog
            private Dialog mDialog;
            // Default constructor. Sets the dialog field to null
            public ErrorDialogFragment() {
                super();
                mDialog = null;
            }
            // Set the dialog to display
            public void setDialog(Dialog dialog) {
                mDialog = dialog;
            }
            // Return a Dialog to the DialogFragment.
            @Override
            public Dialog onCreateDialog(Bundle savedInstanceState) {
                return mDialog;
            }
        }

    // ********************************************************************************

    // GOOGLE PLAY SERVICES METHODS

        // Handle results returned to the FragmentActivity by Google Play services
        @Override
        protected void onActivityResult(int requestCode, int resultCode, Intent data) {
            // Decide what to do based on the original request code
            switch (requestCode) {
                case CONNECTION_FAILURE_RESOLUTION_REQUEST :
                    // If the result code is Activity.RESULT_OK, try to connect again
                    switch (resultCode) {
                        case Activity.RESULT_OK :
                        // Try the request again
                        break;
                    }
            }
        }

        // Do the following to test whether Google Play Services are available and take relevant action
        private boolean servicesConnected() {
            // Check that Google Play services is available
            int resultCode = GooglePlayServicesUtil.isGooglePlayServicesAvailable(this);
                // If Google Play services is available
                if (ConnectionResult.SUCCESS == resultCode) {
                    // In debug mode, log the status
                    Log.d("Location Updates","Google Play services is available.");
                    // Continue
                    return true;
                // Google Play services was not available for some reason
                } else {
                    // Get the error code
                    int errorCode = connectionResult.getErrorCode();
                    // Get the error dialog from Google Play services
                    Dialog errorDialog = GooglePlayServicesUtil.getErrorDialog(
                            errorCode,
                            this,
                            CONNECTION_FAILURE_RESOLUTION_REQUEST);
                    // If Google Play services can provide an error dialog
                    if (errorDialog != null) {
                        // Create a new DialogFragment for the error dialog
                        ErrorDialogFragment errorFragment =
                                new ErrorDialogFragment();
                        // Set the dialog in the DialogFragment
                        errorFragment.setDialog(errorDialog);
                        // Show the error dialog in the DialogFragment
                        errorFragment.show(getSupportFragmentManager(),
                                "Location Updates");
                    }
                }
        }

        // Location Services calls the following on successful connection to client
        @Override
        public void onConnected(Bundle dataBundle) {
        // Display the connection status
        Toast.makeText(this, "Connected", Toast.LENGTH_SHORT).show();
        }

        // Location Services calls the following if connection to the location client drops because of an error.
        @Override
        public void onDisconnected() {
            // Display the connection status
            Toast.makeText(this, "Disconnected. Please re-connect.",
                    Toast.LENGTH_SHORT).show();
        }

        // Location Services calls the following if the attempt to connect to Location Services fails
        @Override
        public void onConnectionFailed(ConnectionResult connectionResult) {
            /*
             * Google Play services can resolve some errors it detects.
             * If the error has a resolution, try sending an Intent to
             * start a Google Play services activity that can resolve
             * error.
             */
            if (connectionResult.hasResolution()) {
                try {
                    // Start an Activity that tries to resolve the error
                    connectionResult.startResolutionForResult(
                            this,
                            CONNECTION_FAILURE_RESOLUTION_REQUEST);
                    /*
                     * Thrown if Google Play services canceled the original
                     * PendingIntent
                     */
                } catch (IntentSender.SendIntentException e) {
                    // Log the error
                    e.printStackTrace();
                }
            } else {
                /*
                 * If no resolution is available, display a dialog to the
                 * user with the error.
                 */
                showErrorDialog(connectionResult.getErrorCode());
            }
        }


    // *************************************************************************************

    // LOCATION CONNECTION METHODS

        // Set the current location to the last known location while a new location is being sought
        mCurrentLocation = mLocationClient.getLastLocation();


    // *************************************************************************************

    // ACTIVITY METHODS

        // Do the following when the activity is created
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main); 
            // Create a new location client, using the enclosing class to handle callbacks
            mLocationClient = new LocationClient(this, this, this);
        }

        // Do the following when the Activity becomes visible.
        @Override
        protected void onStart() {
            super.onStart();
            // Connect the client. This is in 'onStart' not 'onCreate' as we want to connect whenever
            // the activity becomes visible, not just when the activity is started for the first time.
            mLocationClient.connect();
        }

        // Do the following when the Activity is no longer visible.
        @Override
        protected void onStop() {
            // Disconnecting the client invalidates it. This saves battery - we don't want the location
            // to run in the background when the app/activity is not in use.
            mLocationClient.disconnect();
            super.onStop();
        }

        // Do the following when the menu is created
        @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;
        }

        // Do the following when the Venue Search button is clicked
        public void sendVenueSearch (View view) {
            Intent intent = new Intent(this, Venue.class);
            EditText editText = (EditText) findViewById(R.id.venue_search);
            String message = editText.getText().toString();
            intent.putExtra(VENUE_SEARCH, message);
            startActivity(intent);
        }

}

    <RelativeLayout 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:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity" >

    <EditText
        android:id="@+id/venue_search"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_toLeftOf="@+id/button1"
        android:ems="10"
        android:hint="@+id/venue_search" >

        <requestFocus />
    </EditText>

    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_above="@+id/venue_search"
        android:layout_alignParentRight="true"
        android:layout_marginBottom="34dp"
        android:layout_marginRight="31dp"
        android:onClick="sendVenueSearch"
        android:text="@string/button_venue_search" />

    <ListView
        android:id="@+id/venueList"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/venue_search"
        android:layout_below="@+id/button1" >
    </ListView>

</RelativeLayout>