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我想在我的Android应用程序中集成谷歌加，但它显示运行时错误。整合谷歌加运行时错误
借助此链接帮助： https://developers.google.com/+/mobile/android/sign-in。
完整的logcat
01-21 13:08:22.097: W/SignInButton(1171): Sign in button not found, using placeholder instead
01-21 13:08:22.267: D/AndroidRuntime(1171): Shutting down VM
01-21 13:08:22.267: W/dalvikvm(1171): threadid=1: thread exiting with uncaught exception (group=0xb3a7cba8)
01-21 13:08:22.387: D/dalvikvm(1171): GC_FOR_ALLOC freed 100K, 6% free 3189K/3368K, paused 90ms, total 93ms
01-21 13:08:22.387: E/AndroidRuntime(1171): FATAL EXCEPTION: main
01-21 13:08:22.387: E/AndroidRuntime(1171): Process: com.example.googleplus, PID: 1171
01-21 13:08:22.387: E/AndroidRuntime(1171): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.googleplus/com.example.googleplus.MainActivity}: java.lang.NullPointerException: Null options are not permitted for this Api
01-21 13:08:22.387: E/AndroidRuntime(1171): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2184)
01-21 13:08:22.387: E/AndroidRuntime(1171): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2233)
01-21 13:08:22.387: E/AndroidRuntime(1171): at android.app.ActivityThread.access$800(ActivityThread.java:135)
01-21 13:08:22.387: E/AndroidRuntime(1171): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
01-21 13:08:22.387: E/AndroidRuntime(1171): at android.os.Handler.dispatchMessage(Handler.java:102)
01-21 13:08:22.387: E/AndroidRuntime(1171): at android.os.Looper.loop(Looper.java:136)
01-21 13:08:22.387: E/AndroidRuntime(1171): at android.app.ActivityThread.main(ActivityThread.java:5001)
01-21 13:08:22.387: E/AndroidRuntime(1171): at java.lang.reflect.Method.invokeNative(Native Method)
01-21 13:08:22.387: E/AndroidRuntime(1171): at java.lang.reflect.Method.invoke(Method.java:515)
01-21 13:08:22.387: E/AndroidRuntime(1171): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
01-21 13:08:22.387: E/AndroidRuntime(1171): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
01-21 13:08:22.387: E/AndroidRuntime(1171): at dalvik.system.NativeStart.main(Native Method)
01-21 13:08:22.387: E/AndroidRuntime(1171): Caused by: java.lang.NullPointerException: Null options are not permitted for this Api
01-21 13:08:22.387: E/AndroidRuntime(1171): at com.google.android.gms.common.internal.o.b(Unknown Source)
01-21 13:08:22.387: E/AndroidRuntime(1171): at com.google.android.gms.common.api.GoogleApiClient$Builder.addApi(Unknown Source)
01-21 13:08:22.387: E/AndroidRuntime(1171): at com.example.googleplus.MainActivity.onCreate(MainActivity.java:58)
01-21 13:08:22.387: E/AndroidRuntime(1171): at android.app.Activity.performCreate(Activity.java:5231)
01-21 13:08:22.387: E/AndroidRuntime(1171): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
01-21 13:08:22.387: E/AndroidRuntime(1171): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2148)
01-21 13:08:22.387: E/AndroidRuntime(1171): ... 11 more
01-21 13:08:26.547: I/Process(1171): Sending signal. PID: 1171 SIG: 9
主要活动
package com.example.googleplus;
import java.io.IOException;
import java.net.URI;
import java.net.URL;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.Activity;
import android.content.Intent;
import android.content.IntentSender.SendIntentException;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.os.StrictMode;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.common.api.GoogleApiClient.ConnectionCallbacks;
import com.google.android.gms.common.api.GoogleApiClient.OnConnectionFailedListener;
import com.google.android.gms.plus.Plus;
import com.google.android.gms.plus.model.people.Person;
public class MainActivity extends Activity implements ConnectionCallbacks,
OnConnectionFailedListener {
private static final int RC_SIGN_IN = 0;
private GoogleApiClient mGoogleApiClient;
private boolean mIntentInProgress;
TextView textView;
ImageView profileImage;
com.google.android.gms.common.SignInButton signInBtn;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder()
.permitAll().build();
StrictMode.setThreadPolicy(policy);
setContentView(R.layout.activity_main);
mGoogleApiClient = new GoogleApiClient.Builder(this)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this).addApi(Plus.API, null)
.addScope(Plus.SCOPE_PLUS_LOGIN).build();
textView = (TextView) findViewById(R.id.username);
profileImage = (ImageView) findViewById(R.id.profileImage);
signInBtn = (com.google.android.gms.common.SignInButton) findViewById(R.id.sign_in_button);
signInBtn.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
mGoogleApiClient.connect();
}
});
}
protected void onStart() {
super.onStart();
}
protected void onStop() {
super.onStop();
if (mGoogleApiClient.isConnected()) {
mGoogleApiClient.disconnect();
}
}
@Override
public void onConnectionFailed(ConnectionResult arg0) {
if (!mIntentInProgress && arg0.hasResolution()) {
try {
mIntentInProgress = true;
arg0.startResolutionForResult(this, 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();
}
}
// Log.e("error", "error code" + arg0.getResolution());
Toast.makeText(this, "User is onConnectionFailed!", Toast.LENGTH_LONG)
.show();
}
@Override
protected void onActivityResult(int requestCode, int responseCode,
Intent intent) {
if (requestCode == RC_SIGN_IN) {
mIntentInProgress = false;
if (!mGoogleApiClient.isConnecting()) {
mGoogleApiClient.connect();
}
}
}
@Override
public void onConnected(Bundle arg0) {
Toast.makeText(this, "User is connected!", Toast.LENGTH_LONG).show();
signInBtn.setVisibility(View.GONE);
if (Plus.PeopleApi.getCurrentPerson(mGoogleApiClient) != null) {
Person person = Plus.PeopleApi.getCurrentPerson(mGoogleApiClient);
textView.setText("Welcome : " + person.getDisplayName());
try {
JSONObject jsonObject = new JSONObject(person.getImage()
.toString());
String imageUrl = jsonObject.getString("url");
try {
URL url = new URL(imageUrl);
Bitmap bmp;
bmp = BitmapFactory.decodeStream(url.openConnection()
.getInputStream());
profileImage.setImageBitmap(bmp);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
@Override
public void onConnectionSuspended(int arg0) {
Toast.makeText(this, "User is onConnectionSuspended!",
Toast.LENGTH_LONG).show();
}
}
activity_main.xml中
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="#FFFFFF"
android:padding="20dip">
<com.google.android.gms.common.SignInButton
android:id="@+id/sign_in_button"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="30dip"
/>
<TextView
android:id="@+id/username"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#000000"
android:textSize="9pt"
android:text="" />
<ImageView
android:id="@+id/profileImage"
android:layout_width="200dp"
android:layout_height="200dp"
/>
</LinearLayout>
欢迎来到Stack Overflow！请发布完整的例外日志至少 – webo80
@ webo80，这里是我完整的LogCat –