Android Utililty Methods Bitmap Load

List of utility methods to do Bitmap Load

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Description

The list of methods to do Bitmap Load are organized into topic(s).

Method

BitmapSafeDecodeBitmapFile( String strFilePath)
Safe Decode Bitmap File 
Log.v(TAG, "[ImageDownloader] SafeDecodeBitmapFile : "
        + strFilePath);
try {
    File file = new File(strFilePath);
    if (file.exists() == false) {
        Log.e(TAG,
                "[ImageDownloader] SafeDecodeBitmapFile : File does not exist !!");
        return null;
...
BitmapdecodeF(File f)
Decode f. 
Bitmap b = null;
try {
    BitmapFactory.Options bfo = new BitmapFactory.Options();
    FileInputStream fis = new FileInputStream(f);
    b = BitmapFactory.decodeStream(fis, null, bfo);
    fis.close();
} catch (Exception e) {
    e.printStackTrace();
...
BitmapdecodeFile(File f, int size)
See: http://stackoverflow.com/questions/477572/android-strange -out-of-memory-issue-while-loading-an-image -to-a-bitmap-object/823966#823966 Thanks to StackOverflow user named Fedor. 
Bitmap b = null;
try {
    BitmapFactory.Options o = new BitmapFactory.Options();
    o.inJustDecodeBounds = true;
    FileInputStream fis = new FileInputStream(f);
    BitmapFactory.decodeStream(fis, null, o);
    fis.close();
    int scale = 1;
...
BitmapdecodeFromDescriptor( FileDescriptor descriptor)
decode From Descriptor 
return decodeFromDescriptor(descriptor, 0, 0);
BitmapdecodeFromDescriptor( FileDescriptor descriptor, int reqWidth, int reqHeight)
decode From Descriptor 
final BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
BitmapFactory.decodeFileDescriptor(descriptor, null, options);
options.inSampleSize = inSampleSize(options, reqWidth, reqHeight);
options.inJustDecodeBounds = false;
Bitmap bitmap;
try {
    bitmap = BitmapFactory.decodeFileDescriptor(descriptor, null,
...
BitmapgetBitmap(Context c, String uri, int minsizeDP)
get Bitmap 
InputStream input = ContactsContract.Contacts
        .openContactPhotoInputStream(c.getContentResolver(),
                Uri.parse(uri), true);
Bitmap bitmap = BitmapFactory.decodeStream(input);
if (bitmap != null
        && bitmap.getScaledHeight(c.getResources()
                .getDisplayMetrics()) < minsizeDP) {
    int newsize = Math
...
BitmapgetImageFromAssetFile(Context context, String fileName)
get image from assert 
Bitmap image = null;
try {
    AssetManager am = context.getAssets();
    InputStream is = am.open(fileName);
    BitmapFactory.Options opt = new BitmapFactory.Options();
    opt.inPreferredConfig = Bitmap.Config.RGB_565;
    opt.inPurgeable = true;
    opt.inInputShareable = true;
...
BooleandownloadImageToSd(String urlSource, String pathDest)
Method 
HttpURLConnection mHttpURLConnection = null;
FileOutputStream mFileOutputStream = null;
BufferedOutputStream mBufferedOutputStream = null;
BufferedInputStream mBufferedInputStream = null;
File imageFile = null;
URL url = new URL(urlSource);
mHttpURLConnection = (HttpURLConnection) url.openConnection();
mHttpURLConnection.setConnectTimeout(5 * 1000);
...
BooleandownloadImageToSd(String urlSource, String pathDest, String referer)
download Image To Sd 
HttpURLConnection mHttpURLConnection = null;
FileOutputStream mFileOutputStream = null;
BufferedOutputStream mBufferedOutputStream = null;
BufferedInputStream mBufferedInputStream = null;
File imageFile = null;
URL url = new URL(urlSource);
mHttpURLConnection = (HttpURLConnection) url.openConnection();
mHttpURLConnection.setRequestProperty("referer", referer);
...
BitmapgetResizedBitmap(Uri imageUri, Activity activity)
get Resized Bitmap 
Bitmap resizedBitmap = null;
try {
    ContentResolver resolver = activity.getContentResolver();
    InputStream in = resolver.openInputStream(imageUri);
    Bitmap bitmap = BitmapFactory.decodeStream(in);
    in.close();
    Matrix matrix = new Matrix();
    DisplayMetrics metrics = new DisplayMetrics();
...