在我的 Kotlin 模拟器中看不到任何图像

Question

我试图在活动中选择一个图像，但只要我点击选择，我就会进入设备文件夹，但里面没有图片。 请看我下面的代码：

class AddPainting : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_add_painting)
    }

    fun select(view: View) {
        if(checkSelfPermission(Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
            requestPermissions(arrayOf(Manifest.permission.READ_EXTERNAL_STORAGE), 2);
        } else {
            val intent = Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
            startActivityForResult(intent, 1);
        }
    }

    override fun onRequestPermissionsResult(
        requestCode: Int,
        permissions: Array<out String>,
        grantResults: IntArray
    ) {
        if(requestCode == 2) {
            if(grantResults.size > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
//                val intent = Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
                val intent = Intent(Intent.ACTION_PICK);
                intent.type = "image/*";
                startActivityForResult(intent, 1);
            }
        }
        super.onRequestPermissionsResult(requestCode, permissions, grantResults)
    }

    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
        if(requestCode == 1 && requestCode == Activity.RESULT_OK && data != null) {
            val image = data.data;
            try{
                val selectedImage = MediaStore.Images.Media.getBitmap(this.contentResolver, image);
                imageView.setImageURI(data?.data);
            }catch (e: Exception) {
                e.printStackTrace();
            }
        }
        super.onActivityResult(requestCode, resultCode, data)
    }

    fun save(view: View) {

    }
}

这是我在转移我选择图片时看到的

Answer 1

使用您的selectedImage位图在ImageView设置

imageView.setImageURI(data?.data);

到

imageView.setImageURI(selectedImage);