Question

大家好！我正在使用相机将相片保存在手机库中。但我不想将照片保存在图库中。我想把它保存在其他地方。所以我需要的是不要自动将其保存在图库中。

这是我的代码：

public class MainActivity extends AppCompatActivity {

    ImageView photo;

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

        Button click = (Button)findViewById(R.id.btnPhoto);
        photo = (ImageView) findViewById(R.id.imgPhoto);

        click.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
                startActivityForResult(intent, 0);
            }
        });
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
            super.onActivityResult(requestCode, resultCode, data);
            Bitmap bitmap = (Bitmap)data.getExtras().get("data");
            photo.setImageBitmap(bitmap);
    }
}

如果我的问题不够好，请问我！请帮帮我。

Answer 1

这种打开相机和路径的方法是File declare global。

 private void openCamera() {
    Logger.i("openCamera");

    Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
    if (takePictureIntent.resolveActivity(this.getPackageManager()) != null) {
        File rootPath = new File(Environment.getExternalStorageDirectory(), "folderName");
        if (!rootPath.exists())
            rootPath.mkdirs();

        DateFormat df = new SimpleDateFormat("yyyy-MM-dd-kk-mm-ss");
        String snapshotImage = df.format(new Date()) + ".jpg";

        rootPath = new File(rootPath + "/" + snapshotImage);
        path = rootPath;

       takePictureIntent.putExtra(android.provider.MediaStore.EXTRA_OUTPUT, Uri.fromFile(path));


        startActivityForResult(takePictureIntent, REQUEST_IMAGE_CAPTURE);
    }

}

获得结果

  @Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {

    if (requestCode == REQUEST_IMAGE_CAPTURE && resultCode == RESULT_OK) {

        BitmapFactory.Options options = new BitmapFactory.Options();
        options.inSampleSize = 8;



        if (Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState())) {
            FileOutputStream fos = null;
            try {

              //  Float Latitude=0.0f, Longitude=0.0f;

                imageDvr.setImageURI(Uri.parse(path.getAbsolutePath()));



            } catch (IOException e) {
                e.printStackTrace();
            } finally {
                if (fos != null) {
                    try {
                        fos.close();
                    } catch (IOException e) {
                    }
                }
            }


        }


    }


}

并在清单文件中给出每个任务

 <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>

Answer 2

您将在 onActivityResult（）中获得图片的位图，然后您将按位图存储该图片。

在自制文件夹上使用以下功能存储图片。你需要制作那个文件夹并需要使用它的路径。

像这样。

public void SaveImage(Bitmap showedImgae){

String root = Environment.getExternalStorageDirectory().toString();
File myDir = new File(root + "/YourSelfMadeFolder");    
myDir.mkdirs();
Random generator = new Random();
int n = 10000;
n = generator.nextInt(n);
String fname = "FILENAME-"+ n +".jpg";
File file = new File (myDir, fname);
if (file.exists ()) file.delete (); 
try {
    FileOutputStream out = new FileOutputStream(file);
    showedImgae.compress(Bitmap.CompressFormat.JPEG, 100, out);
    Toast.makeText(activityname.this, "Image Saved", Toast.LENGTH_SHORT).show();
    out.flush();
    out.close();

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

Intent mediaScanIntent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
Uri contentUri = Uri.fromFile(file);
mediaScanIntent.setData(contentUri);
getApplicationContext().sendBroadcast(mediaScanIntent);
}

Answer 3

您可以使用您的URI添加意图android.provider.MediaStore.EXTRA_OUTPUT：

    private File getOutputMediaFile() {
    File mediaStorageDir = null;
    String state = Environment.getExternalStorageState();

        if (state.contains(Environment.MEDIA_MOUNTED)) {
            mediaStorageDir = new File(Environment
                    .getExternalStorageDirectory().toString() + "/yourFolderName");
        } else {
            mediaStorageDir = new File(Environment
                    .getExternalStorageDirectory().toString() + "/yourFolderName");
        }

    if (!mediaStorageDir.exists()) {
        Logger.d("Desc", "File dir " + mediaStorageDir.mkdirs());
    }

    String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());


        mediaFile = new File(mediaStorageDir.getPath() + File.separator +
                "Image_" + timeStamp + ".jpg");
    return mediaFile;
   }

按下按钮：

  click.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {

        Uri mImageCaptureUri = null;
        File mediaFile = getOutputMediaFile();
        mImageCaptureUri = Uri.fromFile(mediaFile);

        intent.putExtra(android.provider.MediaStore.EXTRA_OUTPUT, mImageCaptureUri);
        intent.putExtra("return-data", true);
        this.startActivityForResult(intent, REQUEST_CODE_TAKE_PICTURE);
}}0;

关于活动结果：

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

      Log.d("FilePath","Path"+mediaFile.getAbsolutePath();)
    }

如何不将用相机拍摄的图像保存在自制文件夹中？

3 个答案: