使用以下链接：https://developers.google.com/identity/sign-in/android/start-integrating我已将谷歌集成到我的项目中 . 代码与下面的链接相同：
public class MainActivity extends AppCompatActivity {
GoogleApiClient mGoogleApiClient;
Button btn;
int RC_SIGN_IN =100;
String TAG ="Google";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
GoogleSignInOptions gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
.requestEmail()
.build();
mGoogleApiClient = new GoogleApiClient.Builder(this)
.enableAutoManage(this /* FragmentActivity */, new GoogleApiClient.OnConnectionFailedListener() {
@Override
public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {
}
} /* OnConnectionFailedListener */)
.addApi(Auth.GOOGLE_SIGN_IN_API, gso)
.build();
SignInButton signInButton = (SignInButton) findViewById(R.id.sign_in_button);
signInButton.setSize(SignInButton.SIZE_STANDARD);
signInButton.setScopes(gso.getScopeArray());
btn =(Button)findViewById(R.id.btnSignout);
btn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
signOut();
}
});
signInButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
signIn();
}
});
}
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) {
Toast.makeText(getApplicationContext(),"Signout",Toast.LENGTH_SHORT).show();
}
});
}
@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);
// GoogleSignInResult result = Auth.GoogleSignInApi.getSignInResultFromIntent(data);
/* GoogleSignInAccount acct = result.getSignInAccount();
String personName = acct.getDisplayName();
String personEmail = acct.getEmail();
String personId = acct.getId();
Uri personPhoto = acct.getPhotoUrl();*/
}
}
private void handleSignInResult(GoogleSignInResult result) {
Log.d(TAG, "handleSignInResult:" + result.isSuccess());
if (result.isSuccess()) {
// Signed in successfully, show authenticated UI.
GoogleSignInAccount acct = result.getSignInAccount();
/* mStatusTextView.setText(getString(R.string.signed_in_fmt, acct.getDisplayName()));
updateUI(true);*/
String personName = acct.getDisplayName();
String personEmail = acct.getEmail();
Toast.makeText(getApplicationContext(),"Success "+ personName,Toast.LENGTH_SHORT).show();
} else {
// Signed out, show unauthenticated UI.
// updateUI(false);
Toast.makeText(getApplicationContext(),"Failure "+ result.getStatus(),Toast.LENGTH_SHORT).show();
}
}
}
这可以在Kitkat设备上找到，但在它显示的Android M设备上
状态{statusCode = DEVELOPER_ERROR，resolution = null}
首先，我认为可能是Json文件问题，但如果是，它应该不适用于任何设备 . 它在kitkat 4.2.2设备上运行成功，但在Android M设备上失败 . 这有什么不对吗？
在完成所有答案后，我遵循简单的代码：
GoogleSignInOptions gso = new GoogleSignInOptions.Builder（GoogleSignInOptions.DEFAULT_SIGN_IN）.requestEmail（） . build（）;
mGoogleApiClient = new GoogleApiClient.Builder(this)
.enableAutoManage(this, new GoogleApiClient.OnConnectionFailedListener() {
@Override
public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {
}
})
.addApi(Auth.GOOGLE_SIGN_IN_API, gso)
.build();
Intent signInIntent = Auth.GoogleSignInApi.getSignInIntent(mGoogleApiClient);
startActivityForResult(signInIntent, RC_SIGN_IN);
它适用于我的电子邮件ID，但当我在其他设备和不同的电子邮件上使用相同的代码时，它显示我同样的错误 . 当我试图添加server_client id时，它显示status = 12501错误 . 我还不知道代码有什么问题 .
3 回答
随着Android Marshmallow引入了Android运行时权限，因此如果您的设备的系统版本至少为6.0，则应该为用户提供此功能
在这里阅读：https://developer.android.com/training/permissions/requesting.html
要避免实现此功能，请转到
app/build.gradle并将targetSdkVersion降级为22.因此，您的build.gradle应如下所示：为了保护用户，必须在运行时对其进行授权，以便用户知道它是否与其操作相关 . 您可以在以下链接中查看完整示例：https://www.learn2crack.com/2015/10/android-marshmallow-permissions.html
在menifest.xml中添加此2权限