我在图像（片段）上有2个按钮。一个用于使用相机捕获图像，另一个用于从库中选择。我可以捕捉图像并选择图像，但它没有打开新的活动。它再次开放相同的活动。并且还捕获未保存在我的新Directory中的图像。它创建目录但不保存图像。它保存在默认的相机文件夹中。
图像片段代码 - 有2个按钮
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
// return inflater.inflate(R.layout.fragment_images, container, false);
View v = inflater.inflate(R.layout.fragment_images, container, false);
FloatingActionButton btnCamera = (FloatingActionButton) v.findViewById(R.id.btnCamera);
FloatingActionButton btnFolder = (FloatingActionButton) v.findViewById(R.id.btnFolder);
btnCamera.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
File imageFolder = new File(Environment.getExternalStorageDirectory(), "/My Children");
imageFolder.mkdir();
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-mm-dd");
String timestamp = simpleDateFormat.format(new Date());
File image = new File(imageFolder, timestamp+ ".jpg");
Uri uriImage = Uri.fromFile(image);
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
intent.putExtra(MediaStore.EXTRA_OUTPUT, uriImage);
startActivityForResult(intent, TAKE_PICTURE);
}
});
btnFolder.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent intent = new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(intent, SELECT_PICTURE);
}
});
return v;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
// return inflater.inflate(R.layout.fragment_images, container, false);
View v = inflater.inflate(R.layout.fragment_images, container, false);
FloatingActionButton btnCamera = (FloatingActionButton) v.findViewById(R.id.btnCamera);
FloatingActionButton btnFolder = (FloatingActionButton) v.findViewById(R.id.btnFolder);
btnCamera.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
File imageFolder = new File(Environment.getExternalStorageDirectory(), "/My Children");
imageFolder.mkdir();
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-mm-dd");
String timestamp = simpleDateFormat.format(new Date());
File image = new File(imageFolder, timestamp+ ".jpg");
Uri uriImage = Uri.fromFile(image);
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
intent.putExtra(MediaStore.EXTRA_OUTPUT, uriImage);
startActivityForResult(intent, TAKE_PICTURE);
}
});
btnFolder.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent intent = new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(intent, SELECT_PICTURE);
}
});
return v;
上传活动 - 我要在哪里展示图片
ImageView imageview = (ImageView) findViewById(R.id.imageview);
Intent intent = getIntent();
Bitmap bitmap = (Bitmap) intent.getParcelableExtra("image");
imageview.setImageBitmap(bitmap);
logcat的
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.smiles.mychildren, PID: 5019
android.os.FileUriExposedException: file:///storage/emulated/0/My%20Children/2018-19-09.jpg exposed beyond app through ClipData.Item.getUri()
at android.os.StrictMode.onFileUriExposed(StrictMode.java:1799)
at android.net.Uri.checkFileUriExposed(Uri.java:2346)
at android.content.ClipData.prepareToLeaveProcess(ClipData.java:832)
at android.content.Intent.prepareToLeaveProcess(Intent.java:8909)
at android.content.Intent.prepareToLeaveProcess(Intent.java:8894)
at android.app.Instrumentation.execStartActivity(Instrumentation.java:1517)
at android.app.Activity.startActivityForResult(Activity.java:4224)
at android.support.v4.app.BaseFragmentActivityApi16.startActivityForResult(BaseFragmentActivityApi16.java:54)
at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:67)
at android.support.v4.app.ActivityCompat.startActivityForResult(ActivityCompat.java:152)
at android.support.v4.app.FragmentActivity.startActivityFromFragment(FragmentActivity.java:798)
at android.support.v4.app.FragmentActivity$HostCallbacks.onStartActivityFromFragment(FragmentActivity.java:907)
at android.support.v4.app.Fragment.startActivityForResult(Fragment.java:1028)
at android.support.v4.app.Fragment.startActivityForResult(Fragment.java:1017)
at com.smiles.mychildren.Images$1.onClick(Images.java:98)
at android.view.View.performClick(View.java:5609)
at android.view.View$PerformClick.run(View.java:22259)
at android.os.Handler.handleCallback(Handler.java:751)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6077)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:865)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)
答案 0 :(得分：0)
您在这里做错了，在startActivityForResult调用后添加参数。
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(intent, TAKE_PICTURE);
intent.putExtra(MediaStore.EXTRA_OUTPUT, uriImage);
只需更改此
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
intent.putExtra(MediaStore.EXTRA_OUTPUT, uriImage);
startActivityForResult(intent, TAKE_PICTURE);
您也可以为图片捕获和从图库中选择图片设置相同的请求代码，您必须设置不同的请求代码。
您将RESULT_OK与resultCode映射错误。只是改变这一点。
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == TAKE_PICTURE && resultCode== RESULT_OK){
Bitmap bitmap = (Bitmap) data.getExtras().get("data");
Intent i = new Intent(getActivity(), Upload.class);
i.putExtra("image", bitmap);
startActivity(i);
}
//TAKE_PICTURE(int 1) request code for camera capture
//PICK_PICTURE_FROM_GALLERY (int 2) code for select image from gallery.
if (requestCode == PICK_PICTURE_FROM_GALLERY && resultCode== RESULT_OK){
Bitmap bitmap = (Bitmap) data.getExtras().get("data");
Intent i = new Intent(getActivity(), Upload.class);
i.putExtra("image", bitmap);
startActivity(i);
}
}
答案 1 :(得分：0)
首先在permission -
manifest.xml
<uses-feature
android:name="android.hardware.camera"
android:required="true" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
使用相机拍摄图像
//capture image from camera
private void dispatchTakePictureIntent() {
Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
if (takePictureIntent.resolveActivity(getPackageManager()) != null) {
startActivityForResult(takePictureIntent, ConstantCollection.REQUEST_IMAGE_CAPTURE);
}
}
使用Intent.ACTION_PICK作为Intent从图库中挑选图片 -
/pic image from gallery
private void pickImageFromGallery(){
Intent photoPickerIntent = new Intent(Intent.ACTION_PICK);
photoPickerIntent.setType("image/*");
startActivityForResult(photoPickerIntent, ConstantCollection.REQUEST_IMAGE_GALLERY);
}
并在OnActivityResult() -
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
//for camera capture
if (requestCode == ConstantCollection.REQUEST_IMAGE_CAPTURE && resultCode == RESULT_OK && data != null) {
Bundle extras = data.getExtras();
Bitmap imageBitmap = (Bitmap) extras.get("data");
Intent i = new Intent(getActivity(), Upload.class);
i.putExtra("image", imageBitmap );
startActivity(i);
}
//for gallery
if (requestCode == ConstantCollection.REQUEST_IMAGE_GALLERY && resultCode == RESULT_OK && data != null) {
// Let's read picked image data - its URI
Uri pickedImage = data.getData();
// Let's read picked image path using content resolver
String[] filePath = { MediaStore.Images.Media.DATA };
Cursor cursor = getContentResolver().query(pickedImage, filePath, null, null, null);
cursor.moveToFirst();
String imagePath = cursor.getString(cursor.getColumnIndex(filePath[0]));
BitmapFactory.Options options = new BitmapFactory.Options();
options.inPreferredConfig = Bitmap.Config.ARGB_8888;
Bitmap bitmap = BitmapFactory.decodeFile(imagePath, options);
cursor.close();
Intent i = new Intent(getActivity(), Upload.class);
i.putExtra("image", bitmap);
startActivity(i);
}
}