[英]How to retrieve a bitmap from a vector image in a XML resource
我正在從XML資源讀取矢量圖像,並將其顯示在ImageView中。 沒關系。 現在,我需要使用intent.putExtra將圖像傳遞給Intent。 問題:如何將矢量XML轉換為位圖或從ImageView獲取圖像? 我嘗試了.getDrawingCache()、. getDrawable,getImageMatrix等,但是它不起作用。
嘗試過這種方式:
String path = MediaStore.Images.Media.insertImage(getApplicationContext().getContentResolver(),
imgPrevisao.getDrawingCache(),
"Minha previsão",null);
Intent sharingIntent = new Intent(Intent.ACTION_SEND);
sharingIntent.setType("image/*");
sharingIntent.putExtra(Intent.EXTRA_STREAM, Uri.parse(path)) ;
getApplicationContext().startActivity(Intent.createChooser(sharingIntent, "Share with"));
這樣:
Intent intent = new Intent( Intent.ACTION_SEND );
intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
intent.putExtra( Intent.EXTRA_TEXT, textoPrevisao );
intent.putExtra( Intent.EXTRA_STREAM, imgPrevisao.getDrawingCache() );
intent.setType( "image/*" );
startActivity( intent );
TIA,
安德烈·科雷阿(AndréCorrêa)
一種方法是使用MediaStore :
public static Uri getImageUri(Context context, Bitmap bmp) {
String path = MediaStore.Images.Media.insertImage(context.getContentResolver(), , "share_title",bmp ,null);
return Uri.parse(path);
}
然后:
public static void shareImageViewContent(ImageView view) {
Bitmap bitmap = ((BitmapDrawable)view.getDrawable()).getBitmap();
Intent sharingIntent = new Intent(Intent.ACTION_SEND);
sharingIntent.setType("image/jpeg");
sharingIntent.putExtra(Intent.EXTRA_STREAM, getImageUri(bitmap)) ;
context.startActivity(Intent.createChooser(sharingIntent, "Share with"));
}
更復雜的解決方案是使用FileProvider信用: link , link , link
我知道那是很久以前的事了,但是如果有人最終有同樣的疑問,我希望它能有所幫助。 我想共享圖像和文本,因為我無法按照自己的方式進行操作,因此制作了屏幕截圖並進行了共享。
private void shareScreenShot() {
try {
// image naming and path to include sd card appending name you choose for file
String mPath = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES)
.toString()+"/Zodiaco";
// create bitmap screen capture
View v1 = getWindow().getDecorView().getRootView();
v1.setDrawingCacheEnabled(true);
Bitmap bitmap = Bitmap.createBitmap(v1.getDrawingCache());
v1.setDrawingCacheEnabled(false);
//creates the directory
File pasta = new File(mPath);
if (!pasta.exists()) {
pasta.mkdir();
}
//creates the image
File imageFile = new File(mPath+ "/" + getDate() + ".jpg");
FileOutputStream outputStream = new FileOutputStream(imageFile);
if(!imageFile.exists()){
imageFile.createNewFile();
}
int quality = 100;
bitmap.compress(Bitmap.CompressFormat.JPEG, quality, outputStream);
outputStream.flush();
outputStream.close();
Uri uri = Uri.fromFile(imageFile);
// creates the intent and defines its action
Intent intent = new Intent( Intent.ACTION_SEND );
intent.setDataAndType(uri, "image/*");
intent.putExtra(Intent.EXTRA_STREAM, uri);
// inicia a intent
startActivity( intent );
} catch (Throwable e) {
Toast.makeText(this, "Não foi possível compartilhar a previsão.",
Toast.LENGTH_LONG).show();
e.printStackTrace();
}
}
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