i am building a app in which user can capture image from camera and then edit that image and store / display the image in a gridview.the problem i am facing is that when the user capture the image instead of crop the image it directly display it in gridview . i need help in this thanks in advance this is my code
我正在构建一个应用程序，用户可以从相机中捕获图像，然后编辑该图像并在gridview中存储/显示图像。我面临的问题是，当用户捕获图像而不是裁剪图像时，它直接显示它在gridview中。我需要帮助，在这之前，这是我的代码
public class MainActivity extends Activity implements OnClickListener {
Button captureBtn = null;
final int CAMERA_CAPTURE = 1;
private Uri picUri;
private DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
private GridView grid;
private List<String> listOfImagesPath;
Intent CropIntent;
public static final String GridViewDemo_ImagePath = Environment.getExternalStorageDirectory().getAbsolutePath() + "/GridViewDemo/";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
captureBtn = (Button)findViewById(R.id.capture_btn1);
captureBtn.setOnClickListener(this);
grid = ( GridView) findViewById(R.id.gridviewimg);
listOfImagesPath = null;
listOfImagesPath = RetriveCapturedImagePath();
if(listOfImagesPath!=null){
grid.setAdapter(new ImageListAdapter(this,listOfImagesPath));
}
}
public void ImageCropFunction() {
// Image Crop Code
try {
CropIntent = new Intent("com.android.camera.action.CROP");
CropIntent.setDataAndType(picUri, "image/*");
CropIntent.putExtra("crop", "true");
CropIntent.putExtra("outputX", 180);
CropIntent.putExtra("outputY", 180);
CropIntent.putExtra("aspectX", 3);
CropIntent.putExtra("aspectY", 4);
CropIntent.putExtra("scaleUpIfNeeded", true);
CropIntent.putExtra("return-data", true);
startActivityForResult(CropIntent, 1);
} catch (ActivityNotFoundException e) {
}
}
//Image Crop Code End Here
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu, menu);
return true;
}
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
if (arg0.getId() == R.id.capture_btn1) {
try {
//use standard intent to capture an image
Intent captureIntent = new
Intent(MediaStore.ACTION_IMAGE_CAPTURE);
//we will handle the returned data in onActivityResult
startActivityForResult(captureIntent, CAMERA_CAPTURE);
} catch(ActivityNotFoundException anfe){
//display an error message
String errorMessage = "Whoops - your device doesn't support
capturing images!";
Toast toast = Toast.makeText(this, errorMessage,
Toast.LENGTH_SHORT);
toast.show();
}
}
}
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == RESULT_OK) {
//user is returning from capturing an image using the camera
if(requestCode == CAMERA_CAPTURE){
ImageCropFunction();
Bundle extras = data.getExtras();
Bitmap thePic = extras.getParcelable("data");
String imgcurTime = dateFormat.format(new Date());
File imageDirectory = new File(GridViewDemo_ImagePath);
imageDirectory.mkdirs();
String _path = GridViewDemo_ImagePath + imgcurTime+".jpg";
try {
FileOutputStream out = new FileOutputStream(_path);
thePic.compress(Bitmap.CompressFormat.JPEG, 90, out);
out.close();
} catch (FileNotFoundException e) {
e.getMessage();
} catch (IOException e) {
e.printStackTrace();
}
listOfImagesPath = null;
listOfImagesPath = RetriveCapturedImagePath();
if(listOfImagesPath!=null){
grid.setAdapter(new ImageListAdapter(this,listOfImagesPath));
}
}
}
}
private List<String> RetriveCapturedImagePath() {
List<String> tFileList = new ArrayList<String>();
File f = new File(GridViewDemo_ImagePath);
if (f.exists()) {
File[] files=f.listFiles();
Arrays.sort(files);
for(int i=0; i<files.length; i++){
File file = files[i];
if(file.isDirectory())
continue;
tFileList.add(file.getPath());
}
}
return tFileList;
}
public class ImageListAdapter extends BaseAdapter
{
private Context context;
private List<String> imgPic;
public ImageListAdapter(Context c, List<String> thePic)
{
context = c;
imgPic = thePic;
}
public int getCount() {
if(imgPic != null)
return imgPic.size();
else
return 0;
}
//---returns the ID of an item---
public Object getItem(int position) {
return position;
}
public long getItemId(int position) {
return position;
}
//---returns an ImageView view---
public View getView(int position, View convertView, ViewGroup parent)
{
ImageView imageView;
BitmapFactory.Options bfOptions=new BitmapFactory.Options();
bfOptions.inDither=false; //Disable Dithering mode
bfOptions.inPurgeable=true; //Tell to gc that whether it needs free memory, the Bitmap can be cleared
bfOptions.inInputShareable=true; //Which kind of reference will be used to recover the Bitmap data after being clear, when it will be used in the future
bfOptions.inTempStorage=new byte[32 * 1024];
if (convertView == null) {
imageView = new ImageView(context);
imageView.setLayoutParams(new GridView.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT));
imageView.setPadding(0, 0, 0, 0);
} else {
imageView = (ImageView) convertView;
}
FileInputStream fs = null;
Bitmap bm;
try {
fs = new FileInputStream(new File(imgPic.get(position).toString()));
if(fs!=null) {
bm=BitmapFactory.decodeFileDescriptor(fs.getFD(), null, bfOptions);
imageView.setImageBitmap(bm);
imageView.setId(position);
imageView.setLayoutParams(new GridView.LayoutParams(200, 160));
}
} catch (IOException e) {
e.printStackTrace();
} finally{
if(fs!=null) {
try {
fs.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
return imageView;
}
}
}
2 个解决方案
#1
0
Let me know if it works
如果有效，请告诉我
first of all change
首先是改变
startActivityForResult(CropIntent, 1);
to
至
`startActivityForResult(CropIntent, 2);`
and add to onActivityResult add this:
并添加到onActivityResult添加此：
picUri = Uri.parse(_path);
after that in your onActivityResult remove
之后在你的onActivityResult中删除
listOfImagesPath = null;
listOfImagesPath = RetriveCapturedImagePath();
if(listOfImagesPath!=null){
grid.setAdapter(new ImageListAdapter(this,listOfImagesPath));
}
and add new result like
并添加新的结果，如
if(requestCode == CAMERA_CAPTURE){
....
} else if(requestCode == 2){
..
}
and last step in your new statement add this line:
并在新语句的最后一步添加以下行：
else if(requestCode == 2){
listOfImagesPath = null;
listOfImagesPath = RetriveCapturedImagePath();
if(listOfImagesPath!=null){
grid.setAdapter(new ImageListAdapter(this,listOfImagesPath));
}
}
#2
0
https://github.com/ArthurHub/Android-Image-Cropper Use this library. It's very easy to use
https://github.com/ArthurHub/Android-Image-Cropper使用此库。它非常易于使用
#1
0
Let me know if it works
如果有效，请告诉我
first of all change
首先是改变
startActivityForResult(CropIntent, 1);
to
至
`startActivityForResult(CropIntent, 2);`
and add to onActivityResult add this:
并添加到onActivityResult添加此：
picUri = Uri.parse(_path);
after that in your onActivityResult remove
之后在你的onActivityResult中删除
listOfImagesPath = null;
listOfImagesPath = RetriveCapturedImagePath();
if(listOfImagesPath!=null){
grid.setAdapter(new ImageListAdapter(this,listOfImagesPath));
}
and add new result like
并添加新的结果，如
if(requestCode == CAMERA_CAPTURE){
....
} else if(requestCode == 2){
..
}
and last step in your new statement add this line:
并在新语句的最后一步添加以下行：
else if(requestCode == 2){
listOfImagesPath = null;
listOfImagesPath = RetriveCapturedImagePath();
if(listOfImagesPath!=null){
grid.setAdapter(new ImageListAdapter(this,listOfImagesPath));
}
}
#2
0
https://github.com/ArthurHub/Android-Image-Cropper Use this library. It's very easy to use
https://github.com/ArthurHub/Android-Image-Cropper使用此库。它非常易于使用