为 Android 开发实施 GoogleApiClient Builder 时出错

Error implementing GoogleApiClient Builder for Android development

提问by Taha Rushain

I am following Google's documentation to implement Google+ Sign In feature into an app.

我正在按照 Google 的文档将 Google+ 登录功能实施到应用程序中。

https://developers.google.com/+/mobile/android/getting-started

https://developers.google.com/+/mobile/android/getting-started

I followed each step according to the guide but got stuck in an error generated by the GoogleApiClient.Builder , I searched thoroughly but got no result. Please help me sort it out. Thank you.

我按照指南执行了每个步骤，但陷入了由 GoogleApiClient.Builder 生成的错误中，我进行了彻底的搜索，但没有得到任何结果。请帮我整理一下。谢谢你。

Error code:

错误代码：

    mGoogleApiClient = new GoogleApiClient.Builder(this)
            .addConnectionCallbacks(this)
            .addOnConnectionFailedListener(this).addApi(Plus.API, null)
            .addScope(Plus.SCOPE_PLUS_LOGIN).build();

Error Message :

错误信息 ：

   The method addConnectionCallbacks(GoogleApiClient.ConnectionCallbacks) in the type 
   GoogleApiClient.Builder is not applicable for the arguments (MainActivity)

Complete MainActivity.java code :

完整的 MainActivity.java 代码：

    package mad.project.mightysatta;

    import android.content.Intent;
    import android.content.IntentSender.SendIntentException;
    import android.os.Bundle;
    import android.support.v4.app.Fragment;
    import android.support.v7.app.ActionBarActivity;
    import android.view.LayoutInflater;
    import android.view.Menu;
    import android.view.MenuInflater;
    import android.view.MenuItem;
    import android.view.View;
    import android.view.ViewGroup;

    import com.google.android.gms.common.ConnectionResult;
    import com.google.android.gms.common.GooglePlayServicesClient.ConnectionCallbacks;
    import com.google.android.gms.common.GooglePlayServicesClient.OnConnectionFailedListener;
    import com.google.android.gms.common.api.GoogleApiClient;
    import com.google.android.gms.plus.Plus;

    public class MainActivity extends ActionBarActivity implements
    ConnectionCallbacks, OnConnectionFailedListener {

/* Request code used to invoke sign in user interactions. */
private static final int RC_SIGN_IN = 0;

/* Client used to interact with Google APIs. */
private GoogleApiClient mGoogleApiClient;

/*
 * A flag indicating that a PendingIntent is in progress and prevents us
 * from starting further intents.
 */
private boolean mIntentInProgress;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    mGoogleApiClient = new GoogleApiClient.Builder(this)
            .addConnectionCallbacks(this)
            .addOnConnectionFailedListener(this).addApi(Plus.API, null)
            .addScope(Plus.SCOPE_PLUS_LOGIN).build();

    setContentView(R.layout.activity_main);

    if (savedInstanceState == null) {
        getSupportFragmentManager().beginTransaction()
                .add(R.id.container, new PlaceholderFragment()).commit();
    }

}

@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);
    MenuInflater inflater = getMenuInflater();
    inflater.inflate(R.menu.main_activity_actions, menu);
    return super.onCreateOptionsMenu(menu);
    // return true;
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    // Handle action bar item clicks here. The action bar will
    // automatically handle clicks on the Home/Up button, so long
    // as you specify a parent activity in AndroidManifest.xml.
    int id = item.getItemId();
    if (id == R.id.action_settings) {
        return true;
    }
    return super.onOptionsItemSelected(item);
}

/**
 * A placeholder fragment containing a simple view.
 */
public static class PlaceholderFragment extends Fragment {

    public PlaceholderFragment() {
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {
        View rootView = inflater.inflate(R.layout.fragment_main, container,
                false);
        return rootView;
    }
}

@Override
public void onConnectionFailed(ConnectionResult result) {
    // TODO Auto-generated method stub

    if (!mIntentInProgress && result.hasResolution()) {
        try {
            mIntentInProgress = true;
            result.startResolutionForResult(this, // your activity
                    RC_SIGN_IN);
        } catch (SendIntentException e) {
            // The intent was canceled before it was sent. Return to the
            // default
            // state and attempt to connect to get an updated
            // ConnectionResult.
            mIntentInProgress = false;
            mGoogleApiClient.connect();
        }
    }

}

@Override
public void onConnected(Bundle connectionHint) {
    // TODO Auto-generated method stub

}

@Override
public void onDisconnected() {
    // TODO Auto-generated method stub

}

protected void onStart() {
    super.onStart();
    mGoogleApiClient.connect();
}

protected void onStop() {
    super.onStop();

    if (mGoogleApiClient.isConnected()) {
        mGoogleApiClient.disconnect();
    }
}

protected void onActivityResult(int requestCode, int responseCode,
        Intent intent) {
    if (requestCode == RC_SIGN_IN) {
        mIntentInProgress = false;

        if (!mGoogleApiClient.isConnecting()) {
            mGoogleApiClient.connect();
        }
    }
}

public void onConnectionSuspended(int cause) {
    mGoogleApiClient.connect();
}

    }

In this code if I comment out .addConnectionCallbacks and .addOnConnectionFailedListener , then the error goes away. The error seems to be related with their arguments.

在这段代码中，如果我注释掉 .addConnectionCallbacks 和 .addOnConnectionFailedListener ，那么错误就会消失。该错误似乎与他们的论点有关。

    mGoogleApiClient = new GoogleApiClient.Builder(this)
        //  .addConnectionCallbacks(this)
        //  .addOnConnectionFailedListener(this)
            .addApi(Plus.API, null)
            .addScope(Plus.SCOPE_PLUS_LOGIN).build();

Updated Main Activity , after replacing implements to

更新了 Main Activity ，将工具替换为

    GooglePlayServicesClient.ConnectionCallbacks,
    GooglePlayServicesClient.OnConnectionFailedListener

MainActivity.java(Updated)

MainActivity.java（更新）

    package mad.project.mightysatta;

    import android.content.Intent;
    import android.content.IntentSender.SendIntentException;
    import android.os.Bundle;
    import android.support.v4.app.Fragment;
    import android.support.v7.app.ActionBarActivity;
    import android.view.LayoutInflater;
    import android.view.Menu;
    import android.view.MenuInflater;
    import android.view.MenuItem;
    import android.view.View;
    import android.view.ViewGroup;

    import com.google.android.gms.common.ConnectionResult;
    import com.google.android.gms.common.GooglePlayServicesClient;
    import com.google.android.gms.common.GooglePlayServicesClient.ConnectionCallbacks;
    import com.google.android.gms.common.GooglePlayServicesClient.OnConnectionFailedListener;
    import com.google.android.gms.common.api.GoogleApiClient;
    import com.google.android.gms.plus.Plus;

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

/* Request code used to invoke sign in user interactions. */
private static final int RC_SIGN_IN = 0;

/* Client used to interact with Google APIs. */
private GoogleApiClient mGoogleApiClient;

/*
 * A flag indicating that a PendingIntent is in progress and prevents us
 * from starting further intents.
 */
private boolean mIntentInProgress;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    mGoogleApiClient = new GoogleApiClient.Builder(this)
            .addConnectionCallbacks(this)
            .addOnConnectionFailedListener(this)
            .addApi(Plus.API, null)
            .addScope(Plus.SCOPE_PLUS_LOGIN).build();

    setContentView(R.layout.activity_main);

    if (savedInstanceState == null) {
        getSupportFragmentManager().beginTransaction()
                .add(R.id.container, new PlaceholderFragment()).commit();
    }

}

@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);
    MenuInflater inflater = getMenuInflater();
    inflater.inflate(R.menu.main_activity_actions, menu);
    return super.onCreateOptionsMenu(menu);
    // return true;
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    // Handle action bar item clicks here. The action bar will
    // automatically handle clicks on the Home/Up button, so long
    // as you specify a parent activity in AndroidManifest.xml.
    int id = item.getItemId();
    if (id == R.id.action_settings) {
        return true;
    }
    return super.onOptionsItemSelected(item);
}

/**
 * A placeholder fragment containing a simple view.
 */
public static class PlaceholderFragment extends Fragment {

    public PlaceholderFragment() {
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {
        View rootView = inflater.inflate(R.layout.fragment_main, container,
                false);
        return rootView;
    }
}

@Override
public void onConnectionFailed(ConnectionResult result) {
    // TODO Auto-generated method stub

    if (!mIntentInProgress && result.hasResolution()) {
        try {
            mIntentInProgress = true;
            result.startResolutionForResult(this, // your activity
                    RC_SIGN_IN);
        } catch (SendIntentException e) {
            // The intent was canceled before it was sent. Return to
            // default
            // state and attempt to connect to get an updated
            // ConnectionResult.
            mIntentInProgress = false;
            mGoogleApiClient.connect();
        }
    }

}

@Override
public void onConnected(Bundle connectionHint) {
    // TODO Auto-generated method stub

}

@Override
public void onDisconnected() {
    // TODO Auto-generated method stub

}

protected void onStart() {
    super.onStart();
    mGoogleApiClient.connect();
}

protected void onStop() {
    super.onStop();

    if (mGoogleApiClient.isConnected()) {
        mGoogleApiClient.disconnect();
    }
}

protected void onActivityResult(int requestCode, int responseCode,
        Intent intent) {
    if (requestCode == RC_SIGN_IN) {
        mIntentInProgress = false;

        if (!mGoogleApiClient.isConnecting()) {
            mGoogleApiClient.connect();
        }
    }
}

public void onConnectionSuspended(int cause) {
    mGoogleApiClient.connect();
}

    }

回答by Sylas Seabrook

I see in their documentation where they clearly instruct you to include this import:

我在他们的文档中看到他们明确指示您包含此导入：

import com.google.android.gms.common.GooglePlayServicesClient.ConnectionCallbacks;

However, the error being thrown is expecting a different class than GooglePlayServicesClient.ConnectionCallbacks, it's asking for GoogleApiClient.ConnectionCallbacks. Try changing your implements to use the more-qualified class name. That looks to be the only possible thing throwing the code for a loop and without the explicit qualified classname, it will default to the directly imported class name.

但是，抛出的错误期望与 不同的类GooglePlayServicesClient.ConnectionCallbacks，它要求GoogleApiClient.ConnectionCallbacks. 尝试更改您的工具以使用更合格的类名。这看起来是唯一可能抛出循环代码并且没有显式限定类名的事情，它将默认为直接导入的类名。

It's always tougher when you have to question the manual.

当你不得不质疑手册时，总是更难。

Edit: I mean a change like this:

编辑：我的意思是这样的变化：

public class MainActivity 
    extends ActionBarActivity 
    implements GoogleApiClient.ConnectionCallbacks,
               GoogleApiClient.OnConnectionFailedListener {

回答by raju

I too faced the same problem, i resolved by doing the following things.

我也遇到了同样的问题，我通过做以下事情解决了。

import the right ConnectionCallbacks.

导入正确的 ConnectionCallbacks。

here is my code:

这是我的代码：

import android.content.Context;
import android.os.Bundle;

import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.drive.Drive;

public class GplusLogin implements
    GoogleApiClient.ConnectionCallbacks,
    GoogleApiClient.OnConnectionFailedListener {
GoogleApiClient mGoogleApiClient;
GplusLogin(Context context){

    mGoogleApiClient = new GoogleApiClient.Builder(context)
            .addApi(Drive.API)
            .addScope(Drive.SCOPE_FILE)
            .addConnectionCallbacks((GoogleApiClient.ConnectionCallbacks) context)
            .addOnConnectionFailedListener(this)
            .build();
}

@Override
public void onConnected(Bundle bundle) {

}

@Override
public void onConnectionFailed(ConnectionResult connectionResult) {

}

@Override
public void onConnectionSuspended(int i) {

}
}

回答by carlos

click alt enter and force android studio to implement:

点击alt回车并强制android studio实现：

GoogleApiClient.ConnectionCallbacks,

GoogleApiClient.ConnectionCallbacks，

GoogleApiClient.OnConnectionFailedListener

GoogleApiClient.OnConnectionFailedListener

回答by woojoo666

turns out they (google) don't follow much of the guide themselves. Use their Google Drive Android Quickstartas a reference, which they actually do mention at the top of the tutorial, but they give it the misleading name "Android Quickstart" even though it is specific to Google Drive

事实证明，他们（谷歌）自己并没有遵循很多指南。使用他们的Google Drive Android Quickstart作为参考，他们实际上在教程的顶部提到了这一点，但他们给它起了一个误导性的名字“Android Quickstart”，即使它特定于 Google Drive

The note at the top of the guide:

指南顶部的注释：

回答by Brinda Rathod

   implements LocationListener, GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener,OnMapReadyCallback

to the Activity

到活动