アクティビティを開くことができず、スプラッシュ画面の後に画面がちらつく

Question

私はAndroidプログラミングの初心者です。私はスプラッシュスクリーンを持っています。その後、私はアクティビティをオープンしようとしていますが、スプラッシュスクリーンの後に画面がちらつき、アクティビティが開きません。何かを見せてください。次のように私のコードは次のとおりです。

---

Splashscreen.java

public class splashscreen extends AppCompatActivity 
{ 

ImageView imageView; 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_splashscreen); 
    imageView =(ImageView)findViewById(R.id.imageView); 
    Animation animation= AnimationUtils.loadAnimation(getApplicationContext(),R.anim.slideinright); 
    imageView.setAnimation(animation); 

    animation.setAnimationListener(new Animation.AnimationListener() { 
     @Override 
     public void onAnimationStart(Animation animation) { 

     } 

     @Override 
     public void onAnimationEnd(Animation animation) { 
      finish(); 
      startActivity(new Intent(getApplicationContext(),MainActivity.class)); 

     } 

     @Override 
     public void onAnimationRepeat(Animation animation) { 

     } 
    }); 
} 
} 

---

Loginpage.java

import android.app.ProgressDialog; 
import android.content.Intent; 
import android.os.Bundle; 
import android.support.annotation.NonNull; 
import android.support.v7.app.AppCompatActivity; 
import android.text.TextUtils; 
import android.view.View; 
import android.widget.Button; 
import android.widget.EditText; 
import android.widget.TextView; 
import android.widget.Toast; 
import com.facebook.CallbackManager; 
import com.facebook.FacebookCallback; 
import com.facebook.FacebookException; 
import com.facebook.FacebookSdk; 
import com.facebook.Profile; 
import com.facebook.ProfileTracker; 
import com.facebook.appevents.AppEventsLogger; 
import com.facebook.login.LoginResult; 
import com.facebook.login.widget.LoginButton; 
import com.google.android.gms.tasks.OnCompleteListener; 
import com.google.android.gms.tasks.Task; 
import com.google.firebase.auth.AuthResult; 
import com.google.firebase.auth.FirebaseAuth; 

    public class LoginActivity2 extends AppCompatActivity implements  View.OnClickListener { 

private Button loginbuttonRegister; 
private EditText logineditTextEmail; 
private EditText logineditTextPassword; 
private TextView textViewLogin; 
private ProgressDialog progressDialog; 
private FirebaseAuth firebaseAuth; 

private LoginButton loginButton; 
private CallbackManager callbackManager; 
private Profile profile; 


@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_login2); 
    progressDialog = new ProgressDialog(this); 
    firebaseAuth = FirebaseAuth.getInstance(); 
    if(firebaseAuth.getCurrentUser() != null){ 

     //display navigation activity 
     finish(); 
     startActivity(new Intent(getApplicationContext(),MainActivity.class)); 
    } 
    loginbuttonRegister = (Button) findViewById(R.id.loginbuttonRegister); 
    logineditTextEmail = (EditText) findViewById(R.id.logineditTextEmail); 
    logineditTextPassword = (EditText) findViewById(R.id.logineditTextPassword); 
    textViewLogin =(TextView) findViewById(R.id.textViewLogin); 
    loginbuttonRegister.setOnClickListener(new View.OnClickListener(){ 

     public void onClick(View v) { 
      loginbuttonRegister = (Button)   findViewById(R.id.loginbuttonRegister); 
      if(v == loginbuttonRegister) 
      { 
       userLogin(); 
      } 

     } 



    }); 
    textViewLogin.setOnClickListener(this); 




    //Initializing Facebook Sdk. 
    FacebookSdk.sdkInitialize(getApplicationContext()); 
    AppEventsLogger.activateApp(this); 
    //intialize callback manager 
    callbackManager = CallbackManager.Factory.create(); 
    //initializing facebook login button 

    loginButton = (LoginButton) findViewById(R.id.login_button); 
    loginButton.setOnClickListener(new View.OnClickListener() { 
     public void onClick(View v) { 
      // Perform action on click 

      loginButton = (LoginButton)findViewById(R.id.login_button); 
      loginButton.registerCallback(callbackManager, new FacebookCallback<LoginResult>() { 
       ProfileTracker profileTracker; 
       @Override 
       public void onSuccess(LoginResult loginResult) { 
        Toast.makeText(LoginActivity2.this,"Succesfully Logged In",Toast.LENGTH_SHORT).show(); 
        profile = Profile.getCurrentProfile(); 
        //check profile is fetched or not, if not then wait for sometime 
        // to load your profile using profile tracker 
        if(profile == null){ 
         profileTracker = new ProfileTracker() { 
          @Override 
          protected void onCurrentProfileChanged(Profile profile, Profile profile1) { 
           if(profile1 != null){ 
            startActivity(new Intent(LoginActivity2.this,MainActivity.class)); 
           } 
          } 
         }; 
        }else{ 
         startActivity(new Intent(LoginActivity2.this,MainActivity.class)); 
        } 
       } 

       @Override 
       public void onCancel() { 

       } 

       @Override 
       public void onError(FacebookException e) { 

       } 
      }); 
     } 
    }); 





    } 

@Override 
protected void onActivityResult(int requestCode, int resultCode, Intent data) { 
    super.onActivityResult(requestCode, resultCode, data); 
    callbackManager.onActivityResult(requestCode,resultCode,data); 
} 





private void userLogin(){ 
    String email = logineditTextEmail.getText().toString().trim(); 
    String password = logineditTextPassword.getText().toString().trim(); 

    if(TextUtils.isEmpty(email)){ 
     //mail empty 

     Toast.makeText(this, "Please enter email!", Toast.LENGTH_SHORT).show(); 
     return; 
    } 

    if(TextUtils.isEmpty(password)){ 
     Toast.makeText(this, "Please enter Password!", Toast.LENGTH_SHORT).show(); 
     return; 
    } 
    //if valid then shows progressbar 
    progressDialog.setMessage("Loggin in...!"); 

    progressDialog.show(); 
    firebaseAuth.createUserWithEmailAndPassword(email,password).addOnCompleteListener(this, new OnCompleteListener<AuthResult>() { 
     @Override 
     public void onComplete(@NonNull Task<AuthResult> task) { 
      if(task.isSuccessful()) 
      { progressDialog.dismiss(); 
       //start anvigation activity 
       finish(); 
       startActivity(new Intent(getApplicationContext(),MainActivity.class)); 
      } 

      else {progressDialog.dismiss(); 
       Toast.makeText(LoginActivity2.this, "Failed to login! Try again.", Toast.LENGTH_SHORT).show(); 
      } 
     } 
    }); 
} 
@Override 
public void onClick(View view) { 

    if(view == textViewLogin) 
    {finish(); 
    startActivity(new Intent(this,Registeruser.class)); 
    } 
    } 
} 

---

Loginactivity.xml

<?xml version="1.0" encoding="utf-8"?> 
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
xmlns:app="http://schemas.android.com/apk/res-auto" 
xmlns:tools="http://schemas.android.com/tools" 
android:id="@+id/content_login2" 
android:layout_width="match_parent" 
android:layout_height="match_parent" 
android:paddingBottom="@dimen/activity_vertical_margin" 
android:paddingLeft="@dimen/activity_horizontal_margin" 
android:paddingRight="@dimen/activity_horizontal_margin" 
android:paddingTop="@dimen/activity_vertical_margin" 
app:layout_behavior="@string/appbar_scrolling_view_behavior" 
tools:context="com.example.dell.Swing.LoginActivity2" 
tools:showIn="@layout/activity_login2" 
android:background="@drawable/probeach"> 

<LinearLayout 
    android:id="@+id/registerlayout" 
    android:orientation="vertical" 
    android:layout_centerVertical="true" 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content"> 
    <EditText 
     android:layout_margin="10dp" 
     android:hint="Enter your E-mail" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:inputType="textEmailAddress" 
     android:id="@+id/logineditTextEmail" 
     /> 

    <EditText 
     android:layout_margin="10dp" 
     android:hint="Enter your Password" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:inputType="textPassword" 
     android:id="@+id/logineditTextPassword" /> 

    <Button 
     android:layout_margin="10dp" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:id="@+id/loginbuttonRegister" 
     android:text="Log In" 
     style="@style/Widget.AppCompat.Button.Colored" 
     android:background="@android:color/holo_red_dark" 
     android:elevation="0dp" /> 


    <TextView 
     android:textAlignment="center" 
     android:text="Not Registered? Sign up Here" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:id="@+id/textViewLogin" /> 
</LinearLayout> 

<LinearLayout 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content" 
    android:orientation="vertical" 
    android:layout_marginBottom="66dp" 
    android:layout_alignParentBottom="true" 
    android:layout_alignParentLeft="true" 
    android:layout_alignParentStart="true" 
    android:weightSum="1"> 

    <TextView 
     android:id="@+id/orview" 
     android:text="Or" 
     android:gravity="center" 
     android:textAppearance="@style/TextAppearance.AppCompat.Button" 
     android:layout_width="match_parent" 
     android:layout_weight="0.63" 
     android:layout_height="40dp" /> 

    <com.facebook.login.widget.LoginButton 
    android:layout_margin="10dp" 
    android:id="@+id/login_button" 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content" 
    android:layout_gravity="center" 
    android:layout_below="@+id/orview" 
    /> 
</LinearLayout> 

Answer 1

あなたの背景画像の解像度を確認してください、あなたはスプラッシュ後にログイン画面を表示したい

android:background="@drawable/probeach"