Question

每次从其他活动意图到LoginActivity，它都会崩溃应用程序。

错误的Logcat：

AccessibilityManager：setStateLocked：wasEnabled = false，mIsEnabled = false，wasTouchExplorationEnabled = false，mIsTouchExplorationEnabled = false，wasHighTextContrastEnabled = false，mIsHighTextContrastEnabled = false java.lang.Throwable：setStateLocked at com.example.feoit.mapmanagement.LoginActivity.onCreate（LoginActivity.java:63）

public class LoginActivity extends AppCompatActivity implements View.OnClickListener {

    EditText email, password;
    Button btnSignIn, forgotpwdbtn, btnRegister;
    private FirebaseAuth auth;


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


        email = (EditText) findViewById(R.id.email);
        password = (EditText) findViewById(R.id.password);

        btnSignIn = (Button) findViewById(R.id.btnSignIn);
        forgotpwdbtn = (Button) findViewById(R.id.forgotpwdbtn);
        btnRegister = (Button) findViewById(R.id.btnRegister);

        btnSignIn.setOnClickListener(this);
        forgotpwdbtn.setOnClickListener(this);
        btnRegister.setOnClickListener(this);

        auth = FirebaseAuth.getInstance();
    }



    public void onClick(View view) {
        switch (view.getId()) {
            case R.id.btnSignIn:
                String email1 = email.getText().toString().trim();
                String password1 = password.getText().toString().trim();
                auth.signInWithEmailAndPassword(email1, password1).addOnCompleteListener(LoginActivity.this, new OnCompleteListener<AuthResult>() {

                    @Override
                    public void onComplete(@NonNull Task<AuthResult> task) {

                        if (task.isSuccessful()) {
                            Toast.makeText(LoginActivity.this, "Authentication success", Toast.LENGTH_SHORT).show();
                            Intent mainIntent = new Intent(LoginActivity.this, MapsTrack.class);
                            startActivity(mainIntent);

                        } else {
                            Toast.makeText(LoginActivity.this, "Authentication failed." + task.getException(), Toast.LENGTH_SHORT).show();
                        }
                    }
                });
                break;
            case R.id.forgotpwdbtn:
                Intent intent = new Intent(LoginActivity.this, ForgotPasswordActivity.class);
                startActivity(intent);
                break;
            case R.id.btnRegister:
                Intent intentreg = new Intent(LoginActivity.this, Register.class);
                startActivity(intentreg);
                break;


        }
    }
}

该班的第63行是

setContentView(R.layout.activity_login);

完整的logcat错误：

AccessibilityManager：setStateLocked：wasEnabled = false，mIsEnabled = false，wasTouchExplorationEnabled = false，mIsTouchExplorationEnabled = false，wasHighTextContrastEnabled = false，mIsHighTextContrastEnabled = false java.lang.Throwable：setStateLocked 在android.view.accessibility.AccessibilityManager.setStateLocked（AccessibilityManager.java:553）在android.view.accessibility.AccessibilityManager.tryConnectToServiceLocked（AccessibilityManager.java:636）在android.view.accessibility.AccessibilityManager。（AccessibilityManager.java:226）在android.view.accessibility.AccessibilityManager.getInstance（AccessibilityManager.java:206）在android.view.View.setFlags（View.java:9920）在android.view.ViewGroup.initViewGroup（ViewGroup.java:536）在android.view.ViewGroup。（ViewGroup.java:525）在android.view.ViewGroup。（ViewGroup.java:520）在android.view.ViewGroup。（ViewGroup.java:516）在android.view.ViewGroup。（ViewGroup.java:512）在android.widget.FrameLayout。（FrameLayout.java:119）在com.android.internal.policy.impl.PhoneWindow $ DecorView。（PhoneWindow.java:2330）在com.android.internal.policy.impl.PhoneWindow.generateDecor（PhoneWindow.java:3471）在com.android.internal.policy.impl.PhoneWindow.installDecor（PhoneWindow.java:3857）在com.android.internal.policy.impl.PhoneWindow.getDecorView（PhoneWindow.java:2046）在android.support.v7.app.AppCompatDelegateImplV9.createSubDecor（AppCompatDelegateImplV9.java:367）在android.support.v7.app.AppCompatDelegateImplV9.ensureSubDecor（AppCompatDelegateImplV9.java:316）在android.support.v7.app.AppCompatDelegateImplV9.setContentView（AppCompatDelegateImplV9.java:281）在android.support.v7.app.AppCompatActivity.setContentView（AppCompatActivity.java:140）在com.example.feoit.mapmanagement.LoginActivity.onCreate（LoginActivity.java:63）在android.app.Activity.performCreate（Activity.java:6092）在android.app.Instrumentation.callActivityOnCreate（Instrumentation.java:1112）在android.app.ActivityThread.performLaunchActivity（ActivityThread.java:2514）在android.app.ActivityThread.handleLaunchActivity（ActivityThread.java:2641）在android.app.ActivityThread.access $ 800（ActivityThread.java:182）在android.app.ActivityThread $ H.handleMessage（ActivityThread.java:1515）在android.os.Handler.dispatchMessage（Handler.java:111）在android.os.Looper.loop（Looper.java:194）在android.app.ActivityThread.main（ActivityThread.java:5717） at java.lang.reflect.Method.invoke（Native Method）在java.lang.reflect.Method.invoke（Method.java:372）在com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run（ZygoteInit.java:959）在com.android.internal.os.ZygoteInit.main（ZygoteInit.java:754）

Answer 1

显然，我找到了解决方案。我错过了一个活动中的super.onStop（），这对我来说是粗心的。道歉并感谢您的所有时间！

Answer 2

这可能是您从mainActivity尝试登录活动的调用意图的方式，或者您尝试创建我通常使用的意图的方式

Intent i = new Intent(this, Page2.class); // Change to LoginActivity.class
i.putExtra("isNewUser","true"); // Optional 
startActivity(i);

您可能已经这样做了，我不确定您的代码是否包含在内。

此外，您应该在switch语句中添加一个默认大小写，它可以防止棘手的错误。

java.lang.Throwable：setStateLocked

2 个答案: