Android studio实现打开相机或者本地上传的xml以及java代码

好的，下面是实现打开相机或本地上传的完整代码，包括 XML 和 Java 代码，供您参考：

1. 打开相机：

activity_main.xml：

<Button
    android:id="@+id/btn_capture"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="拍照" />

MainActivity.java：

private static final int REQUEST_CAPTURE_IMAGE = 100;
private Button btnCapture;

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

    btnCapture = findViewById(R.id.btn_capture);
    btnCapture.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            openCamera();
        }
    });
}

private void openCamera() {
    Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
    if (intent.resolveActivity(getPackageManager()) != null) {
        startActivityForResult(intent, REQUEST_CAPTURE_IMAGE);
    }
}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if (requestCode == REQUEST_CAPTURE_IMAGE && resultCode == RESULT_OK) {
        Bundle extras = data.getExtras();
        Bitmap imageBitmap = (Bitmap) extras.get("data");
        // 在这里处理拍摄的照片
    }
}

2. 打开本地相册：

activity_main.xml：

<Button
    android:id="@+id/btn_pick"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="选择照片" />

MainActivity.java：

private static final int REQUEST_PICK_IMAGE = 200;
private Button btnPick;

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

    btnPick = findViewById(R.id.btn_pick);
    btnPick.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            pickImage();
        }
    });
}

private void pickImage() {
    Intent intent = new Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
    if (intent.resolveActivity(getPackageManager()) != null) {
        startActivityForResult(intent, REQUEST_PICK_IMAGE);
    }
}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if (requestCode == REQUEST_PICK_IMAGE && resultCode == RESULT_OK) {
        Uri uri = data.getData();
        // 在这里处理选中的照片
    }
}

希望以上代码可以帮助您实现打开相机或本地上传的功能。