Android 我有很多关于Firebase身份验证的红线

我在我的应用程序项目中添加了Firebase，并试图在我的应用程序中添加身份验证，但似乎效果不好

我有很多红线，我不知道发生了什么样的问题。你能帮我解决这个问题吗？

---

谢谢。

这是解决方案，将此添加到build.gradle（模块应用程序）中

问题解决。

这是我的代码

apply plugin: 'com.android.application'

android {
compileSdkVersion 25
buildToolsVersion "25.0.2"
defaultConfig {
    applicationId "com.example.kse.jackieapp"
    minSdkVersion 23
    targetSdkVersion 25
    versionCode 1
    versionName "1.0"
    testInstrumentationRunner    "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
    release {
        minifyEnabled false
        proguardFiles getDefaultProguardFile('proguard-android.txt'),  'proguard-rules.pro'
    }
}
}

dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
    exclude group: 'com.android.support', module: 'support-annotations'
})
compile 'com.android.support:appcompat-v7:25.1.0'
compile 'com.android.support:design:25.1.0'
compile 'com.google.firebase:firebase-auth:10.0.1'
compile 'com.google.firebase:firebase-core:10.0.1'
testCompile 'junit:junit:4.12'
}

apply plugin: 'com.google.gms.google-services'

---

我认为您没有在项目中添加BaseActivity。 遵循以下步骤

添加基本活动

或者用AppCompactActivity替换BaseActivity

将此添加到build.gradle（应用程序模块）-编译'com.google.firebase:firebase auth:10.0.1'

这里是完整的演示-尝试将您的项目与此进行比较

---

如果有问题，请告诉我。

请查看全明星标志

@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);
        if (result.**isSuccess**()) {
            // Google Sign In was successful, authenticate with Firebase
            GoogleSignInAccount account = result.**getSignInAccount**();
            firebaseAuthWithGoogle(account);
        } else {
            // Google Sign In failed, update UI appropriately
            // [START_EXCLUDE]
            updateUI(null);
            // [END_EXCLUDE]
        }
    }
}

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.**activity_google**);

private void firebaseAuthWithGoogle(GoogleSignInAccount acct) {
    Log.d(TAG, "firebaseAuthWithGoogle:" + acct.getId());
    // [START_EXCLUDE silent]
    showProgressDialog();
    // [END_EXCLUDE]

    AuthCredential credential = GoogleAuthProvider.getCredential(acct.getIdToken(), null);
    mAuth.signInWithCredential(credential)
            .addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
                @Override
                public void onComplete(@NonNull Task<AuthResult> task) {
                    Log.d(TAG, "signInWithCredential:onComplete:" + task.isSuccessful());

                    // If sign in fails, display a message to the user. If sign in succeeds
                    // the auth state listener will be notified and logic to handle the
                    // signed in user can be handled in the listener.
                    if (!task.isSuccessful()) {
                        Log.w(TAG, "signInWithCredential", task.getException());
                        Toast.makeText(**GoogleSignInActivity**.this, "Authentication failed.",
                                Toast.LENGTH_SHORT).show();
                    }
                    // [START_EXCLUDE]
                    hideProgressDialog();
                    // [END_EXCLUDE]
                }
            });
}

private void updateUI(FirebaseUser user) {
    hideProgressDialog();
    if (user != null) {
        mStatusTextView.setText(getString(R.string.**google_status_fmt**, user.getEmail()));
        mDetailTextView.setText(getString(R.string.**firebase_status_fmt**, user.getUid()));

        findViewById(R.id.sign_in_button).setVisibility(View.GONE);
        findViewById(R.id.sign_out_and_disconnect).setVisibility(View.VISIBLE);
    } else {
        mStatusTextView.setText(R.string.**signed_out**);
        mDetailTextView.setText(null);

        findViewById(R.id.sign_in_button).setVisibility(View.VISIBLE);
        findViewById(R.id.sign_out_and_disconnect).setVisibility(View.GONE);
    }
}

@覆盖
ActivityResult上的公共void（int请求代码、int结果代码、意图数据）{
super.onActivityResult（请求代码、结果代码、数据）；
//从GoogleSignInApi.getsigninent（…）启动Intent返回的结果；
if（requestCode==RC\u登录）{
**GoogleSignInResult**result=**Auth**.GoogleSignInApi.getSignInResultFromIntent（数据）；
如果（结果。**isSuccess**（））{
//Google登录成功，通过Firebase验证
GoogleSignInAccount账户=结果。**getSignInAccount**（）；
firebaseAuthWithGoogle（账户）；
}否则{
//Google登录失败，请适当更新UI
//[开始时不包括]
updateUI（null）；
//[完]
}
}
}
@凌驾
创建时受保护的void（Bundle savedInstanceState）{
super.onCreate（savedInstanceState）；
setContentView（R.layout.*activity_google**）；
私有void firebaseAuthWithGoogle（谷歌签名帐户）{
Log.d（标记为“firebaseAuthWithGoogle:+acct.getId（））；
//[启动\u排除静默]
showProgressDialog（）；
//[完]
AuthCredential credential=GoogleAuthProvider.getCredential（acct.getIdToken（），null）；
mAuth.SIGNWITH凭证（凭证）
.addOnCompleteListener（这是新的OnCompleteListener（）{
@凌驾
未完成的公共void（@NonNull任务）{
Log.d（标记“signInWithCredential:onComplete:+task.isSuccessful（）”）；
//如果登录失败，则向用户显示消息。如果登录成功
//将通知身份验证状态侦听器，并使用逻辑来处理
//可以在侦听器中处理已登录用户。
如果（！task.issusccessful（））{
w（标记“signInWithCredential”，task.getException（））；
Toast.makeText（**GoogleSignenActivity**。这是“身份验证失败”，
吐司。长度（短）。show（）；
}
//[开始时不包括]
hideProgressDialog（）；
//[完]
}
});
}
私有void updateUI（FirebaseUser）{
hideProgressDialog（）；
如果（用户！=null）{
mStatusTextView.setText（getString（R.string.*google_status_fmt**，user.getEmail（））；
mDetailTextView.setText（getString（R.string.*firebase_status_fmt**，user.getUid（））；
findViewById（R.id.sign_in_按钮）。设置可见性（View.GONE）；
findViewById（R.id.sign\u out\u和\u disconnect）.setVisibility（View.VISIBLE）；
}否则{
mStatusTextView.setText（R.string.*signed_out**）；
mDetailTextView.setText（null）；
findViewById（R.id.sign_in_按钮）。设置可见性（View.VISIBLE）；
findViewById（R.id.sign\u out\u和\u disconnect）.setVisibility（View.GONE）；
}
}

共享您的代码和生成。gradle（模块应用程序）您必须将BaseActivity添加到代码中，或者必须将BaseActivity替换为AppCompactActivity我添加了BaseActivity，但遇到了更多问题。我将上载无法编译我的BaseActivity中的“加载”屏幕截图。

@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);
        if (result.**isSuccess**()) {
            // Google Sign In was successful, authenticate with Firebase
            GoogleSignInAccount account = result.**getSignInAccount**();
            firebaseAuthWithGoogle(account);
        } else {
            // Google Sign In failed, update UI appropriately
            // [START_EXCLUDE]
            updateUI(null);
            // [END_EXCLUDE]
        }
    }
}

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.**activity_google**);

private void firebaseAuthWithGoogle(GoogleSignInAccount acct) {
    Log.d(TAG, "firebaseAuthWithGoogle:" + acct.getId());
    // [START_EXCLUDE silent]
    showProgressDialog();
    // [END_EXCLUDE]

    AuthCredential credential = GoogleAuthProvider.getCredential(acct.getIdToken(), null);
    mAuth.signInWithCredential(credential)
            .addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
                @Override
                public void onComplete(@NonNull Task<AuthResult> task) {
                    Log.d(TAG, "signInWithCredential:onComplete:" + task.isSuccessful());

                    // If sign in fails, display a message to the user. If sign in succeeds
                    // the auth state listener will be notified and logic to handle the
                    // signed in user can be handled in the listener.
                    if (!task.isSuccessful()) {
                        Log.w(TAG, "signInWithCredential", task.getException());
                        Toast.makeText(**GoogleSignInActivity**.this, "Authentication failed.",
                                Toast.LENGTH_SHORT).show();
                    }
                    // [START_EXCLUDE]
                    hideProgressDialog();
                    // [END_EXCLUDE]
                }
            });
}

private void updateUI(FirebaseUser user) {
    hideProgressDialog();
    if (user != null) {
        mStatusTextView.setText(getString(R.string.**google_status_fmt**, user.getEmail()));
        mDetailTextView.setText(getString(R.string.**firebase_status_fmt**, user.getUid()));

        findViewById(R.id.sign_in_button).setVisibility(View.GONE);
        findViewById(R.id.sign_out_and_disconnect).setVisibility(View.VISIBLE);
    } else {
        mStatusTextView.setText(R.string.**signed_out**);
        mDetailTextView.setText(null);

        findViewById(R.id.sign_in_button).setVisibility(View.VISIBLE);
        findViewById(R.id.sign_out_and_disconnect).setVisibility(View.GONE);
    }
}