捕捉相機圖像並把它放到Gridview中

Question

我有一個問題。我用的是bumtech滑翔機庫，當我點擊，並試圖捕捉攝像機圖像總是成爲一個錯誤：

6-01 02:17:06.217 1696-1696/com.sportfriend.app E/AndroidRuntime: FATAL EXCEPTION: main 
Process: com.sportfriend.app, PID: 1696 
android.os.FileUriExposedException: file:///storage/emulated/0/Pictures/Sportfriend/SF20170601021706.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:845) 
at android.content.Intent.prepareToLeaveProcess(Intent.java:8941) 
at android.content.Intent.prepareToLeaveProcess(Intent.java:8926) 
at android.app.Instrumentation.execStartActivity(Instrumentation.java:1517) 
at android.app.Activity.startActivityForResult(Activity.java:4225) 
at android.support.v4.app.BaseFragmentActivityJB.startActivityForResult(BaseFragmentActivityJB.java:50) 
at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:79) 
at android.app.Activity.startActivityForResult(Activity.java:4183) 
at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:859) 
at com.sportfriend.app.GalleryActivityMain.cameraIntent(GalleryActivityMain.java:140) 
at com.sportfriend.app.GalleryActivityMain.getPhoto(GalleryActivityMain.java:82) 
at com.sportfriend.app.GalleryActivityMain.access$000(GalleryActivityMain.java:28) 
at com.sportfriend.app.GalleryActivityMain$1.onClick(GalleryActivityMain.java:56) 
at android.view.View.performClick(View.java:5637) 
at android.view.View$PerformClick.run(View.java:22429) 
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:6119) 
at java.lang.reflect.Method.invoke(Native Method) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776) 

塊引用

public class GalleryActivityMain extends AppCompatActivity { 
 
    private Button btnPhoto; 
 
    private GridView gridView; 
 
    private GridViewAdapter gridAdapter; 
 
    private List<String> imageItems; 
 
    private String imagePath=""; 
 
    private File myDir; 
 
    private File filePath; 
 
    private static final int REQUEST_IMAGE_CAPTURE = 1; 
 
    private static final int REQUEST_EXTERNAL_STORAGE_RESULT = 2; 
 
    private static final int REQUEST_CAMERA_RESULT = 3; 
 

 
    @Override 
 
    protected void onCreate(Bundle savedInstanceState) { 
 
     super.onCreate(savedInstanceState); 
 
     setContentView(R.layout.activity_main_gallery); 
 

 
     createAppDirectory(); 
 

 
     imagePath = Environment.getExternalStorageDirectory().toString()+"/Sportfriend"; 
 
     imageItems = new ArrayList<>(); 
 

 
     btnPhoto = (Button) findViewById(R.id.btnPhoto); 
 
     btnPhoto.setOnClickListener(new View.OnClickListener() { 
 
      @Override 
 
      public void onClick(View v) { 
 

 

 
       getPhoto(); 
 

 
      } 
 
     }); 
 
     getImages(); 
 

 
     gridView = (GridView) findViewById(R.id.gridView); 
 
     gridAdapter = new GridViewAdapter(this, R.layout.grid_item, imageItems); 
 

 
     gridView.setOnItemClickListener(new AdapterView.OnItemClickListener() { 
 
      public void onItemClick(AdapterView<?> parent, View v, int position, long id) { 
 
       String imagePath = ((TextView) v.findViewById(R.id.text)).getText().toString(); 
 
       Intent intent = new Intent(GalleryActivityMain.this, DetailActivity.class); 
 
       intent.putExtra("imagePath", imagePath); 
 

 
       startActivity(intent); 
 
      } 
 
     }); 
 

 
     gridView.setAdapter(gridAdapter); 
 
    } 
 

 
    private void getPhoto(){ 
 
     if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M){ 
 
      if ((ContextCompat.checkSelfPermission(this, android.Manifest.permission.CAMERA) == PackageManager.PERMISSION_GRANTED)){ 
 
       if ((ContextCompat.checkSelfPermission(this, android.Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED)){ 
 
        cameraIntent(); 
 
       }else { 
 
        if (shouldShowRequestPermissionRationale(android.Manifest.permission.WRITE_EXTERNAL_STORAGE)){ 
 
         Toast.makeText(this, "Berechtigung zum Speichern ben�tigt", Toast.LENGTH_LONG).show(); 
 
        } 
 
        requestPermissions(new String[]{android.Manifest.permission.WRITE_EXTERNAL_STORAGE},REQUEST_EXTERNAL_STORAGE_RESULT); 
 
       } 
 
      }else { 
 
       if (shouldShowRequestPermissionRationale(android.Manifest.permission.CAMERA)){ 
 
        Toast.makeText(this,"Berechtigung zum Speichern ben�tigt",Toast.LENGTH_LONG).show(); 
 
       } 
 
       requestPermissions(new String[]{android.Manifest.permission.CAMERA},REQUEST_CAMERA_RESULT); 
 
      } 
 
     }else { 
 
      cameraIntent(); 
 
     } 
 
    } 
 

 
    @Override 
 
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int [] grantResults){ 
 

 
     if (requestCode == REQUEST_EXTERNAL_STORAGE_RESULT){ 
 
      if (grantResults[0] == PackageManager.PERMISSION_GRANTED){ 
 
       getPhoto(); 
 
      }else { 
 
       Toast.makeText(this,"Berechtigung verweigert !!!",Toast.LENGTH_LONG).show(); 
 
      } 
 
     }else if (requestCode == REQUEST_CAMERA_RESULT){ 
 
      if (grantResults[0] == PackageManager.PERMISSION_GRANTED){ 
 
       getPhoto(); 
 
      }else { 
 
       Toast.makeText(this, " Kein Zugriff auf Camera",Toast.LENGTH_LONG).show(); 
 
      } 
 
     }else { 
 
      super.onRequestPermissionsResult(requestCode,permissions,grantResults); 
 
     } 
 
    } 
 

 
    private void createAppDirectory(){ 
 
     String root = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES).toString(); 
 
     myDir = new File(root + "/Sportfriend"); 
 
     if (!myDir.exists()){ 
 
      myDir.mkdirs(); 
 
     } 
 
    } 
 

 
    private void cameraIntent(){ 
 

 
     SimpleDateFormat formatter = new SimpleDateFormat("yyyyMMddHHmmss", java.util.Locale.getDefault()); 
 
     Date date = new Date(); 
 
     String sDate = formatter.format(date); 
 
     String imageName = "SF" + sDate + ".jpg"; 
 

 
     try{ 
 
      Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); 
 
      filePath = new File(myDir, imageName); 
 
      intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(filePath)); 
 

 
      startActivityForResult(intent , REQUEST_IMAGE_CAPTURE); 
 
     }catch (ActivityNotFoundException e){ 
 
      String errorText = "Funktion wird auf Ihren Ger�t nicht Unterst�tzt!"; 
 
      Toast.makeText(this, errorText,Toast.LENGTH_LONG).show(); 
 
     } 
 
    } 
 

 
    private List<String> getImages(){ 
 
     new File(imagePath).mkdirs(); 
 

 
     File fileTarget = new File(imagePath); 
 
     File[] files = fileTarget.listFiles(); 
 

 
     imageItems.clear(); 
 

 
     if (files!=null){ 
 
      for (File file: files){ 
 
       imageItems.add(file.getAbsolutePath()); 
 
      } 
 
     } 
 

 
     return imageItems; 
 
    } 
 

 

 
    @Override 
 
    protected void onActivityResult(int requestCode, int resultCode, Intent data) 
 
    { 
 
     getImages(); 
 
     gridAdapter.notifyDataSetChanged(); 
 

 
    } 
 

 

 

 

 

 
}

一個試圖用Fileprovider，但它不運行。

Answer 1

private void cameraIntent() 
{ 
    if (Build.VERSION.SDK_INT >= 23) 
    { 
     File path = new File(Environment.getExternalStorageDirectory(), "DCIM/Camera"); 
     if (!path.exists()) path.mkdirs(); 
     File image = new File(path, "image.jpg"); 
     Uri imageUri = FileProvider.getUriForFile(this, BuildConfig.APPLICATION_ID + ".provider", image); 
     Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); 
     intent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri); 
     intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION); 
     intent.addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION); 
     startActivityForResult(intent, REQUEST_CAMERA); 
    } 
    else 
    { 
     File path = new File(Environment.getExternalStorageDirectory(), "DCIM/Camera"); 
     if (!path.exists()) path.mkdirs(); 
     File image = new File(path, "image.jpg"); 
     Uri imageUri = Uri.fromFile(image); 
     Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); 
     intent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri); 
     startActivityForResult(intent, REQUEST_CAMERA); 
    } 
}