如何将 GoogleApiClient 对象传递给另一个对象 activity
How to pass an GoogleApiClient objet to another activity
在我的登录activity 中，我有一个 google 登录按钮用于登录。
我检查过并且工作正常。
我还有其他按钮可以注销和撤销并且也工作正常。
这是我的登录屏幕代码。
import android.app.ProgressDialog;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import com.bumptech.glide.Glide;
import com.bumptech.glide.load.engine.DiskCacheStrategy;
import com.google.android.gms.auth.api.Auth;
import com.google.android.gms.auth.api.signin.GoogleSignInAccount;
import com.google.android.gms.auth.api.signin.GoogleSignInOptions;
import com.google.android.gms.auth.api.signin.GoogleSignInResult;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.SignInButton;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.common.api.OptionalPendingResult;
import com.google.android.gms.common.api.ResultCallback;
import com.google.android.gms.common.api.Status;
import java.util.ArrayList;
import java.util.List;
public class MainActivity extends AppCompatActivity implements
View.OnClickListener,
GoogleApiClient.OnConnectionFailedListener
{
private static final String TAG = MainActivity.class.getSimpleName();
private static final int RC_SIGN_IN = 007;
private GoogleApiClient mGoogleApiClient;
private ProgressDialog mProgressDialog;
private SignInButton btnSignIn;
List<String> profile=new ArrayList<>();
private MyGoogleApi_Singleton myGoogleApi_singleton;
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btnSignIn = (SignInButton) findViewById(R.id.sign_in_button);
btnSignIn.setOnClickListener(this);
updateUI(false);
GoogleSignInOptions gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
.requestEmail()
.build();
mGoogleApiClient = new GoogleApiClient.Builder(this)
.enableAutoManage(this, this)
.addApi(Auth.GOOGLE_SIGN_IN_API, gso)
.build();
/* Customizing G+ button
btnSignIn.setSize(SignInButton.SIZE_STANDARD);
btnSignIn.setScopes(gso.getScopeArray());*/
//Create a new objet to handle in all class
myGoogleApi_singleton= new MyGoogleApi_Singleton();
myGoogleApi_singleton.getInstance(mGoogleApiClient);
}
private void signIn()
{
Intent signInIntent = Auth.GoogleSignInApi.getSignInIntent(mGoogleApiClient);
startActivityForResult(signInIntent, RC_SIGN_IN);
}
private void signOut()
{
Auth.GoogleSignInApi.signOut(mGoogleApiClient).setResultCallback(
new ResultCallback<Status>()
{
@Override
public void onResult(Status status)
{
updateUI(false);
}
});
}
private void revokeAccess()
{
Auth.GoogleSignInApi.revokeAccess(mGoogleApiClient).setResultCallback(
new ResultCallback<Status>()
{
@Override
public void onResult(Status status)
{
updateUI(false);
}
});
}
private void handleSignInResult(GoogleSignInResult result)
{
Log.d(TAG, "handleSignInResult:" + result.isSuccess());
if (result.isSuccess())
{
// Signed in successfully, show authenticated UI.
GoogleSignInAccount acct = result.getSignInAccount();
String personName = acct.getDisplayName();
String personPhotoUrl = acct.getPhotoUrl().toString();
String email = acct.getEmail();
String idnumber= acct.getId();
Log.e(TAG, "Name: " + personName + ", email: " + email
+ ", Image: " + personPhotoUrl+ ", Id Number: "+ idnumber);
//Save the data into the arraylist
profile.add(idnumber);
profile.add(personName);
profile.add(email);
profile.add(personPhotoUrl);
//save into sharedpreferences
StringBuilder stringBuilder = new StringBuilder();
for (String s:profile)
{
stringBuilder.append(s);
stringBuilder.append(",");
}
SharedPreferences sharpref = getSharedPreferences("ProfileList",0);
SharedPreferences.Editor editor = sharpref.edit();
editor.putString("ProfileList", stringBuilder.toString());
editor.commit();
goIndexScreen();
} else
{
// Signed out, show unauthenticated UI.
updateUI(false);
}
}
@Override
public void onClick(View v)
{
switch (v.getId())
{
case R.id.sign_in_button:
signIn();
break;
default:
break;
}
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data)
{
super.onActivityResult(requestCode, resultCode, data);
// Result returned from launching the Intent from GoogleSignInApi.getSignInIntent(...);
if (requestCode == RC_SIGN_IN)
{
GoogleSignInResult result = Auth.GoogleSignInApi.getSignInResultFromIntent(data);
handleSignInResult(result);
}
}
@Override
public void onStart()
{
super.onStart();
OptionalPendingResult<GoogleSignInResult> opr = Auth.GoogleSignInApi.silentSignIn(mGoogleApiClient);
if (opr.isDone())
{
// If the user's cached credentials are valid, the OptionalPendingResult will be "done"
// and the GoogleSignInResult will be available instantly.
Log.d(TAG, "Got cached sign-in");
GoogleSignInResult result = opr.get();
handleSignInResult(result);
} else
{
// If the user has not previously signed in on this device or the sign-in has expired,
// this asynchronous branch will attempt to sign in the user silently. Cross-device
// single sign-on will occur in this branch.
showProgressDialog();
opr.setResultCallback(new ResultCallback<GoogleSignInResult>()
{
@Override
public void onResult(GoogleSignInResult googleSignInResult)
{
hideProgressDialog();
handleSignInResult(googleSignInResult);
}
});
}
}
@Override
public void onConnectionFailed(@NonNull ConnectionResult connectionResult)
{
// An unresolvable error has occurred and Google APIs (including Sign-In) will not
// be available.
Log.d(TAG, "onConnectionFailed:" + connectionResult);
}
//method to show a progress dialog during the SignIn
private void showProgressDialog()
{
if (mProgressDialog == null)
{
mProgressDialog = new ProgressDialog(this);
mProgressDialog.setMessage("Loading...");
mProgressDialog.setIndeterminate(true);
}
mProgressDialog.show();
}
//method to hide the progress dialog
private void hideProgressDialog()
{
if (mProgressDialog != null && mProgressDialog.isShowing())
{
mProgressDialog.hide();
}
}
//method to show or hide the buttons
private void updateUI(boolean isSignedIn)
{
if (isSignedIn)
{
btnSignIn.setVisibility(View.GONE);
} else
{
btnSignIn.setVisibility(View.VISIBLE);
}
}
//method to go to next activity
private void goIndexScreen()
{
Intent intent=new Intent(this,Index.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
}
}
登录成功后跳转到另一个activity。
我需要从此 activity 注销，但我需要从登录 Activity 登录 mGoogleApiClient，但我不知道该怎么做。
我在我的代码中创建了一个新的 class（单例）
import com.google.android.gms.common.api.GoogleApiClient;
class MyGoogleApi_Singleton {
private static final String TAG = "GoogleApiClient";
private static MyGoogleApi_Singleton instance = null;
private static GoogleApiClient mGoogleApiClient = null;
private MyGoogleApi_Singleton(Context context) {
GoogleSignInOptions gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
.requestEmail()
.build();
mGoogleApiClient = new GoogleApiClient.Builder(context)
.enableAutoManage(this, this)
.addApi(Auth.GOOGLE_SIGN_IN_API, gso)
.build();
}
public static MyGoogleApi_Singleton getInstance(Context context) {
if(instance == null) {
instance = new MyGoogleApi_Singleton(context);
}
return instance;
}
//methods SingIn,SignOut and Revoke
public void Login(GoogleApiClient bGoogleApiClient){
}
public void Logout(){
if(mGoogleApiClient.isConnected()) {
Auth.GoogleSignInApi.signOut(mGoogleApiClient).setResultCallback(
new ResultCallback<Status>() {
@Override
public void onResult(Status status) {
Log.d("LOGOUT-RESULT","LOGOUT");
}
});
}
}
public void Revoke() {
if ((mGoogleApiClient.isConnected())) {
Auth.GoogleSignInApi.revokeAccess(mGoogleApiClient).setResultCallback(
new ResultCallback<Status>() {
@Override
public void onResult(Status status) {
Log.d("REVOKE-RESULT","REVOKE");
}
});
}
}
@Override
public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {
}
}
这是索引的代码activity
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.util.Log;
import android.view.View;
import android.support.design.widget.NavigationView;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.ImageView;
import android.widget.TextView;
import com.bumptech.glide.Glide;
import com.google.android.gms.auth.api.Auth;
import com.google.android.gms.auth.api.signin.GoogleSignInOptions;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.common.api.ResultCallback;
import com.google.android.gms.common.api.Status;
import com.google.android.gms.tasks.OnCompleteListener;
import com.google.android.gms.tasks.Task;
import java.util.ArrayList;
import java.util.List;
public class Index extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener {
private ImageView ivprofile;
private TextView tvname;
private TextView tvemail;
private TextView tvidnumber;
private String picprofile;
private String name;
private String idnumber;
private String email;
final List<String> profile = new ArrayList<String>();
private View headerview;
private GoogleApiClient mGoogleApiClient;
private MyGoogleApi_Singleton myGoogleApiSingleton;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_index);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
.setAction("Action", null).show();
}
});
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.addDrawerListener(toggle);
toggle.syncState();
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
//create a headerview to conect to header of left menu
headerview=navigationView.getHeaderView(0);
ivprofile=(ImageView)headerview.findViewById(R.id.imageProfile);
tvname=(TextView)headerview.findViewById(R.id.fullName);
tvemail=(TextView)headerview.findViewById(R.id.email);
tvidnumber=(TextView) headerview.findViewById(R.id.idNumber);
//Load file saved by sharedpreferences into a new arraylist
final SharedPreferences sharpref = getSharedPreferences("ProfileList",0);
String Items = sharpref.getString("ProfileList","");
String [] listItems = Items.split(",");
for (int i=0;i<listItems.length;i++){
profile.add(listItems[i]);
}
//get the profile
idnumber=profile.get(0);
name=profile.get(1);
email=profile.get(2);
picprofile=profile.get(3);
Log.d("ArrayPerfil", name+email+idnumber+picprofile);
tvname.setText(name);
tvidnumber.setText(idnumber);
tvemail.setText(email);
Glide.with(this).load(picprofile).into(ivprofile);
//get the mgoogleapiclient objet
myGoogleApiSingleton=new MyGoogleApi_Singleton();
mGoogleApiClient=myGoogleApiSingleton.get_GoogleApiClient();
@Override
public void onBackPressed() {
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else {
super.onBackPressed();
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.index, 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();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
@SuppressWarnings("StatementWithEmptyBody")
@Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
if (id == R.id.nav_camera) {
// Handle the camera action
} else if (id == R.id.nav_gallery) {
} else if (id == R.id.nav_slideshow) {
} else if (id == R.id.nav_manage) {
} else if (id == R.id.nav_share) {
} else if (id == R.id.nav_send) {
}else if (id == R.id.logout) {
myGoogleApiSingleton.getInstance(context).Logout();
goLoginScreen();
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
//method to go to login screen
private void goLoginScreen() {
Intent intent=new Intent(this,MainActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
}
}
正如你告诉我的，我创建了一个透明 Activity。我添加了 handleSignInResult 方法，因为正在调用方法 OnActivityResult.
这是代码：
public class GoogleActivity extends AppCompatActivity {
public static final int RC_SIGN_IN = 1000;
private static final String ACTION = "calling_action";
public static Intent getIntent(Context context, int action, Intent actionIntent) {
Intent i = new Intent(context, GoogleActivity.class);
i.putExtra(ACTION, action);
i.putExtra(Intent.EXTRA_INTENT, actionIntent);
return i;
}
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE);
Intent actionIntent;
int action = getIntent().getIntExtra(ACTION, 0);
switch (action) {
case RC_SIGN_IN:
actionIntent = (Intent) getIntent().getExtras().get(Intent.EXTRA_INTENT);
if (actionIntent != null)
startActivityForResult(actionIntent, RC_SIGN_IN);
break;
case 0:
default:
break;
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
switch (requestCode) {
case RC_SIGN_IN:
GoogleSignInResult result = Auth.GoogleSignInApi.getSignInResultFromIntent(data);
handleSignInResult(result);
finish();
return;
}
}
private void handleSignInResult(GoogleSignInResult result)
{
if (result.isSuccess())
{
// Signed in successfully
Log.d("SIGNIN", "YOU ARE LOG IN");
} else
{
// Signed out,
Log.d("SIGNIN", "YOU ARE NOT LOG IN");
}
}
}
我等你的帮助！
谢谢！
这不是一个坏主意，事实上这是你应该做的。如果你想处理来自 Google Auth 的所有动作和事件，最简单、优雅、可重用和可测试的方法是将这个逻辑包装在一个或多个专用于它的类中。
如果您的操作很少，您可以将它们全部封装在一个包装中 class。例如，您可以创建一个 class GoogleSingInWrapper 并使用 Singleton 模式来确保整个应用程序中只有一个实例。
public class GoogleSingInWrapper {
private static GoogleSingInWrapper instance;
private GoogleApiClient mGoogleApiClient;
private GoogleSingainWrapper() {
// Private constructor to deny the creation of this object through the constructor and prevent creating more then one instance
mGoogleApiClient = /*create your client here*/;
}
public static getInstance(/*params you need*/) {
if(instance == null)
instance = new GoogleSingInWrapper (/*params*/);
return instance;
}
public void login(/*params*/) {
// Login
}
// Other methods
}
因此，要获取（如果尚不存在则创建一个实例）GoogleSingInWrapper 的实例，您使用：
GoogleSingInWrapper.gerInstance(/*params*/);
现在，如果您将所有变量和逻辑放在这个 class 中，您就可以从任何地方访问它们。 mGoogleApiClient 必须在此包装器中。
您现在可以添加您需要的所有方法，例如 login、logout 和 revoke。
并按如下方式使用：
GoogleSingInWrapper.getInstance().login(/*params*/);
GoogleSingInWrapper.getInstance().logout(/*params*/);
GoogleSingInWrapper.getInstance().revoke(/*params*/);
不应该直接使用mGoogleApiClient，应该封装在GoogleSingInWrapper.
编辑
当我说 mGoogleApiClient 在 GoogleSingInWrapper 中应该是私有的时，这意味着你不应该在 GoogleSingInWrapper class 之外访问它。如果您创建了一个 GoogleSingInWrapper 但创建了一个名为
的方法
public GoogleApiClient get_GoogleApiClient();
你的问题一直存在，因为你仍在使用这个mGoogleApiClient在所有活动中。你不想要这个，所以你想在所有活动中与这个对象解耦。
根据您的编辑，我将在此处输入更多代码，但我提供的免费代码越多，您学到的就越少。
public class GoogleSingInWrapper {
private static GoogleSingInWrapper instance;
private GoogleApiClient mGoogleApiClient;
private GoogleSingainWrapper(Context context) {
// Private constructor to deny the creation of this object through the constructor and prevent creating more then one instance
GoogleSignInOptions gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
.requestEmail()
.build();
mGoogleApiClient = new GoogleApiClient.Builder(context)
.enableAutoManage(this, this)
.addApi(Auth.GOOGLE_SIGN_IN_API, gso)
.build();
}
public static getInstance(Context context) {
if(instance == null)
instance = new GoogleSingInWrapper (/*params*/);
return instance;
}
public void login(/*params*/) {
// Login
}
// Other methods
public void logout(){
if(mGoogleApiClient.isConnected()) {
Auth.GoogleSignInApi.signOut(mGoogleApiClient).setResultCallback(
new ResultCallback<Status>() {
@Override
public void onResult(Status status) {
Log.d("LOGOUT-RESULT","LOGOUT");
}
});
}
}
}
这应该看起来像您的 GoogleSingInWrapper。并调用例如注销方法，你应该调用如下：
if (id == R.id.logout) {
GoogleSingInWrapper.getInstance(context).logout();
goLoginScreen();
}
请注意构造函数是 Private 故意的，因为您不想调用 new GoogleSingInWrapper。如果这样做，您将创建该对象的多个实例，并且您将打破 Singleton 模式。
此外，您可能会注意到某些进程（如登录）需要 Activity，因为结果发布在 onActivityResult 中。为了将您 GoogleSingInWrapper 与所有 Activities 分离，您可以创建一个专用的 Activity 来管理所有 onActivityResults。此 activity 应该是透明的，并且对用户不可见。
您可以使用以下代码实现：
public class GoogleActivity extends AppCompatActivity {
public static final int RC_SIGN_IN = 1000;
private static final String ACTION = "calling_action";
public static Intent getIntent(Context context, int action, Intent actionIntent) {
Intent i = new Intent(context, GoogleActivity.class);
i.putExtra(ACTION, action);
i.putExtra(Intent.EXTRA_INTENT, actionIntent);
return i;
}
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE);
Intent actionIntent;
int action = getIntent().getIntExtra(ACTION, 0);
switch (action) {
case RC_SIGN_IN:
actionIntent = (Intent) getIntent().getExtras().get(Intent.EXTRA_INTENT);
if (actionIntent != null)
startActivityForResult(actionIntent, RC_SIGN_IN);
break;
case 0:
default:
break;
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
switch (requestCode) {
case RC_SIGN_IN:
GoogleSignInResult result = Auth.GoogleSignInApi.getSignInResultFromIntent(data);
handleSignInResult(result);
finish();
return;
}
}
}
然后为此Activity设置清单中的透明主题：
<activity
android:name=".data.drive.GoogleActivity"
android:theme="@style/TransparentActivity"/>
并在 values 文件夹中定义透明样式：
<style name="TransparentActivity" parent="Theme.AppCompat.Light.NoActionBar">
<item name="android:windowIsTranslucent">true</item>
<item name="android:windowBackground">@android:color/transparent</item>
<item name="android:windowContentOverlay">@null</item>
<item name="android:windowNoTitle">true</item>
<item name="android:windowIsFloating">true</item>
<item name="android:backgroundDimEnabled">false</item>
</style>
现在你必须抓住我完成的所有部分并构建你的最终产品才能让它工作。
在我的登录activity 中，我有一个 google 登录按钮用于登录。 我检查过并且工作正常。 我还有其他按钮可以注销和撤销并且也工作正常。
这是我的登录屏幕代码。
import android.app.ProgressDialog;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import com.bumptech.glide.Glide;
import com.bumptech.glide.load.engine.DiskCacheStrategy;
import com.google.android.gms.auth.api.Auth;
import com.google.android.gms.auth.api.signin.GoogleSignInAccount;
import com.google.android.gms.auth.api.signin.GoogleSignInOptions;
import com.google.android.gms.auth.api.signin.GoogleSignInResult;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.SignInButton;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.common.api.OptionalPendingResult;
import com.google.android.gms.common.api.ResultCallback;
import com.google.android.gms.common.api.Status;
import java.util.ArrayList;
import java.util.List;
public class MainActivity extends AppCompatActivity implements
View.OnClickListener,
GoogleApiClient.OnConnectionFailedListener
{
private static final String TAG = MainActivity.class.getSimpleName();
private static final int RC_SIGN_IN = 007;
private GoogleApiClient mGoogleApiClient;
private ProgressDialog mProgressDialog;
private SignInButton btnSignIn;
List<String> profile=new ArrayList<>();
private MyGoogleApi_Singleton myGoogleApi_singleton;
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btnSignIn = (SignInButton) findViewById(R.id.sign_in_button);
btnSignIn.setOnClickListener(this);
updateUI(false);
GoogleSignInOptions gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
.requestEmail()
.build();
mGoogleApiClient = new GoogleApiClient.Builder(this)
.enableAutoManage(this, this)
.addApi(Auth.GOOGLE_SIGN_IN_API, gso)
.build();
/* Customizing G+ button
btnSignIn.setSize(SignInButton.SIZE_STANDARD);
btnSignIn.setScopes(gso.getScopeArray());*/
//Create a new objet to handle in all class
myGoogleApi_singleton= new MyGoogleApi_Singleton();
myGoogleApi_singleton.getInstance(mGoogleApiClient);
}
private void signIn()
{
Intent signInIntent = Auth.GoogleSignInApi.getSignInIntent(mGoogleApiClient);
startActivityForResult(signInIntent, RC_SIGN_IN);
}
private void signOut()
{
Auth.GoogleSignInApi.signOut(mGoogleApiClient).setResultCallback(
new ResultCallback<Status>()
{
@Override
public void onResult(Status status)
{
updateUI(false);
}
});
}
private void revokeAccess()
{
Auth.GoogleSignInApi.revokeAccess(mGoogleApiClient).setResultCallback(
new ResultCallback<Status>()
{
@Override
public void onResult(Status status)
{
updateUI(false);
}
});
}
private void handleSignInResult(GoogleSignInResult result)
{
Log.d(TAG, "handleSignInResult:" + result.isSuccess());
if (result.isSuccess())
{
// Signed in successfully, show authenticated UI.
GoogleSignInAccount acct = result.getSignInAccount();
String personName = acct.getDisplayName();
String personPhotoUrl = acct.getPhotoUrl().toString();
String email = acct.getEmail();
String idnumber= acct.getId();
Log.e(TAG, "Name: " + personName + ", email: " + email
+ ", Image: " + personPhotoUrl+ ", Id Number: "+ idnumber);
//Save the data into the arraylist
profile.add(idnumber);
profile.add(personName);
profile.add(email);
profile.add(personPhotoUrl);
//save into sharedpreferences
StringBuilder stringBuilder = new StringBuilder();
for (String s:profile)
{
stringBuilder.append(s);
stringBuilder.append(",");
}
SharedPreferences sharpref = getSharedPreferences("ProfileList",0);
SharedPreferences.Editor editor = sharpref.edit();
editor.putString("ProfileList", stringBuilder.toString());
editor.commit();
goIndexScreen();
} else
{
// Signed out, show unauthenticated UI.
updateUI(false);
}
}
@Override
public void onClick(View v)
{
switch (v.getId())
{
case R.id.sign_in_button:
signIn();
break;
default:
break;
}
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data)
{
super.onActivityResult(requestCode, resultCode, data);
// Result returned from launching the Intent from GoogleSignInApi.getSignInIntent(...);
if (requestCode == RC_SIGN_IN)
{
GoogleSignInResult result = Auth.GoogleSignInApi.getSignInResultFromIntent(data);
handleSignInResult(result);
}
}
@Override
public void onStart()
{
super.onStart();
OptionalPendingResult<GoogleSignInResult> opr = Auth.GoogleSignInApi.silentSignIn(mGoogleApiClient);
if (opr.isDone())
{
// If the user's cached credentials are valid, the OptionalPendingResult will be "done"
// and the GoogleSignInResult will be available instantly.
Log.d(TAG, "Got cached sign-in");
GoogleSignInResult result = opr.get();
handleSignInResult(result);
} else
{
// If the user has not previously signed in on this device or the sign-in has expired,
// this asynchronous branch will attempt to sign in the user silently. Cross-device
// single sign-on will occur in this branch.
showProgressDialog();
opr.setResultCallback(new ResultCallback<GoogleSignInResult>()
{
@Override
public void onResult(GoogleSignInResult googleSignInResult)
{
hideProgressDialog();
handleSignInResult(googleSignInResult);
}
});
}
}
@Override
public void onConnectionFailed(@NonNull ConnectionResult connectionResult)
{
// An unresolvable error has occurred and Google APIs (including Sign-In) will not
// be available.
Log.d(TAG, "onConnectionFailed:" + connectionResult);
}
//method to show a progress dialog during the SignIn
private void showProgressDialog()
{
if (mProgressDialog == null)
{
mProgressDialog = new ProgressDialog(this);
mProgressDialog.setMessage("Loading...");
mProgressDialog.setIndeterminate(true);
}
mProgressDialog.show();
}
//method to hide the progress dialog
private void hideProgressDialog()
{
if (mProgressDialog != null && mProgressDialog.isShowing())
{
mProgressDialog.hide();
}
}
//method to show or hide the buttons
private void updateUI(boolean isSignedIn)
{
if (isSignedIn)
{
btnSignIn.setVisibility(View.GONE);
} else
{
btnSignIn.setVisibility(View.VISIBLE);
}
}
//method to go to next activity
private void goIndexScreen()
{
Intent intent=new Intent(this,Index.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
}
}
登录成功后跳转到另一个activity。 我需要从此 activity 注销，但我需要从登录 Activity 登录 mGoogleApiClient，但我不知道该怎么做。
我在我的代码中创建了一个新的 class（单例）
import com.google.android.gms.common.api.GoogleApiClient;
class MyGoogleApi_Singleton {
private static final String TAG = "GoogleApiClient";
private static MyGoogleApi_Singleton instance = null;
private static GoogleApiClient mGoogleApiClient = null;
private MyGoogleApi_Singleton(Context context) {
GoogleSignInOptions gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
.requestEmail()
.build();
mGoogleApiClient = new GoogleApiClient.Builder(context)
.enableAutoManage(this, this)
.addApi(Auth.GOOGLE_SIGN_IN_API, gso)
.build();
}
public static MyGoogleApi_Singleton getInstance(Context context) {
if(instance == null) {
instance = new MyGoogleApi_Singleton(context);
}
return instance;
}
//methods SingIn,SignOut and Revoke
public void Login(GoogleApiClient bGoogleApiClient){
}
public void Logout(){
if(mGoogleApiClient.isConnected()) {
Auth.GoogleSignInApi.signOut(mGoogleApiClient).setResultCallback(
new ResultCallback<Status>() {
@Override
public void onResult(Status status) {
Log.d("LOGOUT-RESULT","LOGOUT");
}
});
}
}
public void Revoke() {
if ((mGoogleApiClient.isConnected())) {
Auth.GoogleSignInApi.revokeAccess(mGoogleApiClient).setResultCallback(
new ResultCallback<Status>() {
@Override
public void onResult(Status status) {
Log.d("REVOKE-RESULT","REVOKE");
}
});
}
}
@Override
public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {
}
}
这是索引的代码activity
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.util.Log;
import android.view.View;
import android.support.design.widget.NavigationView;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.ImageView;
import android.widget.TextView;
import com.bumptech.glide.Glide;
import com.google.android.gms.auth.api.Auth;
import com.google.android.gms.auth.api.signin.GoogleSignInOptions;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.common.api.ResultCallback;
import com.google.android.gms.common.api.Status;
import com.google.android.gms.tasks.OnCompleteListener;
import com.google.android.gms.tasks.Task;
import java.util.ArrayList;
import java.util.List;
public class Index extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener {
private ImageView ivprofile;
private TextView tvname;
private TextView tvemail;
private TextView tvidnumber;
private String picprofile;
private String name;
private String idnumber;
private String email;
final List<String> profile = new ArrayList<String>();
private View headerview;
private GoogleApiClient mGoogleApiClient;
private MyGoogleApi_Singleton myGoogleApiSingleton;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_index);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
.setAction("Action", null).show();
}
});
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.addDrawerListener(toggle);
toggle.syncState();
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
//create a headerview to conect to header of left menu
headerview=navigationView.getHeaderView(0);
ivprofile=(ImageView)headerview.findViewById(R.id.imageProfile);
tvname=(TextView)headerview.findViewById(R.id.fullName);
tvemail=(TextView)headerview.findViewById(R.id.email);
tvidnumber=(TextView) headerview.findViewById(R.id.idNumber);
//Load file saved by sharedpreferences into a new arraylist
final SharedPreferences sharpref = getSharedPreferences("ProfileList",0);
String Items = sharpref.getString("ProfileList","");
String [] listItems = Items.split(",");
for (int i=0;i<listItems.length;i++){
profile.add(listItems[i]);
}
//get the profile
idnumber=profile.get(0);
name=profile.get(1);
email=profile.get(2);
picprofile=profile.get(3);
Log.d("ArrayPerfil", name+email+idnumber+picprofile);
tvname.setText(name);
tvidnumber.setText(idnumber);
tvemail.setText(email);
Glide.with(this).load(picprofile).into(ivprofile);
//get the mgoogleapiclient objet
myGoogleApiSingleton=new MyGoogleApi_Singleton();
mGoogleApiClient=myGoogleApiSingleton.get_GoogleApiClient();
@Override
public void onBackPressed() {
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else {
super.onBackPressed();
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.index, 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();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
@SuppressWarnings("StatementWithEmptyBody")
@Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
if (id == R.id.nav_camera) {
// Handle the camera action
} else if (id == R.id.nav_gallery) {
} else if (id == R.id.nav_slideshow) {
} else if (id == R.id.nav_manage) {
} else if (id == R.id.nav_share) {
} else if (id == R.id.nav_send) {
}else if (id == R.id.logout) {
myGoogleApiSingleton.getInstance(context).Logout();
goLoginScreen();
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
//method to go to login screen
private void goLoginScreen() {
Intent intent=new Intent(this,MainActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
}
}
正如你告诉我的，我创建了一个透明 Activity。我添加了 handleSignInResult 方法，因为正在调用方法 OnActivityResult.
这是代码：
public class GoogleActivity extends AppCompatActivity {
public static final int RC_SIGN_IN = 1000;
private static final String ACTION = "calling_action";
public static Intent getIntent(Context context, int action, Intent actionIntent) {
Intent i = new Intent(context, GoogleActivity.class);
i.putExtra(ACTION, action);
i.putExtra(Intent.EXTRA_INTENT, actionIntent);
return i;
}
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE);
Intent actionIntent;
int action = getIntent().getIntExtra(ACTION, 0);
switch (action) {
case RC_SIGN_IN:
actionIntent = (Intent) getIntent().getExtras().get(Intent.EXTRA_INTENT);
if (actionIntent != null)
startActivityForResult(actionIntent, RC_SIGN_IN);
break;
case 0:
default:
break;
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
switch (requestCode) {
case RC_SIGN_IN:
GoogleSignInResult result = Auth.GoogleSignInApi.getSignInResultFromIntent(data);
handleSignInResult(result);
finish();
return;
}
}
private void handleSignInResult(GoogleSignInResult result)
{
if (result.isSuccess())
{
// Signed in successfully
Log.d("SIGNIN", "YOU ARE LOG IN");
} else
{
// Signed out,
Log.d("SIGNIN", "YOU ARE NOT LOG IN");
}
}
}
我等你的帮助！
谢谢！
这不是一个坏主意，事实上这是你应该做的。如果你想处理来自 Google Auth 的所有动作和事件，最简单、优雅、可重用和可测试的方法是将这个逻辑包装在一个或多个专用于它的类中。
如果您的操作很少，您可以将它们全部封装在一个包装中 class。例如，您可以创建一个 class GoogleSingInWrapper 并使用 Singleton 模式来确保整个应用程序中只有一个实例。
public class GoogleSingInWrapper {
private static GoogleSingInWrapper instance;
private GoogleApiClient mGoogleApiClient;
private GoogleSingainWrapper() {
// Private constructor to deny the creation of this object through the constructor and prevent creating more then one instance
mGoogleApiClient = /*create your client here*/;
}
public static getInstance(/*params you need*/) {
if(instance == null)
instance = new GoogleSingInWrapper (/*params*/);
return instance;
}
public void login(/*params*/) {
// Login
}
// Other methods
}
因此，要获取（如果尚不存在则创建一个实例）GoogleSingInWrapper 的实例，您使用：
GoogleSingInWrapper.gerInstance(/*params*/);
现在，如果您将所有变量和逻辑放在这个 class 中，您就可以从任何地方访问它们。 mGoogleApiClient 必须在此包装器中。
您现在可以添加您需要的所有方法，例如 login、logout 和 revoke。
并按如下方式使用：
GoogleSingInWrapper.getInstance().login(/*params*/);
GoogleSingInWrapper.getInstance().logout(/*params*/);
GoogleSingInWrapper.getInstance().revoke(/*params*/);
不应该直接使用mGoogleApiClient，应该封装在GoogleSingInWrapper.
编辑
当我说 mGoogleApiClient 在 GoogleSingInWrapper 中应该是私有的时，这意味着你不应该在 GoogleSingInWrapper class 之外访问它。如果您创建了一个 GoogleSingInWrapper 但创建了一个名为
public GoogleApiClient get_GoogleApiClient();
你的问题一直存在，因为你仍在使用这个mGoogleApiClient在所有活动中。你不想要这个，所以你想在所有活动中与这个对象解耦。
根据您的编辑，我将在此处输入更多代码，但我提供的免费代码越多，您学到的就越少。
public class GoogleSingInWrapper {
private static GoogleSingInWrapper instance;
private GoogleApiClient mGoogleApiClient;
private GoogleSingainWrapper(Context context) {
// Private constructor to deny the creation of this object through the constructor and prevent creating more then one instance
GoogleSignInOptions gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
.requestEmail()
.build();
mGoogleApiClient = new GoogleApiClient.Builder(context)
.enableAutoManage(this, this)
.addApi(Auth.GOOGLE_SIGN_IN_API, gso)
.build();
}
public static getInstance(Context context) {
if(instance == null)
instance = new GoogleSingInWrapper (/*params*/);
return instance;
}
public void login(/*params*/) {
// Login
}
// Other methods
public void logout(){
if(mGoogleApiClient.isConnected()) {
Auth.GoogleSignInApi.signOut(mGoogleApiClient).setResultCallback(
new ResultCallback<Status>() {
@Override
public void onResult(Status status) {
Log.d("LOGOUT-RESULT","LOGOUT");
}
});
}
}
}
这应该看起来像您的 GoogleSingInWrapper。并调用例如注销方法，你应该调用如下：
if (id == R.id.logout) {
GoogleSingInWrapper.getInstance(context).logout();
goLoginScreen();
}
请注意构造函数是 Private 故意的，因为您不想调用 new GoogleSingInWrapper。如果这样做，您将创建该对象的多个实例，并且您将打破 Singleton 模式。
此外，您可能会注意到某些进程（如登录）需要 Activity，因为结果发布在 onActivityResult 中。为了将您 GoogleSingInWrapper 与所有 Activities 分离，您可以创建一个专用的 Activity 来管理所有 onActivityResults。此 activity 应该是透明的，并且对用户不可见。
您可以使用以下代码实现：
public class GoogleActivity extends AppCompatActivity {
public static final int RC_SIGN_IN = 1000;
private static final String ACTION = "calling_action";
public static Intent getIntent(Context context, int action, Intent actionIntent) {
Intent i = new Intent(context, GoogleActivity.class);
i.putExtra(ACTION, action);
i.putExtra(Intent.EXTRA_INTENT, actionIntent);
return i;
}
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE);
Intent actionIntent;
int action = getIntent().getIntExtra(ACTION, 0);
switch (action) {
case RC_SIGN_IN:
actionIntent = (Intent) getIntent().getExtras().get(Intent.EXTRA_INTENT);
if (actionIntent != null)
startActivityForResult(actionIntent, RC_SIGN_IN);
break;
case 0:
default:
break;
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
switch (requestCode) {
case RC_SIGN_IN:
GoogleSignInResult result = Auth.GoogleSignInApi.getSignInResultFromIntent(data);
handleSignInResult(result);
finish();
return;
}
}
}
然后为此Activity设置清单中的透明主题：
<activity
android:name=".data.drive.GoogleActivity"
android:theme="@style/TransparentActivity"/>
并在 values 文件夹中定义透明样式：
<style name="TransparentActivity" parent="Theme.AppCompat.Light.NoActionBar">
<item name="android:windowIsTranslucent">true</item>
<item name="android:windowBackground">@android:color/transparent</item>
<item name="android:windowContentOverlay">@null</item>
<item name="android:windowNoTitle">true</item>
<item name="android:windowIsFloating">true</item>
<item name="android:backgroundDimEnabled">false</item>
</style>
现在你必须抓住我完成的所有部分并构建你的最终产品才能让它工作。