com.lillicoder.lib.uiwidgets.dialog.BaseDialogFragment.java Source code

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Here is the source code for com.lillicoder.lib.uiwidgets.dialog.BaseDialogFragment.java

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/**
 * Copyright 2012 Scott Weeden-Moody
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.lillicoder.lib.uiwidgets.dialog;

import android.os.Bundle;
import android.support.v4.app.DialogFragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

import com.lillicoder.lib.uiwidgets.R;

/**
 * Base class for custom {@link DialogFragment}. This class contains additional utility code
 * designed to make working with dialogs easier. This class removes all default UI framing,
 * so content is controlled by what is returned from {@link #onCreateView(LayoutInflater, ViewGroup, Bundle)}
 * while providing some basic dialog theming.
 */
public abstract class BaseDialogFragment extends DialogFragment {

    private static final String EXCEPTION_COULD_NOT_FIND_BASE_COMPONENT = "Could not find base dialog UI component. Are you sure you called setContentView()?";

    private ViewGroup _contentContainer;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        // Remove all dialog framing, we will completely style this dialog.
        this.setStyle(DialogFragment.STYLE_NO_FRAME, R.style.UiWidgets_Theme_Dialog);
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View root = inflater.inflate(R.layout.dialog_base, null);

        this._contentContainer = (ViewGroup) root.findViewById(R.id.BaseDialogFragment_contentContainer);

        return root;
    }

    /**
     * Callback made after inflating this dialog's content layout. Use this method
     * to capture references to dialog content for later use. The given {@link ViewGroup}
     * is the parent container for dialog content inflated in {{@link #setContentView(int)}.
     * @param contentContainer Parent {@link ViewGroup} for content inflated in {@link #setContentView(int)}.
     */
    protected abstract void onInitializeViewReferences(ViewGroup contentContainer);

    /**
     * Determines if this dialog fragment is currently showing.
     * @return <code>true</code> if showing, <code>false</code> otherwise.
     */
    public boolean isShowing() {
        return this.getDialog() != null && this.getDialog().isShowing();
    }

    /**
     * Sets the dialog content from a layout resource. This resource
     * will be inflated, adding all top-level views to the dialog's content region.
     * @param layoutResource Resource ID to be inflated.
     */
    protected void setContentView(int layoutResourceId) {
        LayoutInflater inflater = LayoutInflater.from(this.getActivity());
        inflater.inflate(layoutResourceId, this._contentContainer);

        this.onInitializeViewReferences(this._contentContainer);
    }

    /**
     * Sets this dialog's title to the given string.
     * @param Title string.
     */
    public void setTitle(String title) {
        TextView titleLabel = (TextView) this.getView().findViewById(R.id.BaseDialogFragment_title);
        if (titleLabel != null)
            titleLabel.setText(title);
        else
            throw new IllegalStateException(EXCEPTION_COULD_NOT_FIND_BASE_COMPONENT);
    }

}