Examples with Bitmap android.graphics.Bitmap used on opensource projects

Example 6 with Bitmap

use of android.graphics.Bitmap in project Launcher3 by chislon.

the class WidgetPreviewLoader method getPreview.

public Bitmap getPreview(final Object o) {
    final String name = getObjectName(o);
    final String packageName = getObjectPackage(o);
    // check if the package is valid
    boolean packageValid = true;
    synchronized (sInvalidPackages) {
        packageValid = !sInvalidPackages.contains(packageName);
    }
    if (!packageValid) {
        return null;
    }
    if (packageValid) {
        synchronized (mLoadedPreviews) {
            // check if it exists in our existing cache
            if (mLoadedPreviews.containsKey(name) && mLoadedPreviews.get(name).get() != null) {
                return mLoadedPreviews.get(name).get();
            }
        }
    }
    Bitmap unusedBitmap = null;
    synchronized (mUnusedBitmaps) {
        // not in cache; we need to load it from the db
        while ((unusedBitmap == null || !unusedBitmap.isMutable() || unusedBitmap.getWidth() != mPreviewBitmapWidth || unusedBitmap.getHeight() != mPreviewBitmapHeight) && mUnusedBitmaps.size() > 0) {
            unusedBitmap = mUnusedBitmaps.remove(0).get();
        }
        if (unusedBitmap != null) {
            final Canvas c = mCachedAppWidgetPreviewCanvas.get();
            c.setBitmap(unusedBitmap);
            c.drawColor(0, PorterDuff.Mode.CLEAR);
            c.setBitmap(null);
        }
    }
    if (unusedBitmap == null) {
        unusedBitmap = Bitmap.createBitmap(mPreviewBitmapWidth, mPreviewBitmapHeight, Bitmap.Config.ARGB_8888);
    }
    Bitmap preview = null;
    if (packageValid) {
        preview = readFromDb(name, unusedBitmap);
    }
    if (preview != null) {
        synchronized (mLoadedPreviews) {
            mLoadedPreviews.put(name, new WeakReference<Bitmap>(preview));
        }
        return preview;
    } else {
        // it's not in the db... we need to generate it
        final Bitmap generatedPreview = generatePreview(o, unusedBitmap);
        preview = generatedPreview;
        if (preview != unusedBitmap) {
            throw new RuntimeException("generatePreview is not recycling the bitmap " + o);
        }
        synchronized (mLoadedPreviews) {
            mLoadedPreviews.put(name, new WeakReference<Bitmap>(preview));
        }
        // write to db on a thread pool... this can be done lazily and improves the performance
        // of the first time widget previews are loaded
        new AsyncTask<Void, Void, Void>() {

            public Void doInBackground(Void... args) {
                writeToDb(o, generatedPreview);
                return null;
            }
        }.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, (Void) null);
        return preview;
    }
}

Example 7 with Bitmap

use of android.graphics.Bitmap in project Launcher3 by chislon.

the class SavedWallpaperImages method loadThumbnailsAndImageIdList.

public void loadThumbnailsAndImageIdList() {
    mImages = new ArrayList<SavedWallpaperTile>();
    SQLiteDatabase db = mDb.getReadableDatabase();
    Cursor result = db.query(ImageDb.TABLE_NAME, new String[] { ImageDb.COLUMN_ID, // cols to return
    ImageDb.COLUMN_IMAGE_THUMBNAIL_FILENAME }, // select query
    null, // args to select query
    null, null, null, ImageDb.COLUMN_ID + " DESC", null);
    while (result.moveToNext()) {
        String filename = result.getString(1);
        File file = new File(mContext.getFilesDir(), filename);
        Bitmap thumb = BitmapFactory.decodeFile(file.getAbsolutePath());
        if (thumb != null) {
            mImages.add(new SavedWallpaperTile(result.getInt(0), new BitmapDrawable(thumb)));
        }
    }
    result.close();
}

Example 8 with Bitmap

use of android.graphics.Bitmap in project TakePhoto by crazycodeboy.

the class TakePhotoImpl method onActivityResult.

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
    switch(requestCode) {
        case TConstant.RC_PICK_PICTURE_FROM_GALLERY_CROP:
            if (resultCode == Activity.RESULT_OK && data != null) {
                //从相册选择照片并裁剪
                try {
                    onCrop(data.getData(), outPutUri, cropOptions);
                } catch (TException e) {
                    takeResult(TResult.of(TImage.of(outPutUri, fromType)), e.getDetailMessage());
                    e.printStackTrace();
                }
            } else {
                listener.takeCancel();
            }
            break;
        case //从相册选择照片不裁剪
        TConstant.RC_PICK_PICTURE_FROM_GALLERY_ORIGINAL:
            if (resultCode == Activity.RESULT_OK) {
                try {
                    takeResult(TResult.of(TImage.of(TUriParse.getFilePathWithUri(data.getData(), contextWrap.getActivity()), fromType)));
                } catch (TException e) {
                    takeResult(TResult.of(TImage.of(data.getData(), fromType)), e.getDetailMessage());
                    e.printStackTrace();
                }
            } else {
                listener.takeCancel();
            }
            break;
        case //从文件选择照片不裁剪
        TConstant.RC_PICK_PICTURE_FROM_DOCUMENTS_ORIGINAL:
            if (resultCode == Activity.RESULT_OK) {
                try {
                    takeResult(TResult.of(TImage.of(TUriParse.getFilePathWithDocumentsUri(data.getData(), contextWrap.getActivity()), fromType)));
                } catch (TException e) {
                    takeResult(TResult.of(TImage.of(outPutUri, fromType)), e.getDetailMessage());
                    e.printStackTrace();
                }
            } else {
                listener.takeCancel();
            }
            break;
        case //从文件选择照片，并裁剪
        TConstant.RC_PICK_PICTURE_FROM_DOCUMENTS_CROP:
            if (resultCode == Activity.RESULT_OK) {
                try {
                    onCrop(data.getData(), outPutUri, cropOptions);
                } catch (TException e) {
                    takeResult(TResult.of(TImage.of(outPutUri, fromType)), e.getDetailMessage());
                    e.printStackTrace();
                }
            } else {
                listener.takeCancel();
            }
            break;
        case //拍取照片,并裁剪
        TConstant.RC_PICK_PICTURE_FROM_CAPTURE_CROP:
            if (resultCode == Activity.RESULT_OK) {
                if (takePhotoOptions != null && takePhotoOptions.isCorrectImage())
                    ImageRotateUtil.of().correctImage(contextWrap.getActivity(), tempUri);
                try {
                    onCrop(tempUri, Uri.fromFile(new File(TUriParse.parseOwnUri(contextWrap.getActivity(), outPutUri))), cropOptions);
                } catch (TException e) {
                    takeResult(TResult.of(TImage.of(outPutUri, fromType)), e.getDetailMessage());
                    e.printStackTrace();
                }
            } else {
                listener.takeCancel();
            }
            break;
        case //拍取照片
        TConstant.RC_PICK_PICTURE_FROM_CAPTURE:
            if (resultCode == Activity.RESULT_OK) {
                if (takePhotoOptions != null && takePhotoOptions.isCorrectImage())
                    ImageRotateUtil.of().correctImage(contextWrap.getActivity(), outPutUri);
                try {
                    takeResult(TResult.of(TImage.of(TUriParse.getFilePathWithUri(outPutUri, contextWrap.getActivity()), fromType)));
                } catch (TException e) {
                    takeResult(TResult.of(TImage.of(outPutUri, fromType)), e.getDetailMessage());
                    e.printStackTrace();
                }
            } else {
                listener.takeCancel();
            }
            break;
        //裁剪照片返回结果
        case TConstant.RC_CROP:
        case //裁剪照片返回结果
        Crop.REQUEST_CROP:
            if (resultCode == Activity.RESULT_OK) {
                if (multipleCrop != null) {
                    cropContinue(true);
                } else {
                    try {
                        TImage image = TImage.of(TUriParse.getFilePathWithUri(outPutUri, contextWrap.getActivity()), fromType);
                        image.setCropped(true);
                        takeResult(TResult.of(image));
                    } catch (TException e) {
                        takeResult(TResult.of(TImage.of(outPutUri.getPath(), fromType)), e.getDetailMessage());
                        e.printStackTrace();
                    }
                }
            } else if (resultCode == Activity.RESULT_CANCELED) {
                //裁剪的照片没有保存
                if (multipleCrop != null) {
                    if (data != null) {
                        //获取裁剪的结果数据
                        Bitmap bitmap = data.getParcelableExtra("data");
                        //将裁剪的结果写入到文件
                        TImageFiles.writeToFile(bitmap, outPutUri);
                        cropContinue(true);
                    } else {
                        cropContinue(false);
                    }
                } else {
                    if (data != null) {
                        //获取裁剪的结果数据
                        Bitmap bitmap = data.getParcelableExtra("data");
                        //将裁剪的结果写入到文件
                        TImageFiles.writeToFile(bitmap, outPutUri);
                        TImage image = TImage.of(outPutUri.getPath(), fromType);
                        image.setCropped(true);
                        takeResult(TResult.of(image));
                    } else {
                        listener.takeCancel();
                    }
                }
            } else {
                if (multipleCrop != null) {
                    cropContinue(false);
                } else {
                    listener.takeCancel();
                }
            }
            break;
        case //多选图片返回结果
        TConstant.RC_PICK_MULTIPLE:
            if (resultCode == Activity.RESULT_OK && data != null) {
                ArrayList<Image> images = data.getParcelableArrayListExtra(Constants.INTENT_EXTRA_IMAGES);
                if (cropOptions != null) {
                    try {
                        onCrop(MultipleCrop.of(TUtils.convertImageToUri(contextWrap.getActivity(), images), contextWrap.getActivity(), fromType), cropOptions);
                    } catch (TException e) {
                        cropContinue(false);
                        e.printStackTrace();
                    }
                } else {
                    takeResult(TResult.of(TUtils.getTImagesWithImages(images, fromType)));
                }
            } else {
                listener.takeCancel();
            }
            break;
        default:
            break;
    }
}

Example 9 with Bitmap

use of android.graphics.Bitmap in project TakePhoto by crazycodeboy.

the class CompressImageUtil method compressImageByPixel.

/**
	 * 按比例缩小图片的像素以达到压缩的目的
	 * @author JPH
	 * @param imgPath
	 * @return 
	 * @date 2014-12-5下午11:30:59
	 */
private void compressImageByPixel(String imgPath, CompressListener listener) throws FileNotFoundException {
    if (imgPath == null) {
        sendMsg(false, imgPath, "要压缩的文件不存在", listener);
        return;
    }
    BitmapFactory.Options newOpts = new BitmapFactory.Options();
    //只读边,不读内容
    newOpts.inJustDecodeBounds = true;
    BitmapFactory.decodeFile(imgPath, newOpts);
    newOpts.inJustDecodeBounds = false;
    int width = newOpts.outWidth;
    int height = newOpts.outHeight;
    float maxSize = config.getMaxPixel();
    int be = 1;
    if (width >= height && width > maxSize) {
        //缩放比,用高或者宽其中较大的一个数据进行计算
        be = (int) (newOpts.outWidth / maxSize);
        be++;
    } else if (width < height && height > maxSize) {
        be = (int) (newOpts.outHeight / maxSize);
        be++;
    }
    //设置采样率
    newOpts.inSampleSize = be;
    //该模式是默认的,可不设
    newOpts.inPreferredConfig = Config.ARGB_8888;
    // 同时设置才会有效
    newOpts.inPurgeable = true;
    //。当系统内存不够时候图片自动被回收
    newOpts.inInputShareable = true;
    Bitmap bitmap = BitmapFactory.decodeFile(imgPath, newOpts);
    if (config.isEnableQualityCompress()) {
        //压缩好比例大小后再进行质量压缩
        compressImageByQuality(bitmap, imgPath, listener);
    } else {
        File thumbnailFile = getThumbnailFile(new File(imgPath));
        bitmap.compress(Bitmap.CompressFormat.JPEG, 100, new FileOutputStream(thumbnailFile));
        listener.onCompressSuccess(thumbnailFile.getPath());
    }
}

Example 10 with Bitmap

use of android.graphics.Bitmap in project TakePhoto by crazycodeboy.

the class ImageRotateUtil method rotateBitmapByDegree.

/**
     * 将图片按照某个角度进行旋转
     *
     * @param bm     需要旋转的图片
     * @param degree 旋转角度
     * @return 旋转后的图片
     */
private Bitmap rotateBitmapByDegree(Bitmap bm, int degree) {
    Bitmap returnBm = null;
    // 根据旋转角度，生成旋转矩阵
    Matrix matrix = new Matrix();
    matrix.postRotate(degree);
    try {
        // 将原始图片按照旋转矩阵进行旋转，并得到新的图片
        returnBm = Bitmap.createBitmap(bm, 0, 0, bm.getWidth(), bm.getHeight(), matrix, true);
    } catch (OutOfMemoryError e) {
    }
    if (returnBm == null) {
        returnBm = bm;
    }
    if (bm != returnBm) {
        bm.recycle();
    }
    return returnBm;
}