在android中开发图像着色。因此,当我点击另一个图像视图(例如保存)时将颜色应用于我的图像后,我必须将该图像保存到图库。
答案 0 :(得分:19)
从imageView
获取位图:
imageview.buildDrawingCache();
Bitmap bm=imageview.getDrawingCache();
将其保存在文件中:
OutputStream fOut = null;
Uri outputFileUri;
try {
File root = new File(Environment.getExternalStorageDirectory()
+ File.separator + "folder_name" + File.separator);
root.mkdirs();
File sdImageMainDirectory = new File(root, "myPicName.jpg");
outputFileUri = Uri.fromFile(sdImageMainDirectory);
fOut = new FileOutputStream(sdImageMainDirectory);
} catch (Exception e) {
Toast.makeText(this, "Error occured. Please try again later.",
Toast.LENGTH_SHORT).show();
}
try {
bm.compress(Bitmap.CompressFormat.PNG, 100, fOut);
fOut.flush();
fOut.close();
} catch (Exception e) {
}
答案 1 :(得分:3)
你必须
首先可以使用以下代码实现:
FileOutputStream out = new FileOutputStream(filePath);
bitmap.compress(Bitmap.CompressFormat.PNG, 90, out);
其次,
MediaStore.Images.Media.insertImage(getContentResolver(), bitmap, imagePath, name, description);
答案 2 :(得分:-1)
首先获取imageView的drawingCache(位图),然后将位图保存到SD卡。
File folder = new File(Environment.getExternalStorageDirectory()+“/ folder /”); if(!folder.exists())folderAppointment.mkdirs();
try {
this.setDrawingCacheEnabled(true);
FileOutputStream fos = new FileOutputStream(new File(Environment.getExternalStorageDirectory()+"/folder/file"));
Bitmap bitmap = YOUR_IMAGE_VIEW.getDrawingCache();
bitmap.compress(CompressFormat.JPEG, 100, fos);
fos.flush();
fos.close();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}