优化应用以支持自动填充

val password = findViewById<EditText>(R.id.password)
password.setAutofillHints(View.AUTOFILL_HINT_PASSWORD)

EditText password = findViewById(R.id.password);
password.setAutofillHints(View.AUTOFILL_HINT_PASSWORD);

val captcha = findViewById<TextView>(R.id.captcha)
captcha.setImportantForAutofill(View.IMPORTANT_FOR_AUTOFILL_NO)

TextView captcha = findViewById(R.id.captcha);
captcha.setImportantForAutofill(View.IMPORTANT_FOR_AUTOFILL_NO);

fun eventHandler(view: View) {
    val afm = requireContext().getSystemService(AutofillManager::class.java)
    afm?.requestAutofill(view)
}

public void eventHandler(View view) {
    AutofillManager afm = context.getSystemService(AutofillManager.class);
    if (afm != null) {
        afm.requestAutofill(view);
    }
}

override fun onProvideAutofillStructure(structure: ViewStructure, flags: Int) {
    super.onProvideAutofillStructure(structure, flags)

    structure.setDataIsSensitive(false)
}

@Override
public void onProvideAutofillStructure(ViewStructure structure, int flags) {
    super.onProvideAutofillStructure(structure, flags);

    structure.setDataIsSensitive(false);
}

override fun onProvideAutofillVirtualStructure(structure: ViewStructure, flags: Int) {

    super.onProvideAutofillVirtualStructure(structure, flags)

    // Create a new child in the virtual structure.
    structure.addChildCount(1)
    val child = structure.newChild(childIndex)

    // Set the autofill ID for the child.
    child.setAutofillId(structure.autofillId!!, childVirtualId)

    // Populate the child by providing properties such as value and type.
    child.setAutofillValue(childAutofillValue)
    child.setAutofillType(childAutofillType)

    // Some children can provide a list of values, such as when the child is
    // a spinner.
    val childAutofillOptions = arrayOf<CharSequence>("option1", "option2")
    child.setAutofillOptions(childAutofillOptions)

    // Just like other types of views, mark the data as sensitive when
    // appropriate.
    val sensitive = !contentIsSetFromResources()
    child.setDataIsSensitive(sensitive)
}

@Override
public void onProvideAutofillVirtualStructure(ViewStructure structure, int flags) {

    super.onProvideAutofillVirtualStructure(structure, flags);

    // Create a new child in the virtual structure.
    structure.addChildCount(1);
    ViewStructure child =
            structure.newChild(childIndex);

    // Set the autofill ID for the child.
    child.setAutofillId(structure.getAutofillId(), childVirtualId);

    // Populate the child by providing properties such as value and type.
    child.setAutofillValue(childAutofillValue);
    child.setAutofillType(childAutofillType);

    // Some children can provide a list of values, such as when the child is
    // a spinner.
    CharSequence childAutofillOptions[] = { "option1", "option2" };
    child.setAutofillOptions(childAutofillOptions);

    // Just like other types of views, mark the data as sensitive when
    // appropriate.
    boolean sensitive = !contentIsSetFromResources();
    child.setDataIsSensitive(sensitive);
}

val afm = context.getSystemService(AutofillManager::class.java)

afm?.registerCallback(object : AutofillManager.AutofillCallback() {
    // For virtual structures, override
    // onAutofillEvent(View view, int childId, int event) instead.
    override fun onAutofillEvent(view: View, event: Int) {
        super.onAutofillEvent(view, event)
        when (event) {
            EVENT_INPUT_HIDDEN -> {
                // The autofill affordance associated with the view was hidden.
            }
            EVENT_INPUT_SHOWN -> {
                // The autofill affordance associated with the view was shown.
            }
            EVENT_INPUT_UNAVAILABLE -> {
                // Autofill isn't available.
            }
        }

    }
})

AutofillManager afm = getContext().getSystemService(AutofillManager.class);

afm.registerCallback(new AutofillManager.AutofillCallback() {
    // For virtual structures, override
    // onAutofillEvent(View view, int childId, int event) instead.
    @Override
    public void onAutofillEvent(@NonNull View view, int event) {
        super.onAutofillEvent(view, event);
        switch (event) {
            case EVENT_INPUT_HIDDEN:
                // The autofill affordance associated with the view was hidden.
                break;
            case EVENT_INPUT_SHOWN:
                // The autofill affordance associated with the view was shown.
                break;
            case EVENT_INPUT_UNAVAILABLE:
                // Autofill isn't available.
                break;
        }
    }
});

class MyDialog(context: Context) : Dialog(context) {

    // Used to store the dialog window parameters.
    private var token: IBinder? = null

    private val isDialogResizedWorkaroundRequired: Boolean
        get() {
            if (Build.VERSION.SDK_INT != Build.VERSION_CODES.O || Build.VERSION.SDK_INT != Build.VERSION_CODES.O_MR1) {
                return false
            }
            val autofillManager = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                context.getSystemService(AutofillManager::class.java)
            } else {
                null
            }
            return autofillManager?.isEnabled ?: false
        }

    override fun onWindowAttributesChanged(params: WindowManager.LayoutParams) {
        if (params.token == null && token != null) {
            params.token = token
        }

        super.onWindowAttributesChanged(params)
    }

    override fun onAttachedToWindow() {
        if (isDialogResizedWorkaroundRequired) {
            token = ownerActivity!!.window.attributes.token
        }

        super.onAttachedToWindow()
    }

}

public class MyDialog extends Dialog {

    public MyDialog(Context context) {
        super(context);
    }

    // Used to store the dialog window parameters.
    private IBinder token;

    @Override
    public void onWindowAttributesChanged(WindowManager.LayoutParams params) {
        if (params.token == null && token != null) {
            params.token = token;
        }

        super.onWindowAttributesChanged(params);
    }

    @Override
    public void onAttachedToWindow() {
        if (isDialogResizedWorkaroundRequired()) {
            token = getOwnerActivity().getWindow().getAttributes().token;
        }

        super.onAttachedToWindow();
    }

    private boolean isDialogResizedWorkaroundRequired() {
        if (Build.VERSION.SDK_INT != Build.VERSION_CODES.O
                || Build.VERSION.SDK_INT != Build.VERSION_CODES.O_MR1) {
            return false;
        }
        AutofillManager autofillManager =
                null;
        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.M) {
            autofillManager = getContext().getSystemService(AutofillManager.class);
        }
        return autofillManager != null && autofillManager.isEnabled();
    }

}

// AutofillExtensions.kt

fun Context.isDialogResizedWorkaroundRequired(): Boolean {
    // After the issue is resolved on Android, check whether the
    // workaround is still required for the current device.
    return isAutofillAvailable()
}

fun Context.isAutofillAvailable(): Boolean {
    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) {
        // The autofill framework is available on Android 8.0
        // or higher.
        return false
    }

    val afm = getSystemService(AutofillManager::class.java)
    // Return true if autofill is supported by the device and enabled
    // for the current user.
    return afm != null && afm.isEnabled
}

public class AutofillHelper {

    public static boolean isDialogResizedWorkaroundRequired(Context context) {
        // After the issue is resolved on Android, check whether the
        // workaround is still required for the current device.
        return isAutofillAvailable(context);
    }

    public static boolean isAutofillAvailable(Context context) {
        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) {
            // The autofill framework is available on Android 8.0
            // or higher.
            return false;
        }

        AutofillManager afm = context.getSystemService(AutofillManager.class);
        // Return true if autofill is supported by the device and enabled
        // for the current user.
        return afm != null && afm.isEnabled();
    }
}