java - 我的 Android 应用程序最初让我选择一张照片。相反，我希望我的应用程序最初将我带到主页

Question

当我启动应用程序时，它最初会让我选择一张照片。相反，我希望它能将我带到主屏幕，在那里我可以在需要时选择照片。它已经被编程为当我单击 ImageView 时选择一张照片。澄清一下，问题是它迫使我在启动应用程序时选择照片，而不是其他任何时候

    public void getPhoto() {
        Intent intent = new Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
        startActivityForResult(intent,1);
    }

        @Override
        public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
            super.onRequestPermissionsResult(requestCode, permissions, grantResults);

            if (requestCode ==1){
                if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED);{
                getPhoto();
                }
            }
        }

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

if (checkSelfPermission(Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED){
                requestPermissions(new String[]{Manifest.permission.READ_EXTERNAL_STORAGE}, 1);
            } else {
                getPhoto();
            }

        }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);


        if (requestCode ==1 && resultCode == RESULT_OK && data != null) {
            Uri selectedImage = data.getData();

            try {
                Bitmap bitmap = MediaStore.Images.Media.getBitmap(this.getContentResolver(), selectedImage);


                ImageView imageView2 = (ImageView) findViewById(R.id.imageView2);
                imageView2.setImageBitmap(bitmap);


            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }

    public void click(View view) {
        if (checkSelfPermission(Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED){
            requestPermissions(new String[]{Manifest.permission.READ_EXTERNAL_STORAGE}, 1);
        } else {
            getPhoto();
        }
    }
}

Answer 1

就像 Droidman 所说的那样。

if (checkSelfPermission(Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED){
            requestPermissions(new String[]{Manifest.permission.READ_EXTERNAL_STORAGE}, 1);
        } else {
            getPhoto();
        }

您正在检查权限。如果您拥有正确的权限，您可以立即在 onCreate 中调用 getPhoto()。去掉这个调用就可以了。