package de.gultsch.chat.utils; import java.text.SimpleDateFormat; import java.util.Date; import de.gultsch.chat.R; import de.gultsch.chat.entities.Conversation; import de.gultsch.chat.ui.ConversationActivity; import android.app.Notification; import android.app.PendingIntent; import android.content.Context; import android.content.Intent; import android.content.SharedPreferences; import android.content.res.Resources; import android.graphics.Bitmap; import android.graphics.Canvas; import android.graphics.Paint; import android.graphics.Rect; import android.net.Uri; import android.preference.PreferenceManager; import android.support.v4.app.NotificationCompat; import android.support.v4.app.TaskStackBuilder; import android.util.DisplayMetrics; import android.util.Log; public class UIHelper { public static String readableTimeDifference(long time) { if (time == 0) { return "just now"; } Date date = new Date(time); long difference = (System.currentTimeMillis() - time) / 1000; if (difference < 60) { return "just now"; } else if (difference < 60 * 10) { return difference / 60 + " min ago"; } else if (difference < 60 * 60 * 24) { SimpleDateFormat sdf = new SimpleDateFormat("HH:mm"); return sdf.format(date); } else { SimpleDateFormat sdf = new SimpleDateFormat("M/D"); return sdf.format(date); } } public static Bitmap getUnknownContactPicture(String name, int size) { String firstLetter = name.substring(0, 1).toUpperCase(); String centerLetter = name.substring(name.length() / 2, (name.length() / 2) + 1); int holoColors[] = { 0xFF1da9da, 0xFFb368d9, 0xFF83b600, 0xFFffa713, 0xFFe92727 }; int color = holoColors[centerLetter.charAt(0) % holoColors.length]; Bitmap bitmap = Bitmap .createBitmap(size, size, Bitmap.Config.ARGB_8888); Canvas canvas = new Canvas(bitmap); bitmap.eraseColor(color); Paint paint = new Paint(); paint.setColor(0xffe5e5e5); paint.setTextSize((float) (size * 0.9)); paint.setAntiAlias(true); Rect rect = new Rect(); paint.getTextBounds(firstLetter, 0, 1, rect); float width = paint.measureText(firstLetter); canvas.drawText(firstLetter, (size / 2) - (width / 2), (size / 2) + (rect.height() / 2), paint); return bitmap; } public static Notification getUnreadMessageNotification(Context context, Conversation conversation) { SharedPreferences sharedPref = PreferenceManager.getDefaultSharedPreferences(context); String ringtone = sharedPref.getString("notification_ringtone",null); Resources res = context.getResources(); NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(context); mBuilder.setLargeIcon(UIHelper.getUnknownContactPicture(conversation.getName(),(int) res.getDimension(android.R.dimen.notification_large_icon_width))); mBuilder.setContentTitle(conversation.getName()); mBuilder.setContentText(conversation.getLatestMessage()); mBuilder.setSmallIcon(R.drawable.notification); mBuilder.setLights(0xffffffff, 2000, 4000); if (ringtone!=null) { mBuilder.setSound(Uri.parse(ringtone)); } TaskStackBuilder stackBuilder = TaskStackBuilder.create(context); stackBuilder.addParentStack(ConversationActivity.class); Intent viewConversationIntent = new Intent(context,ConversationActivity.class); viewConversationIntent.setAction(Intent.ACTION_VIEW); viewConversationIntent.putExtra( ConversationActivity.CONVERSATION, conversation.getUuid()); viewConversationIntent .setType(ConversationActivity.VIEW_CONVERSATION); stackBuilder.addNextIntent(viewConversationIntent); PendingIntent resultPendingIntent = stackBuilder.getPendingIntent( 0, PendingIntent.FLAG_UPDATE_CURRENT ); mBuilder.setContentIntent(resultPendingIntent); return mBuilder.build(); } }