将位图保存在自定义路径和自定义名称

Question

我的程序捕获图像（作为位图），但我不知道（也找不到）如何在自定义路径中使用自定义名称保存它...这是我的图像捕获代码。我可以做吗？或者有什么办法将它保存为另一种数据类型，而不是位图？一些帮助会很棒。谢谢。

public class ShowMessagesPage extends Activity {
final static int CAMERA_RESULT = 0;
DBAdapter db = new DBAdapter(this);
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_show_messages_page);

    Button userButton = (Button)findViewById(R.id.button1);
    userButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
        error();
        }});

    Button buttonPhoto = (Button)findViewById(R.id.buttonPhoto);
    buttonPhoto.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Intent i = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
            startActivityForResult(i, CAMERA_RESULT);
        }});}

protected void onActivityResult(int requestCode, int resultCode,
          Intent intent) {
        super.onActivityResult(requestCode, resultCode, intent);

        if (resultCode == RESULT_OK) {
          Bundle extras = intent.getExtras();
          Bitmap bmp = (Bitmap) extras.get("data");



        }
      }

and the other codes..........

Answer 1

试试这个：

Intent getCameraImage = new Intent("android.media.action.IMAGE_CAPTURE");

File cameraFolder;

if (android.os.Environment.getExternalStorageState().equals(android.os.Environment.MEDIA_MOUNTED))
    cameraFolder = new File(android.os.Environment.getExternalStorageDirectory(),"folder_name_of_your_choice");
else
    cameraFolder= ShowMessagesPage.this.getCacheDir();
if(!cameraFolder.exists())
    cameraFolder.mkdirs();

File photo = new File(Environment.getExternalStorageDirectory(), "folder_name_of_your_choice/camera_snap.jpg");
getCameraImage.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(photo));
initialURI = Uri.fromFile(photo);

startActivityForResult(getCameraImage, CAMERA_RESULT);

在 onActivityResult() 中，处理Uri initialURI 以获取您的图像，该图像已保存到您在上面发布的代码中选择的路径中。图像文件的名称为：camera_snap.jpg

注意：Uri initialURI 是全局声明的。