Question

这是我的代码，它存储捕获的图片格式相机并保存在 SD卡但现在我想增强此代码每5秒拍照如果有任何机构知道如何做到这一点，请分享

public class MainActivity extends ActionBarActivity {


    private final int requestCode = 20;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        int pictureCounter = 10;

        imageHolder = (ImageView)findViewById(R.id.captured_photo);
        Button capturedImageButton = (Button)findViewById(R.id.photo_button);
        capturedImageButton.setOnClickListener( new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                Intent photoCaptureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
                startActivityForResult(photoCaptureIntent, requestCode);
            }
        });
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if(this.requestCode == requestCode && resultCode == RESULT_OK){
            Bitmap bitmap = (Bitmap)data.getExtras().get("data");

            String partFilename = currentDateFormat();
            storeCameraPhotoInSDCard(bitmap, partFilename);


        }
    }

    private String currentDateFormat(){
        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyyMMdd_HH_mm_ss");
        String  currentTimeStamp = dateFormat.format(new Date());
        return currentTimeStamp;
    }

    private void storeCameraPhotoInSDCard(Bitmap bitmap, String currentDate){
        File outputFile = new File(Environment.getExternalStorageDirectory(), "photo_" + currentDate + ".jpg");
        try {
            FileOutputStream fileOutputStream = new FileOutputStream(outputFile);
            bitmap.compress(Bitmap.CompressFormat.JPEG, 100, fileOutputStream);
            fileOutputStream.flush();
            fileOutputStream.close();
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }

Answer 1

您应该实现一个使用线程的可运行接口。这样你可以在OnClick方法上调用函数，然后调用Thread.sleep（timeinmilliseconds），然后再次调用onClick方法中的函数，根据需要多次。

以下是如何使用线程的示例：

http://www.wideskills.com/java-tutorial/java-threads-tutorial

在Android中捕获并保存连续图像

1 个答案: