android.widget.CompoundButton#toggle ( )源码实例Demo

/**
 * Called by R.id.shareViaLinkExpirationSwitch to set or clear the expiration date.
 *
 * @param switchView    {@link Switch} toggled by the user, R.id.shareViaLinkExpirationSwitch
 * @param isChecked     New switch state.
 */
@Override
public void onCheckedChanged(CompoundButton switchView, boolean isChecked) {
    if (!isResumed()) {
        // very important, setCheched(...) is called automatically during
        // Fragment recreation on device rotations
        return;
    }
    if (isChecked) {
        ExpirationDatePickerDialogFragment dialog =
                ExpirationDatePickerDialogFragment.newInstance(mFile, -1);
        dialog.show(
                getActivity().getSupportFragmentManager(),
                ExpirationDatePickerDialogFragment.DATE_PICKER_DIALOG
        );

    } else {
        ((FileActivity) getActivity()).getFileOperationsHelper().
                setExpirationDateToShareViaLink(mFile, -1);
    }

    // undo the toggle to grant the view will be correct if the dialog is cancelled
    switchView.setOnCheckedChangeListener(null);
    switchView.toggle();
    switchView.setOnCheckedChangeListener(mOnExpirationDateInteractionListener);
}
 

/**
 * Called by R.id.shareViaLinkPasswordSwitch to set or clear the password.
 *
 * @param switchView    {@link Switch} toggled by the user, R.id.shareViaLinkPasswordSwitch
 * @param isChecked     New switch state.
 */
@Override
public void onCheckedChanged(CompoundButton switchView, boolean isChecked) {
    if (!isResumed()) {
        // very important, setCheched(...) is called automatically during
        // Fragment recreation on device rotations
        return;
    }
    if (isChecked) {
        ((FileActivity) getActivity()).getFileOperationsHelper().
                requestPasswordForShareViaLink(mFile, false);
    } else {
        ((FileActivity) getActivity()).getFileOperationsHelper().
                setPasswordToShareViaLink(mFile, "");   // "" clears
    }

    // undo the toggle to grant the view will be correct if the dialog is cancelled
    switchView.setOnCheckedChangeListener(null);
    switchView.toggle();
    switchView.setOnCheckedChangeListener(mOnPasswordInteractionListener);
}
 

/**
 * Called by R.id.shareViaLinkSectionSwitch to create or delete a public link.
 *
 * @param switchView    {@link Switch} toggled by the user, R.id.shareViaLinkSectionSwitch
 * @param isChecked     New switch state.
 */
@Override
public void onCheckedChanged(CompoundButton switchView, boolean isChecked) {
    if (!isResumed()) {
        // very important, setCheched(...) is called automatically during
        // Fragment recreation on device rotations
        return;
    }
    if (isChecked) {
        if (mCapabilities != null &&
                mCapabilities.getFilesSharingPublicPasswordEnforced().isTrue()) {
            // password enforced by server, request to the user before trying to create
            ((FileActivity) getActivity()).getFileOperationsHelper().
                    requestPasswordForShareViaLink(mFile, true);

        } else {
            // create without password if not enforced by server or we don't know if enforced;
            ((FileActivity) getActivity()).getFileOperationsHelper().
                    shareFileViaLink(mFile, null);

            // FileActivtiy#onCreateShareViaLinkOperationFinish still handles the guess of enforcement
            // for server in versions previous to OwnCloudVersion#MINIMUM_VERSION_CAPABILITIES_API
        }

    } else {
        ((FileActivity) getActivity()).getFileOperationsHelper().
                unshareFileViaLink(mFile);
    }

    // undo the toggle to grant the view will be correct if any intermediate dialog is cancelled or
    // the create/delete operation fails
    switchView.setOnCheckedChangeListener(null);
    switchView.toggle();
    switchView.setOnCheckedChangeListener(mOnShareViaLinkSwitchCheckedChangeListener);
}
 

/**
 * Toggle value of received {@link CompoundButton} granting that its change listener is not called.
 *
 * @param compound      {@link CompoundButton} (switch or checkBox) to toggle without reporting to
 *                      the change listener
 */
private void toggleDisablingListener(CompoundButton compound) {
    compound.setOnCheckedChangeListener(null);
    compound.toggle();
    compound.setOnCheckedChangeListener(this);
}