Beiträge von Eddi

public class Startseite extends AppCompatActivity
{
    protected void onCreate(Bundle savedInstanceState)
    {
	super.onCreate(savedInstanceState);
	setContentView(R.layout.activity_startseite);


	m_framelayout = findViewById(R.id.id_framelayout);


	m_fragment_termine = new Termine();
	FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
	transaction.replace(R.id.id_framelayout, m_fragment_termine);
	transaction.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_OPEN);
	//transaction.addToBackStack(null);
	transaction.commit();
    }
}


public class Termine extends Fragment
{
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
    {
        View root_view = inflater.inflate(R.layout.fragment_termine, container, false);


	m_viewPager = root_view.findViewById(R.id.id_viewPager);


	m_fragment_termine_1 = new TermineSub();
	m_fragment_termine_2 = new TermineSub();
	m_fragment_termine_3 = new TermineSub();
	m_adapter_fragmente = new AdapterFragmente(getActivity().getSupportFragmentManager());
	m_adapter_fragmente.addFragment(m_fragment_termine_1);
	m_adapter_fragmente.addFragment(m_fragment_termine_2);
	m_adapter_fragmente.addFragment(m_fragment_termine_3);
	m_viewPager.setAdapter(m_adapter_fragmente);
    }
}


public class TermineSub extends Fragment
{
	...
}


public class AdapterFragmente extends FragmentStatePagerAdapter
{
    public final List<Fragment> mFragmentList = new ArrayList<>();
    private FragmentManager mFragmentManager;


    public AdapterFragmente(FragmentManager manager)
    {
        super(manager);
        this.mFragmentManager = manager;
        mFragmentList.clear();
    }


    @Override
    public Fragment getItem(int position)
    {
        return mFragmentList.get(position);
    }


    @Override
    public int getCount()
    {
        return mFragmentList.size();
    }


    public void addFragment(Fragment fragment)
    {
        mFragmentList.add(fragment);
        notifyDataSetChanged();
    }


    public void deleteFragment(Fragment fragment)
    {
        mFragmentList.remove(fragment);
//        FragmentTransaction transaction = mFragmentManager.beginTransaction(); //(funktioniert nicht, fragmente werden nicht gelöscht)
//        transaction.remove(fragment);
//        transaction.commit();
        notifyDataSetChanged();
    }
}

File storage_dir = getExternalFilesDir(Environment.DIRECTORY_PICTURES);


File[] files = storage_dir.listFiles();


for( File file : files)
{


}

File storage_dir = getDir("/sdcard/mydata/in", MODE_APPEND);


File[] files = storage_dir.listFiles();


for( File file : files)
{


}

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    tools:context=".StartseiteFragmentHinweis">


    <android.support.v7.widget.CardView
        android:id="@+id/id_cardview"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_marginBottom="3dp"
        android:layout_marginEnd="2dp"
        android:layout_marginStart="2dp"
        android:layout_marginTop="5dp"
        app:cardCornerRadius="5dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent">


        <android.support.constraint.ConstraintLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent">


            <EditText
                android:id="@+id/id_edittext_hinweis"
                android:layout_width="0dp"
                android:layout_height="match_parent"
                android:layout_marginEnd="8dp"
                android:layout_marginStart="8dp"
                android:layout_marginTop="3dp"
                android:ems="10"
                android:gravity="top"
                android:inputType="textMultiLine"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toTopOf="parent"/>


        </android.support.constraint.ConstraintLayout>
    </android.support.v7.widget.CardView>


    <android.support.design.widget.FloatingActionButton
        android:id="@+id/id_floating_action_button_schliessen"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginEnd="10dp"
        android:layout_marginBottom="14dp"
        android:clickable="true"
        app:backgroundTint="@color/colorAccent"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:srcCompat="@drawable/ic_button_zurueck_white"/>


</android.support.constraint.ConstraintLayout>

public void onActivityResult(int requestCode, int resultCode, Intent data)
    {
        super.onActivityResult(requestCode, resultCode, data);


        switch (resultCode)
        {
            case Activity.RESULT_OK:
            {
                Bundle extras = data.getExtras();


                Bitmap imageBitmap = (Bitmap) extras.get("data");


                m_view_imagebutton_bild.setImageBitmap(imageBitmap);


                //m_view_imagebutton_bild.setImageURI(file);
            }
            break;


            case Activity.RESULT_CANCELED:
            {
                // Abbruchmeldung anzeigen...
            }
            break;
        }
    }

<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.CAMERA"/>
<uses-feature 
    android:name="android.hardware.camera"
    android:required="true" />


....


        <provider
            android:name="android.support.v4.content.FileProvider"
            android:authorities="de.domain.app.fileprovider"
            android:exported="false"
            android:grantUriPermissions="true">
        <meta-data
                android:name="android.support.FILE_PROVIDER_PATHS"
                android:resource="@xml/provider_paths"/>
        </provider>

protected void BildAufnehmen()
    {
        Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);


        if (takePictureIntent.resolveActivity(getContext().getPackageManager()) != null)
        {
            File photoFile = null;


            try
            {
                photoFile = createImageFile();
            }
            catch (Exception e)
            {
                e.getStackTrace();
            }


            if (photoFile != null)
            {
                try
                {
                    Uri photoURI = FileProvider.getUriForFile(getActivity(),
                            "de.domain.app.fileprovider",
                            photoFile);


                    takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, photoURI);


                    startActivityForResult(takePictureIntent, 101);
                }
                catch(Exception e)
                {
                    e.printStackTrace();
                }
            }
        }
    }


    private File createImageFile()
    {
        String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());


        String imageFileName = "jpeg_" + timeStamp + "_";


        File storageDir = getActivity().getExternalFilesDir("bilder");


        if (!storageDir.exists())
        {
            if (!storageDir.mkdirs())
            {
                return null;
            }
        }


        File image = null;


        try
        {
            image = File.createTempFile(
                    imageFileName,  /* prefix */
                    ".jpg",   /* suffix */
                    storageDir      /* directory */
            );
        }
        catch (IOException e)
        {
            e.printStackTrace();
        }


        mCurrentPhotoPath = image.getAbsolutePath();


        return image;
    }