Android 在照相机活动中将图像从drawable保存到SD卡
我正在做一个项目,通过ImageView从drawable文件夹中读取图像文件,并通过Android 在照相机活动中将图像从drawable保存到SD卡,android,image,camera,save,drawable,Android,Image,Camera,Save,Drawable,我正在做一个项目,通过ImageView从drawable文件夹中读取图像文件,并通过 ImageView view = (ImageView) findViewById(R.id.imageView); view.setOnTouchListener(this); buttonTakePicture = (Button) findViewById(R.id.takepicture); buttonTakePicture.setOnClickListener(new Button.OnClick
ImageView view = (ImageView) findViewById(R.id.imageView);
view.setOnTouchListener(this);
buttonTakePicture = (Button) findViewById(R.id.takepicture);
buttonTakePicture.setOnClickListener(new Button.OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
camera.takePicture(myShutterCallback, myPictureCallback_RAW,
myPictureCallback_JPG);
现在按下拍照按钮后,图像应该保存在SD卡中,它正在拍摄快照,但没有保存图像,代码如下
File file = new File(mScreenshotPath + "/" + System.currentTimeMillis() + ".jpg");
FileOutputStream fos;
try {
imageFileOS = getContentResolver().openOutputStream(uriTarget);
imageFileOS.write(arg0);
imageFileOS.flush();
imageFileOS.close();
fos = new FileOutputStream(file);
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, fos);
fos.close();
Toast.makeText(AndroidCamera.this,
"Image saved: " + uriTarget.toString(),
Toast.LENGTH_LONG).show();
请帮我解决这个问题……提前谢谢你,你可以在Android中保存照片,而不需要输出流和所有其他逻辑。这里有一个简单的食谱,它将做什么,我认为你正试图实现。请特别注意其意图以及如何使用它来设置图像的保存,因为我认为这是您出错的地方
public class PhotoActivity extends Activity implements OnClickListener {
private Button takePicture;
private String path;
private File imageFile;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.your_layout);
takePicture = (Button) findViewById(R.id.button1);
takePicture.setOnClickListener(this);
path = Environment.getExternalStorageDirectory() + "/my_image.png";
imageFile = new File(path);
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.button1:
Intent i = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
Uri uri = Uri.fromFile(imageFile);
i.putExtra(MediaStore.EXTRA_OUTPUT, uri);
startActivity(i);
break;
}
}
}
您可以在Android中保存照片,而不需要输出流和所有其他伴随它的逻辑。这里有一个简单的食谱,它将做什么,我认为你正试图实现。请特别注意其意图以及如何使用它来设置图像的保存,因为我认为这是您出错的地方
public class PhotoActivity extends Activity implements OnClickListener {
private Button takePicture;
private String path;
private File imageFile;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.your_layout);
takePicture = (Button) findViewById(R.id.button1);
takePicture.setOnClickListener(this);
path = Environment.getExternalStorageDirectory() + "/my_image.png";
imageFile = new File(path);
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.button1:
Intent i = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
Uri uri = Uri.fromFile(imageFile);
i.putExtra(MediaStore.EXTRA_OUTPUT, uri);
startActivity(i);
break;
}
}
}
非常有用的,非常有用的。