com.commonsware.cwac.cam2.support.ConfirmationFragment.java Source code

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Here is the source code for com.commonsware.cwac.cam2.support.ConfirmationFragment.java

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/***
 Copyright (c) 2015 CommonsWare, LLC
    
 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.commonsware.cwac.cam2.support;

import android.app.ActionBar;
import android.app.Activity;
import android.os.Build;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import com.commonsware.cwac.cam2.ImageContext;

public class ConfirmationFragment extends Fragment {
    public interface Contract {
        void completeRequest(ImageContext imageContext, boolean isOK);

        void retakePicture();
    }

    private ImageView iv;
    private ImageContext imageContext;

    public static ConfirmationFragment newInstance() {
        ConfirmationFragment result = new ConfirmationFragment();
        Bundle args = new Bundle();

        result.setArguments(args);

        return (result);
    }

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

        setRetainInstance(true);
        setHasOptionsMenu(true);
    }

    @Override
    public void onAttach(Activity activity) {
        if (!(activity instanceof Contract)) {
            throw new IllegalStateException("Hosting activity must implement Contract interface");
        }

        super.onAttach(activity);
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        iv = new ImageView(getActivity());

        if (imageContext != null) {
            loadImage();
        }

        return (iv);
    }

    @Override
    public void onHiddenChanged(boolean isHidden) {
        super.onHiddenChanged(isHidden);

        if (!isHidden) {
            ActionBar ab = getActivity().getActionBar();

            ab.setBackgroundDrawable(
                    getActivity().getResources().getDrawable(R.drawable.cwac_cam2_action_bar_bg_translucent));
            ab.setTitle("");

            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
                ab.setDisplayHomeAsUpEnabled(true);
                ab.setHomeAsUpIndicator(R.drawable.cwac_cam2_ic_close_white);
            } else {
                ab.setIcon(R.drawable.cwac_cam2_ic_close_white);
                ab.setDisplayShowHomeEnabled(true);
                ab.setHomeButtonEnabled(true);
            }
        }
    }

    @Override
    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
        inflater.inflate(R.menu.cwac_cam2_confirm, menu);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        if (item.getItemId() == android.R.id.home) {
            getContract().completeRequest(imageContext, true);
        } else if (item.getItemId() == R.id.cwac_cam2_ok) {
            getContract().completeRequest(imageContext, true);
        } else if (item.getItemId() == R.id.cwac_cam2_retry) {
            getContract().retakePicture();
        } else {
            return (super.onOptionsItemSelected(item));
        }

        return (true);
    }

    public void setImage(ImageContext imageContext) {
        this.imageContext = imageContext;

        if (iv != null) {
            loadImage();
        }
    }

    private Contract getContract() {
        return ((Contract) getActivity());
    }

    private void loadImage() {
        iv.setImageBitmap(imageContext.buildPreviewThumbnail());
    }
}