Java tutorial
/* * * Copyright (c) Microsoft. All rights reserved. * Licensed under the MIT license. * * Project Oxford: http://ProjectOxford.ai * * Project Oxford Mimicker Alarm Github: * https://github.com/Microsoft/ProjectOxford-Apps-MimickerAlarm * * Copyright (c) Microsoft Corporation * All rights reserved. * * MIT License: * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED ""AS IS"", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. * */ package rosmi.acagild.alarmclock.ringing; import android.app.Activity; import android.content.ContentValues; import android.content.Context; import android.content.Intent; import android.graphics.Bitmap; import android.graphics.Canvas; import android.net.Uri; import android.os.Bundle; import android.os.Environment; import android.os.Handler; import android.provider.MediaStore; import android.support.v4.app.Fragment; import android.support.v4.content.ContextCompat; import android.util.TypedValue; import android.view.Gravity; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.ImageView; import android.widget.LinearLayout; import android.widget.TextView; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.text.SimpleDateFormat; import java.util.Date; import rosmi.acagild.alarmclock.R; import rosmi.acagild.alarmclock.utilities.Loggable; import rosmi.acagild.alarmclock.utilities.Logger; /** * This class handles the Sharing user experience once a user has successfully completed a Mimic * game. The class utilizes the system sharing action to allow the user to share with the * application of their choice. */ public class ShareFragment extends Fragment { public static final String SHARE_FRAGMENT_TAG = "share_fragment"; public static final String SHAREABLE_URI = "shareable-uri"; private final static int SHARE_REQUEST_CODE = 2; private final static String MIMICKER_FILE_PREFIX = "Mimicker_"; // The time to auto-dismiss share screen if there is no user interaction private static final int SHARING_FRAGMENT_STAY_DURATION = 60 * 1000; // 1 minute // The time to auto-dismiss share screen after pressing save button private static final int SHARING_FRAGMENT_SAVE_STAY_DURATION = 60 * 1000; // 1 minute // The time to auto-dismiss share screen after pressing share button private static final int SHARING_FRAGMENT_SHARE_STAY_DURATION = 300 * 1000; // 5 minutes // Delay to dismiss the toast message private static final long TOAST_IN_FRAGMENT_DELAY = 1500; // 1.5 seconds private ShareResultListener mCallback; private String mShareableUri; private ImageView mShareableImage; private Handler mHandler; private Runnable mSharingFragmentDismissTask; private Runnable mToastAutoDismiss; private int mSharingFragmentDismissTaskDelay = SHARING_FRAGMENT_STAY_DURATION; public static ShareFragment newInstance(String shareableUri) { ShareFragment fragment = new ShareFragment(); Bundle bundle = new Bundle(1); bundle.putString(SHAREABLE_URI, shareableUri); fragment.setArguments(bundle); return fragment; } public static Uri saveShareableBitmap(Context context, Bitmap bitmap, String question) { drawStamp(context, bitmap, question); File tempFile; try { tempFile = File.createTempFile("mimicker", ".jpg", context.getCacheDir()); tempFile.setReadable(true, false); tempFile.deleteOnExit(); } catch (IOException ex) { Logger.trackException(ex); return null; } if (tempFile.canWrite()) { try { FileOutputStream stream = new FileOutputStream(tempFile); bitmap.compress(Bitmap.CompressFormat.JPEG, 80, stream); stream.close(); } catch (IOException ex) { Logger.trackException(ex); return null; } } return Uri.fromFile(tempFile); } private static void drawStamp(Context context, Bitmap bitmap, String question) { Canvas canvas = new Canvas(bitmap); canvas.drawBitmap(bitmap, 0, 0, null); float opacity = 0.7f; int horizontalPadding = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 10, context.getResources().getDisplayMetrics()); int verticalPadding = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 10, context.getResources().getDisplayMetrics()); int textSize = 16; // defined in SP int height = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP, 16, context.getResources().getDisplayMetrics()); LinearLayout layout = new LinearLayout(context); layout.setOrientation(LinearLayout.HORIZONTAL); layout.setBackgroundResource(R.drawable.rounded_corners); layout.getBackground().setAlpha((int) (opacity * 255)); layout.setPadding(horizontalPadding, verticalPadding, horizontalPadding, verticalPadding); ImageView logo = new ImageView(context); logo.setImageDrawable(ContextCompat.getDrawable(context, R.mipmap.ic_launcher)); layout.addView(logo); TextView textView = new TextView(context); textView.setVisibility(View.VISIBLE); if (question != null) { textView.setText(question); } else { textView.setText("Mimicker"); } textView.setTextSize(TypedValue.COMPLEX_UNIT_DIP, textSize); textView.setPadding(horizontalPadding, 0, 0, 0); LinearLayout.LayoutParams centerInParent = new LinearLayout.LayoutParams( ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT); centerInParent.gravity = Gravity.CENTER_VERTICAL; layout.addView(textView, centerInParent); layout.measure(canvas.getWidth(), height); layout.layout(0, 0, layout.getMeasuredWidth(), layout.getMeasuredHeight()); canvas.translate(horizontalPadding, (float) (canvas.getHeight() * 0.8 - height)); float scale = Math.min(1.0f, canvas.getWidth() / 1080f); canvas.scale(scale, scale); layout.draw(canvas); } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View view = inflater.inflate(R.layout.fragment_shareable, container, false); mShareableImage = (ImageView) view.findViewById(R.id.shareable_image); view.findViewById(R.id.finish_button).setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { finishShare(); } }); view.findViewById(R.id.share_button).setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { // Reset the timer to wait sharing to complete updateDismissTaskWithDelayDuration(SHARING_FRAGMENT_SHARE_STAY_DURATION); share(); } }); view.findViewById(R.id.download_button).setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { // Reset the timer to wait downloading to complete updateDismissTaskWithDelayDuration(SHARING_FRAGMENT_SAVE_STAY_DURATION); download(); } }); Bundle args = getArguments(); mShareableUri = args.getString(SHAREABLE_URI); // Set up timer to dismiss the sharing fragment if there is no user interaction with the buttons mSharingFragmentDismissTask = new Runnable() { @Override public void run() { finishShare(); } }; mHandler = new Handler(); Logger.init(getActivity()); return view; } @Override public void onAttach(Context context) { super.onAttach(context); mCallback = (ShareResultListener) context; } @Override public void onDetach() { super.onDetach(); mCallback = null; } @Override public void onPause() { super.onPause(); mHandler.removeCallbacks(mSharingFragmentDismissTask); } @Override public void onResume() { super.onResume(); if (mShareableUri != null && mShareableUri.length() > 0) { Uri shareableUri = Uri.parse(mShareableUri); mShareableImage.setImageURI(shareableUri); } mHandler.postDelayed(mSharingFragmentDismissTask, mSharingFragmentDismissTaskDelay); } @Override public void onDestroy() { super.onDestroy(); if (mShareableUri != null && mShareableUri.length() > 0) { new Thread(new Runnable() { @Override public void run() { File deleteFile = new File(mShareableUri); boolean deleted = deleteFile.delete(); if (!deleted) { Loggable.AppError appError = new Loggable.AppError(Loggable.Key.APP_ERROR, "Failed to delete shareable"); Logger.track(appError); } } }).start(); } mHandler.removeCallbacks(mToastAutoDismiss); } public void share() { Loggable.UserAction userAction = new Loggable.UserAction(Loggable.Key.ACTION_SHARE); Logger.track(userAction); mCallback.onRequestLaunchShareAction(); Intent shareIntent = new Intent(); shareIntent.setAction(Intent.ACTION_SEND); // this causes issues with gmail //shareIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); File file = new File(mShareableUri); Uri uri = Uri.fromFile(file); shareIntent.putExtra(Intent.EXTRA_STREAM, uri); shareIntent.putExtra(Intent.EXTRA_SUBJECT, getResources().getString(R.string.share_subject_template)); shareIntent.setType("image/*"); shareIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION); startActivityForResult( Intent.createChooser(shareIntent, getResources().getString(R.string.share_action_description)), SHARE_REQUEST_CODE); } // // Copy the temporary mimic picture to the camera folder with a filename with timestamp // public void download() { File cameraDirectory = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM); File sourceFile = new File(mShareableUri); String dateTimeString = (new SimpleDateFormat("yyyy-MM-dd-HHmmss").format(new Date())); // Example: 2015-12-31-193205 String targetFileName = MIMICKER_FILE_PREFIX + dateTimeString + ".jpg"; // "Mimicker_2015-12-31-193205.jpg File targetFile = new File(cameraDirectory.getPath(), targetFileName); try { copyFile(sourceFile, targetFile); } catch (IOException ex) { showToastInFragment(R.string.share_download_failure); Logger.trackException(ex); return; } // Inform the media store about the new file ContentValues values = new ContentValues(); values.put(MediaStore.Images.Media.DATE_TAKEN, System.currentTimeMillis()); values.put(MediaStore.Images.Media.MIME_TYPE, "image/jpeg"); values.put(MediaStore.MediaColumns.DATA, targetFile.getPath()); getActivity().getContentResolver().insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values); showToastInFragment(R.string.share_download_success); } public void copyFile(File sourceFile, File targetFile) throws IOException { InputStream inputStream = new FileInputStream(sourceFile); OutputStream outputStream = new FileOutputStream(targetFile); int len; byte[] buffer = new byte[4096]; while ((len = inputStream.read(buffer)) > 0) { outputStream.write(buffer, 0, len); } inputStream.close(); outputStream.close(); } @Override public void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if (requestCode == SHARE_REQUEST_CODE) { if (resultCode == Activity.RESULT_OK) { finishShare(); } } } public void finishShare() { mHandler.removeCallbacks(mSharingFragmentDismissTask); if (mCallback != null) { mCallback.onShareCompleted(); } } public interface ShareResultListener { void onShareCompleted(); void onRequestLaunchShareAction(); } // Display the home-made toast message with the specified string resource ID // // We create our own toast message, instead of using android.widget.toast, because // system toast won't work in lock screen. private void showToastInFragment(int resourceId) { String message = getResources().getString(resourceId); final TextView textView = (TextView) getView().findViewById(R.id.share_toast_message); textView.setText(message); textView.setVisibility(View.VISIBLE); Handler handler = new Handler(); mToastAutoDismiss = new Runnable() { @Override public void run() { textView.setVisibility(View.INVISIBLE); } }; handler.postDelayed(mToastAutoDismiss, TOAST_IN_FRAGMENT_DELAY); } private void updateDismissTaskWithDelayDuration(int delayDuration) { mHandler.removeCallbacks(mSharingFragmentDismissTask); mSharingFragmentDismissTaskDelay = delayDuration; mHandler.postDelayed(mSharingFragmentDismissTask, mSharingFragmentDismissTaskDelay); } }