恢复用户的图像后，如何将其保存在Drawable中 [英] Once you have recovered an image of the user how to save it in Drawable

问题描述

恢复用户的图像后，如何将其保存在应用程序的drawable中?用于其他活动.

Once you have recovered an image of the user, how to save it in drawable in the app ? For use it in other activities.

从用户的库中检索图像并将其放入ImageView中:

Retrieve the image from the user's gallery and put it in ImageView :

public class Profil extends AppCompatActivity {

private Button btnImport;
public ImageView selectedImg;
static final int RESULT_LOAD_IMG = 1;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.profil);

    ImageView btn_supervisor = findViewById(R.id.btn_supervisor);
    ImageView btn_add = findViewById(R.id.btn_add);
    ImageView btn_profile = findViewById(R.id.btn_profile);

    btnImport = findViewById(R.id.modifie_button);
    selectedImg = findViewById(R.id.modifie_image);


    btnImport.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Intent photoPickerIntent = new Intent(Intent.ACTION_PICK);
            photoPickerIntent.setType("image/*");
            startActivityForResult(photoPickerIntent, RESULT_LOAD_IMG);
        }
    });
}
@Override
protected void onActivityResult(int reqCode, int resultCode, Intent data) {
    super.onActivityResult(reqCode, resultCode, data);



    if (resultCode == RESULT_OK) {
        try {
            final Uri imageUri = data.getData();
            final InputStream imageStream = getContentResolver().openInputStream(imageUri);
            final Bitmap selectedImage = BitmapFactory.decodeStream(imageStream);
            selectedImg.setImageBitmap(selectedImage);
        } catch (FileNotFoundException e) {
            e.printStackTrace();
            Toast.makeText(getApplicationContext(), "Une erreur s'est produite",Toast.LENGTH_LONG).show();

        }

    }else {
        Toast.makeText(getApplicationContext(),"Vous n'avez pas choisi d'image", Toast.LENGTH_LONG).show();

    }
}

}

谢谢.

推荐答案

您可以将位图转换为字节数组，并将其保存在领域数据库中.

像这样:

Bitmap bmp = intent.getExtras().get("data");
ByteArrayOutputStream stream = new ByteArrayOutputStream();
bmp.compress(Bitmap.CompressFormat.PNG, 100, stream);
byte[] byteArray = stream.toByteArray();

注意:Realm支持以下字段类型:布尔，字节，短，ìnt，长，浮点，双精度，字符串，日期和字节[]

Notice:Realm supports the following field types: boolean, byte, short, ìnt, long, float, double, String, Date and byte[]

您也可以将此用于android中的领域配置.

You can use this for realm configuration in android too.

您可以通过以下方式将图像视图转换为位图:

And you can convert imageview to bitmap by :

imageView.buildDrawingCache();
Bitmap bmap = imageView.getDrawingCache();

这篇关于恢复用户的图像后，如何将其保存在Drawable中的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！