android调用系统照相机并保持图片到本地 .

1.调用系统照相机

// 照相
public void takePhotos(View view) {
    Intent cameraIntent = new Intent(
            android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
    startActivityForResult(cameraIntent, CAMERA_REQUEST);
}

	// 照相
	public void takePhotos(View view) {
		Intent cameraIntent = new Intent(
				android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
		startActivityForResult(cameraIntent, CAMERA_REQUEST);
	}

@Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {   //此处进行处理
        // TODO Auto-generated method stub
        if(requestCode == CAMERA_REQUEST && resultCode == RESULT_OK && data.getExtras().get("data")!=null){
            if(rsd.getPhoto1URL() != null){  //删除上一张图片信息
                deleteImgage(rsd.getPhoto1URL());
            }
            Bitmap photo = (Bitmap)data.getExtras().get("data");
            File baseFile = FileHelper.getPicBaseFile();
            if(baseFile == null){
                showLongMessage("SD卡不可用,请检查SD卡情况");
                return;
            }
            String fileName = getFileName();   //图片名称
            rsd.setPhoto1URL(fileName);
            saveBitmap(photo, fileName, baseFile);
            imgPhoto.setImageBitmap(photo);
        }

        super.onActivityResult(requestCode, resultCode, data);
    }

@Override
	protected void onActivityResult(int requestCode, int resultCode, Intent data) {   //此处进行处理
		// TODO Auto-generated method stub
		if(requestCode == CAMERA_REQUEST && resultCode == RESULT_OK && data.getExtras().get("data")!=null){
			if(rsd.getPhoto1URL() != null){  //删除上一张图片信息
				deleteImgage(rsd.getPhoto1URL());
			}
			Bitmap photo = (Bitmap)data.getExtras().get("data");
			File baseFile = FileHelper.getPicBaseFile();
			if(baseFile == null){
				showLongMessage("SD卡不可用,请检查SD卡情况");
				return;
			}
			String fileName = getFileName();   //图片名称
			rsd.setPhoto1URL(fileName);
			saveBitmap(photo, fileName, baseFile);
			imgPhoto.setImageBitmap(photo);
		}
		
		super.onActivityResult(requestCode, resultCode, data);
	}

2.

//获取文件名
private String getFileName(){
    SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmss",Locale.getDefault());
    Date cruDate = Calendar.getInstance().getTime();
    String strDate = sdf.format(cruDate);
    String userName = Config.getUser(Question_Record.this).getLoginName();
    String fileName = userName + strDate+".jpg";
    return fileName;
}

	//获取文件名
	private String getFileName(){
		SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmss",Locale.getDefault());
		Date cruDate = Calendar.getInstance().getTime();
		String strDate = sdf.format(cruDate);
		String userName = Config.getUser(Question_Record.this).getLoginName();
		String fileName = userName + strDate+".jpg";
		return fileName;
	}

3.

//保存图片
    private void saveBitmap(Bitmap bitmap,String fileName,File baseFile){
        FileOutputStream bos = null;
        File imgFile = new File(baseFile,"/"+fileName);
        try {
            bos = new FileOutputStream(imgFile);
            bitmap.compress(Bitmap.CompressFormat.JPEG, 100, bos);
        } catch (FileNotFoundException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }finally{
            try {
                bos.flush();
                bos.close();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
    }

//保存图片
	private void saveBitmap(Bitmap bitmap,String fileName,File baseFile){
		FileOutputStream bos = null;
		File imgFile = new File(baseFile,"/"+fileName);
		try {
			bos = new FileOutputStream(imgFile);
			bitmap.compress(Bitmap.CompressFormat.JPEG, 100, bos);
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally{
			try {
				bos.flush();
				bos.close();
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
	}

4.文件帮助类

    private static String filePath = "inspect/image";

    /**
     * 图片基础路径
     * @return
     */
    public static File getPicBaseFile() {
        if (Environment.getExternalStorageState().equals(
                Environment.MEDIA_MOUNTED)) {  //文件可用
            File f = new File(Environment.getExternalStorageDirectory(), filePath);
            if(!f.exists()) f.mkdirs();
            return f;
        }else{
            return null;
        }
    }

}

public class FileHelper {
	private static String filePath = "inspect/image";
	
	/**
	 * 图片基础路径
	 * @return
	 */
	public static File getPicBaseFile() {
		if (Environment.getExternalStorageState().equals(
				Environment.MEDIA_MOUNTED)) {  //文件可用
			File f = new File(Environment.getExternalStorageDirectory(), filePath);
			if(!f.exists()) f.mkdirs();
			return f;
		}else{
			return null;
		}
	}
	
}

5.上述的代码已经很详细，如有看不懂的童鞋可和我联系