我尝试了很多网站进行 google+ 登录集成，但即使是 Developers.android 代码也有很多错误。于是我看了一个学酱的视频：这是 Learn Sauce 的 G+ 集成视频教程的链接 https://www.youtube.com/watch?v=wcbMsd7dmYg我使用了所附 pdf 中给出的确切代码，但我遇到了巨大的错误。由于我是编程领域的新手，请帮助我。我附上以下代码：请不要标记这个问题的声誉，因为我是这个领域的新手！请 ！
Build.gradle（模块应用程序）
apply plugin: 'com.android.application'
android {
compileSdkVersion 23
buildToolsVersion "23.0.2"
defaultConfig {
applicationId "com.example.user.noteapp"
minSdkVersion 14
targetSdkVersion 23
versionCode 1
versionName "1.0"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
testCompile 'junit:junit:4.12'
compile 'com.android.support:appcompat-v7:23.2.0'
compile 'com.google.android.gms:play-services:6.5.87'
compile 'de.hdodenhof:circleimageview:1.3.0'
}
清单文件
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.user.noteapp">
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
<uses-permission android:name="android.permission.USE_CREDENTIALS" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<meta-data
android:name="com.google.android.gms.version"
android:value="@integer/google_play_services_version" />
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
字符串.xml
<resources>
<string name="app_name">Note App</string>
<string name="action_settings">Settings</string>
<!-- Button text -->
<string name="btn_logout_from_google">Logout from Google</string>
<string name="btn_revoke_access">Revoke Access</string>
</resources>
活动主文件
<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:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:paddingBottom="@dimen/activity_vertical_margin"
tools:context=".MainActivity">
<com.google.android.gms.common.SignInButton
android:id="@+id/btn_sign_in"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="20dp"/>
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="@+id/profile_layout"
android:layout_below="@+id/btn_sign_in"
android:layout_alignParentLeft="true"
android:visibility="gone"
android:layout_alignParentStart="true">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="Profile Details"
android:id="@+id/textView"
android:textStyle="bold"
android:textSize="18sp"
android:layout_centerHorizontal="true"
android:layout_alignParentTop="true"
/>
<ImageView
android:layout_width="150dp"
android:layout_height="150dp"
android:id="@+id/imageView_profile_image"
android:layout_below="@+id/textView"
android:layout_alignLeft="@+id/textView"
android:layout_alignStart="@+id/textView"
android:layout_marginTop="39dp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Name"
android:id="@+id/textView_name"
android:textAppearance="?android:attr/textAppearanceLarge"
android:layout_below="@+id/imageView_profile_image"
android:layout_centerHorizontal="true"
android:layout_marginTop="40dp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="Email"
android:id="@+id/textView_email"
android:layout_below="@+id/textView_name"
android:layout_centerHorizontal="true"
android:layout_marginTop="25dp" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="LogOut"
android:id="@+id/button_logout"
android:layout_below="@+id/textView_email"
android:layout_centerHorizontal="true"
android:layout_marginTop="24dp" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Revoke"
android:id="@+id/button_revoke"
android:layout_marginTop="10dp"
android:layout_below="@+id/button_logout"
android:layout_centerHorizontal="true" />
</RelativeLayout>
</RelativeLayout>
MainActivity.java
package com.example.user.noteapp;
import android.content.Intent;
import android.content.IntentSender;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.AsyncTask;
import android.service.carrier.CarrierMessagingService;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.RelativeLayout;
import android.widget.TextView;
import android.widget.Toast;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GooglePlayServicesUtil;
import com.google.android.gms.common.SignInButton;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.plus.Plus;
import com.google.android.gms.plus.model.people.Person;
import java.io.InputStream;
public class MainActivity extends AppCompatActivity {
private GoogleApiClient mGoogleApiClient;
private SignInButton btnSignIn;
private Button button_revoke,button_logout;
private TextView textView_name, textView_email;
private RelativeLayout profile_layout;
private ImageView imageView_profile_image;
private boolean mIntentInProgress;
private boolean mSignInClicked;
private ConnectionResult mConnectionResult;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btnSignIn = (SignInButton) findViewById(R.id.btn_sign_in);
btnSignIn.setOnClickListener(this);
button_revoke = (Button) findViewById(R.id.button_revoke);
button_revoke.setOnClickListener(this);
button_logout = (Button) findViewById(R.id.button_logout);
button_logout.setOnClickListener(this);
imageView_profile_image = (ImageView) findViewById(R.id.imageView_profile_image);
textView_name = (TextView) findViewById(R.id.textView_name);
textView_email = (TextView) findViewById(R.id.textView_email);
profile_layout = (RelativeLayout) findViewById(R.id.profile_layout);
// Initializing google plus api client
mGoogleApiClient = new GoogleApiClient.Builder(this)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this).addApi(Plus.API)
.addScope(Plus.SCOPE_PLUS_LOGIN).build();
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.btn_sign_in:
// Signin button clicked
signInWithGplus();
break;
case R.id.button_logout:
// logout button clicked
signOutFromGplus();
break;
case R.id.button_revoke:
// revoke button clicked
revokeGplusAccess();
break;
}
}
protected void onStart() {
super.onStart();
mGoogleApiClient.connect();
}
protected void onStop() {
super.onStop();
if (mGoogleApiClient.isConnected()) {
mGoogleApiClient.disconnect();
}
}
@Override
public void onConnected(Bundle bundle) {
mSignInClicked = false;
Toast.makeText(this, "User is connected!", Toast.LENGTH_LONG).show();
// Get user's information
getProfileInformation();
// Update the UI after signin
updateUI(true);
}
@Override
public void onConnectionSuspended(int i) {
mGoogleApiClient.connect();
updateUI(false);
}
@Override
public void onConnectionFailed(ConnectionResult connectionResult) {
if (!connectionResult.hasResolution()) {
GooglePlayServicesUtil.getErrorDialog(connectionResult.getErrorCode(), this,
0).show();
return;
}
if (!mIntentInProgress) {
// Store the ConnectionResult for later usage
mConnectionResult = connectionResult;
if (mSignInClicked) {
// The user has already clicked 'sign-in' so we attempt to
// resolve all
// errors until the user is signed in, or they cancel.
resolveSignInError();
}
}
}
private static final int GOOGLE_SIGIN = 100;
private void resolveSignInError() {
if (mConnectionResult.hasResolution()) {
try {
mIntentInProgress = true;
mConnectionResult.startResolutionForResult(this, GOOGLE_SIGIN);
}
catch (IntentSender.SendIntentException e) {
mIntentInProgress = false;
mGoogleApiClient.connect();
}
}
}
@Override
protected void onActivityResult(int requestCode, int responseCode,
Intent intent) {
if (requestCode == GOOGLE_SIGIN) {
if (responseCode != RESULT_OK) {
mSignInClicked = false;
}
mIntentInProgress = false;
if (!mGoogleApiClient.isConnecting()) {
mGoogleApiClient.connect();
}
}
}
private void updateUI(boolean isSignedIn) {
if (isSignedIn) {
btnSignIn.setVisibility(View.GONE);
profile_layout.setVisibility(View.VISIBLE);
} else {
btnSignIn.setVisibility(View.VISIBLE);
profile_layout.setVisibility(View.GONE);
}
}
private void getProfileInformation() {
try {
if (Plus.PeopleApi.getCurrentPerson(mGoogleApiClient) != null) {
Person currentPerson = Plus.PeopleApi
.getCurrentPerson(mGoogleApiClient);
String personName = currentPerson.getDisplayName();
String personPhotoUrl = currentPerson.getImage().getUrl();
String personGooglePlusProfile = currentPerson.getUrl();
String email = Plus.AccountApi.getAccountName(mGoogleApiClient);
textView_name.setText(personName);
textView_email.setText(email);
// by default the profile url gives 50x50 px image only
// we can replace the value with whatever dimension we want by
// replacing sz=X
personPhotoUrl = personPhotoUrl.substring(0,
personPhotoUrl.length() - 2)
+ 400;
new LoadProfileImage(imageView_profile_image).execute(personPhotoUrl);
} else {
Toast.makeText(getApplicationContext(),
"Person information is null", Toast.LENGTH_LONG).show();
}
}
catch (Exception e) {
e.printStackTrace();
}
}
private void signInWithGplus() {
if (!mGoogleApiClient.isConnecting()) {
mSignInClicked = true;
resolveSignInError();
}
}
/**
* Sign-out from google
* */
private void signOutFromGplus() {
if (mGoogleApiClient.isConnected()) {
Plus.AccountApi.clearDefaultAccount(mGoogleApiClient);
mGoogleApiClient.disconnect();
mGoogleApiClient.connect();
updateUI(false);
}
}
/**
* Revoking access from google
* */
private void revokeGplusAccess() {
if (mGoogleApiClient.isConnected()) {
Plus.AccountApi.clearDefaultAccount(mGoogleApiClient);
Plus.AccountApi.revokeAccessAndDisconnect(mGoogleApiClient)
.setResultCallback(new CarrierMessagingService.ResultCallback<AsyncTask.Status>() {
@Override
public void onResult(AsyncTask.Status arg0) {
Log.e("pavan", "User access revoked!");
mGoogleApiClient.connect();
updateUI(false);
}
});
}
}
/**
* Background Async task to load user profile picture from url
* */
private class LoadProfileImage extends AsyncTask<String, Void, Bitmap> {
ImageView bmImage;
public LoadProfileImage(ImageView bmImage) {
this.bmImage = bmImage;
}
protected Bitmap doInBackground(String... urls) {
String urldisplay = urls[0];
Bitmap mIcon11 = null;
try {
InputStream in = new java.net.URL(urldisplay).openStream();
mIcon11 = BitmapFactory.decodeStream(in);
} catch (Exception e) {
Log.e("Error", e.getMessage());
e.printStackTrace();
}
return mIcon11;
}
protected void onPostExecute(Bitmap result) {
bmImage.setImageBitmap(result);
}
}
}
Errors:
Error:(44, 18) error: no suitable method found for setOnClickListener(MainActivity)
method View.setOnClickListener(OnClickListener) is not applicable
(argument mismatch; MainActivity cannot be converted to OnClickListener)
method SignInButton.setOnClickListener(OnClickListener) is not applicable
(argument mismatch; MainActivity cannot be converted to OnClickListener)
Error:(95, 5) error: method does not override or implement a method from a supertype
Error:(204, 103) error: <anonymous com.example.user.noteapp.MainActivity$1> is not abstract and does not override abstract method onReceiveResult(Status) in ResultCallback
Error:(100, 5) error: method does not override or implement a method from a supertype
Error:(55, 41) error: incompatible types: MainActivity cannot be converted to ConnectionCallbacks
Error:(86, 5) error: method does not override or implement a method from a supertype
Error:(48, 42) error: incompatible types: MainActivity cannot be converted to OnClickListener
Error:(46, 42) error: incompatible types: MainActivity cannot be converted to OnClickListener
Error:(59, 5) error: method does not override or implement a method from a supertype
Error:(205, 25) error: method does not override or implement a method from a supertype
Error:(204, 40) error: incompatible types: <anonymous android.service.carrier.CarrierMessagingService.ResultCallback<android.os.AsyncTask.Status>> cannot be converted to com.google.android.gms.common.api.ResultCallback<com.google.android.gms.common.api.Status>
Note: Some messages have been simplified; recompile with -Xdiags:verbose to get full output
Error:Execution failed for task ':app:compileDebugJavaWithJavac'.
> Compilation failed; see the compiler error output for details.
