| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.apache.weex.utils; |
| |
| import android.content.Context; |
| import android.content.Intent; |
| import android.graphics.Bitmap; |
| import android.graphics.Color; |
| import android.net.Uri; |
| import android.os.Environment; |
| import android.os.Handler; |
| import android.os.Looper; |
| import android.provider.MediaStore; |
| import android.support.annotation.ColorInt; |
| import android.view.View; |
| |
| import org.apache.weex.WXSDKManager; |
| |
| import java.io.File; |
| import java.io.FileNotFoundException; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| |
| /** |
| * Created by miomin on 7/25/17. |
| */ |
| public class WXViewToImageUtil { |
| |
| public static int mBackgroundColor = Color.TRANSPARENT; |
| |
| /** |
| * Generate image and return path via callback |
| */ |
| public static void generateImage(final View imageView, final int width, |
| @ColorInt final int backgroundColor, final OnImageSavedCallback mOnImageSavedCallback) { |
| |
| mBackgroundColor = backgroundColor; |
| |
| // Only one save image task occurs at the same time |
| WXSDKManager.getInstance().getWXWorkThreadManager().post(new Thread(new Runnable() { |
| @Override |
| public void run() { |
| // Generate bitmap from ImageView |
| Bitmap bitmap = getBitmapFromImageView(imageView, width); |
| |
| if (bitmap == null) { |
| if (mOnImageSavedCallback != null) { |
| mOnImageSavedCallback.onSaveFailed("Image is empty"); |
| } |
| return; |
| } |
| |
| // Sava bitmap to gallery |
| final String destPath = saveBitmapToGallery(imageView.getContext(), bitmap, mOnImageSavedCallback); |
| |
| new Handler(Looper.getMainLooper()).post(new Runnable() { |
| @Override |
| public void run() { |
| if (mOnImageSavedCallback != null) { |
| mOnImageSavedCallback.onSaveSucceed(destPath); |
| imageView.getContext().sendBroadcast(new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE, Uri.parse(destPath))); |
| } |
| } |
| }); |
| } |
| })); |
| } |
| |
| /** |
| * Save bitmap to gallery |
| * @return image save path |
| */ |
| public static String saveBitmapToGallery(Context context, Bitmap bitmap, final OnImageSavedCallback mOnImageSavedCallback) { |
| |
| // Save image |
| File appDir = new File(Environment.getExternalStorageDirectory(), "Weex"); |
| if (!appDir.exists()) { |
| appDir.mkdir(); |
| } |
| |
| String fileName = System.currentTimeMillis() + ".jpg"; |
| File file = new File(appDir, fileName); |
| |
| try { |
| FileOutputStream fos = new FileOutputStream(file); |
| bitmap.compress(Bitmap.CompressFormat.JPEG, 100, fos); |
| fos.flush(); |
| fos.close(); |
| } catch (FileNotFoundException e) { |
| if (mOnImageSavedCallback != null) |
| mOnImageSavedCallback.onSaveFailed("Image creation failed due to system reason"); |
| e.printStackTrace(); |
| } catch (IOException e) { |
| if (mOnImageSavedCallback != null) |
| mOnImageSavedCallback.onSaveFailed("Android IOException"); |
| e.printStackTrace(); |
| } |
| |
| // Insert the image file into the system gallery |
| try { |
| MediaStore.Images.Media.insertImage(context.getContentResolver(), |
| file.getAbsolutePath(), fileName, null); |
| } catch (FileNotFoundException e) { |
| e.printStackTrace(); |
| } |
| |
| // Notify the system gallery update |
| context.sendBroadcast(new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE, Uri.parse("file://" + appDir.getAbsolutePath() + "/" + fileName))); |
| |
| return file.getAbsolutePath(); |
| } |
| |
| /** |
| * Save state callback |
| */ |
| public interface OnImageSavedCallback { |
| void onSaveSucceed(String path); |
| void onSaveFailed(String errorDesc); |
| } |
| |
| /** |
| * Get bitmap from imageview |
| */ |
| public static Bitmap getBitmapFromImageView(final View view, int width) { |
| if (view.getWidth() <= 0 || view.getHeight() <= 0) { |
| view.measure(View.MeasureSpec.makeMeasureSpec(width, View.MeasureSpec.EXACTLY), |
| View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED)); |
| view.layout(0, 0, view.getMeasuredWidth(), view.getMeasuredHeight()); |
| } |
| |
| view.setDrawingCacheEnabled(true); |
| Bitmap bitmap = view.getDrawingCache(); |
| return bitmap; |
| } |
| } |