Android facebook登录按钮崩溃
我从和开始做了所有的步骤 我的活动:Android facebook登录按钮崩溃,android,facebook,Android,Facebook,我从和开始做了所有的步骤 我的活动: public class MainActivity extends Activity { LoginButton loginButton; CallbackManager callbackManager; protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); requestWi
public class MainActivity extends Activity {
LoginButton loginButton;
CallbackManager callbackManager;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN);
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
FacebookSdk.sdkInitialize(getApplicationContext());
setContentView(R.layout.activity_main);
callbackManager = CallbackManager.Factory.create();
loginButton = (LoginButton) findViewById(R.id.login_button);
loginButton.setReadPermissions("user_friends");
// Callback registration
loginButton.registerCallback(callbackManager, new FacebookCallback<LoginResult>() {
@Override
public void onSuccess(LoginResult loginResult) {
// App code
}
@Override
public void onCancel() {
// App code
}
@Override
public void onError(FacebookException exception) {
// App code
}
});
final Button but_nova_hra = (Button) findViewById(R.id.nova_hra);
but_nova_hra.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
Intent obrazovkaHry = new Intent(getApplicationContext(), HraActivity.class);
startActivity(obrazovkaHry);
}
});
final Button but_koniec = (Button) findViewById(R.id.konec);
but_koniec.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
finish();
}
});
}
}
公共类MainActivity扩展活动{
登录按钮登录按钮;
CallbackManager CallbackManager;
创建时受保护的void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
requestWindowFeature(窗口。功能\u无\u标题);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_全屏,WindowManager.LayoutParams.FLAG_全屏);
setRequestedOrientation(ActivityInfo.SCREEN\u ORIENTATION\u Picture);
sdkinInitialize(getApplicationContext());
setContentView(R.layout.activity_main);
callbackManager=callbackManager.Factory.create();
loginButton=(loginButton)findviewbyd(R.id.login_按钮);
setReadPermissions(“用户朋友”);
//回调注册
registerCallback(callbackManager,newfacebookcallback()){
@凌驾
成功时公共无效(LoginResult LoginResult){
//应用程序代码
}
@凌驾
公开作废{
//应用程序代码
}
@凌驾
public void onError(facebook异常){
//应用程序代码
}
});
最后一个按钮,但(按钮)findViewById(R.id.nova_hra);
但是_nova_hra.setOnClickListener(新的OnClickListener(){
公共void onClick(视图v){
Intent obrazovkaHry=newintent(getApplicationContext(),HraActivity.class);
星触觉(obrazovkaHry);
}
});
最后一个按钮,但_koniec=(按钮)findViewById(R.id.konec);
但是_konice.setOnClickListener(新的OnClickListener(){
公共void onClick(视图v){
完成();
}
});
}
}
应用程序在启动时崩溃
找不到从方法com.facebook.internal.Validate.hasFacebookActivity引用的com.facebook.FacebookActivity
问题出在哪里?该错误的答案是在oncreate Constructor重复的问题之后,在设置内容视图之前初始化facebook SDK行:您能详细说明您的答案吗?