将SD卡中的图片放入android的imageview中

import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Environment;
import android.widget.ImageView;

public class MainActivity extends AppCompatActivity {
    private ImageView imageView;

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

        imageView = findViewById(R.id.imageView);

        // 获取SD卡图片的路径
        String imagePath = Environment.getExternalStorageDirectory().getPath() + "/Pictures/image.jpg";

        // 加载图片到内存
        Bitmap bitmap = BitmapFactory.decodeFile(imagePath);

        // 将图片设置给ImageView
        imageView.setImageBitmap(bitmap);
    }
}