Improve nullability coverage (#514)

* Switch to in-built RV divider

* Switch getActivity calls to requireActivity

This enforces non-null activity and throws a proper exception when it is
null for some reason.

Signed-off-by: Harsh Shandilya <msfjarvis@gmail.com>
This commit is contained in:
Harsh Shandilya 2019-05-26 12:40:03 +05:30 committed by GitHub
parent 5078da4490
commit b06420eb83
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GPG key ID: 4AEE18F83AFDEB23
5 changed files with 38 additions and 88 deletions

View file

@ -1,52 +0,0 @@
package com.zeapo.pwdstore;
import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.graphics.drawable.Drawable;
import android.view.View;
import androidx.annotation.NonNull;
import androidx.core.content.ContextCompat;
import androidx.recyclerview.widget.RecyclerView;
class DividerItemDecoration extends RecyclerView.ItemDecoration {
private static final int[] ATTRS = new int[]{android.R.attr.listDivider};
private Drawable mDivider;
/**
* Default divider will be used
*/
public DividerItemDecoration(Context context) {
final TypedArray styledAttributes = context.obtainStyledAttributes(ATTRS);
mDivider = styledAttributes.getDrawable(0);
styledAttributes.recycle();
}
/**
* Custom divider will be used
*/
DividerItemDecoration(Context context, int resId) {
mDivider = ContextCompat.getDrawable(context, resId);
}
@Override
public void onDraw(@NonNull Canvas c, @NonNull RecyclerView parent, @NonNull RecyclerView.State state) {
int left = parent.getPaddingLeft();
int right = parent.getWidth() - parent.getPaddingRight();
int childCount = parent.getChildCount();
for (int i = 0; i < childCount; i++) {
View child = parent.getChildAt(i);
RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child.getLayoutParams();
int top = child.getBottom() + params.bottomMargin;
int bottom = top + mDivider.getIntrinsicHeight();
mDivider.setBounds(left, top, right, bottom);
mDivider.draw(c);
}
}
}

View file

@ -11,6 +11,7 @@ import android.view.ViewGroup;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.fragment.app.Fragment;
import androidx.recyclerview.widget.DividerItemDecoration;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;
import com.google.android.material.floatingactionbutton.FloatingActionButton;
@ -51,12 +52,12 @@ public class PasswordFragment extends Fragment {
super.onCreate(savedInstanceState);
String path = getArguments().getString("Path");
settings = PreferenceManager.getDefaultSharedPreferences(getActivity());
settings = PreferenceManager.getDefaultSharedPreferences(requireActivity());
passListStack = new Stack<>();
scrollPosition = new Stack<>();
pathStack = new Stack<>();
recyclerAdapter = new PasswordRecyclerAdapter((PasswordStore) getActivity(), mListener,
PasswordRepository.getPasswords(new File(path), PasswordRepository.getRepositoryDirectory(getActivity()), getSortOrder()));
recyclerAdapter = new PasswordRecyclerAdapter((PasswordStore) requireActivity(), mListener,
PasswordRepository.getPasswords(new File(path), PasswordRepository.getRepositoryDirectory(requireContext()), getSortOrder()));
}
@Override
@ -65,19 +66,19 @@ public class PasswordFragment extends Fragment {
View view = inflater.inflate(R.layout.password_recycler_view, container, false);
// use a linear layout manager
RecyclerView.LayoutManager mLayoutManager = new LinearLayoutManager(getActivity());
RecyclerView.LayoutManager mLayoutManager = new LinearLayoutManager(requireContext());
recyclerView = view.findViewById(R.id.pass_recycler);
recyclerView.setLayoutManager(mLayoutManager);
// use divider
recyclerView.addItemDecoration(new DividerItemDecoration(getActivity(), R.drawable.divider));
recyclerView.addItemDecoration(new DividerItemDecoration(requireContext(), DividerItemDecoration.VERTICAL));
// Set the adapter
recyclerView.setAdapter(recyclerAdapter);
final FloatingActionButton fab = view.findViewById(R.id.fab);
fab.setOnClickListener(v -> ((PasswordStore) getActivity()).createPassword());
fab.setOnClickListener(v -> ((PasswordStore) requireActivity()).createPassword());
registerForContextMenu(recyclerView);
return view;
@ -101,18 +102,17 @@ public class PasswordFragment extends Fragment {
recyclerAdapter.clear();
recyclerAdapter.addAll(PasswordRepository.getPasswords(item.getFile(), PasswordRepository.getRepositoryDirectory(context), getSortOrder()));
((AppCompatActivity) getActivity()).getSupportActionBar().setDisplayHomeAsUpEnabled(true);
((AppCompatActivity) requireActivity()).getSupportActionBar().setDisplayHomeAsUpEnabled(true);
} else {
if (getArguments().getBoolean("matchWith", false)) {
((PasswordStore) getActivity()).matchPasswordWithApp(item);
((PasswordStore) requireActivity()).matchPasswordWithApp(item);
} else {
((PasswordStore) getActivity()).decryptPassword(item);
((PasswordStore) requireActivity()).decryptPassword(item);
}
}
};
} catch (ClassCastException e) {
throw new ClassCastException(context.toString()
+ " must implement OnFragmentInteractionListener");
throw new ClassCastException(context + " must implement OnFragmentInteractionListener");
}
}
@ -124,9 +124,9 @@ public class PasswordFragment extends Fragment {
pathStack.clear();
scrollPosition.clear();
recyclerAdapter.clear();
recyclerAdapter.addAll(PasswordRepository.getPasswords(PasswordRepository.getRepositoryDirectory(getActivity()), getSortOrder()));
recyclerAdapter.addAll(PasswordRepository.getPasswords(PasswordRepository.getRepositoryDirectory(requireContext()), getSortOrder()));
((AppCompatActivity) getActivity()).getSupportActionBar().setDisplayHomeAsUpEnabled(false);
((AppCompatActivity) requireActivity()).getSupportActionBar().setDisplayHomeAsUpEnabled(false);
}
/**
@ -135,8 +135,8 @@ public class PasswordFragment extends Fragment {
public void refreshAdapter() {
recyclerAdapter.clear();
recyclerAdapter.addAll(pathStack.isEmpty() ?
PasswordRepository.getPasswords(PasswordRepository.getRepositoryDirectory(getActivity()), getSortOrder()) :
PasswordRepository.getPasswords(pathStack.peek(), PasswordRepository.getRepositoryDirectory(getActivity()), getSortOrder()));
PasswordRepository.getPasswords(PasswordRepository.getRepositoryDirectory(requireContext()), getSortOrder()) :
PasswordRepository.getPasswords(pathStack.peek(), PasswordRepository.getRepositoryDirectory(requireContext()), getSortOrder()));
}
/**
@ -163,8 +163,8 @@ public class PasswordFragment extends Fragment {
private void recursiveFilter(String filter, File dir) {
// on the root the pathStack is empty
ArrayList<PasswordItem> passwordItems = dir == null ?
PasswordRepository.getPasswords(PasswordRepository.getRepositoryDirectory(getActivity()), getSortOrder()) :
PasswordRepository.getPasswords(dir, PasswordRepository.getRepositoryDirectory(getActivity()), getSortOrder());
PasswordRepository.getPasswords(PasswordRepository.getRepositoryDirectory(requireContext()), getSortOrder()) :
PasswordRepository.getPasswords(dir, PasswordRepository.getRepositoryDirectory(requireContext()), getSortOrder());
boolean rec = settings.getBoolean("filter_recursively", true);
for (PasswordItem item : passwordItems) {
@ -201,7 +201,7 @@ public class PasswordFragment extends Fragment {
*/
public File getCurrentDir() {
if (pathStack.isEmpty())
return PasswordRepository.getRepositoryDirectory(getActivity().getApplicationContext());
return PasswordRepository.getRepositoryDirectory(requireContext());
else
return pathStack.peek();
}

View file

@ -37,8 +37,8 @@ public class PasswordGeneratorDialogFragment extends DialogFragment {
@SuppressLint("SetTextI18n")
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
final Activity callingActivity = getActivity();
AlertDialog.Builder builder = new AlertDialog.Builder(requireActivity());
final Activity callingActivity = requireActivity();
LayoutInflater inflater = callingActivity.getLayoutInflater();
@SuppressLint("InflateParams") final View view = inflater.inflate(R.layout.fragment_pwgen, null);
Typeface monoTypeface = Typeface.createFromAsset(callingActivity.getAssets(), "fonts/sourcecodepro.ttf");
@ -46,7 +46,7 @@ public class PasswordGeneratorDialogFragment extends DialogFragment {
builder.setView(view);
SharedPreferences prefs
= getActivity().getApplicationContext().getSharedPreferences("PasswordGenerator", Context.MODE_PRIVATE);
= requireActivity().getApplicationContext().getSharedPreferences("PasswordGenerator", Context.MODE_PRIVATE);
CheckBox checkBox = view.findViewById(R.id.numerals);
checkBox.setChecked(!prefs.getBoolean("0", false));
@ -87,9 +87,9 @@ public class PasswordGeneratorDialogFragment extends DialogFragment {
ad.setOnShowListener(dialog -> {
setPreferences();
try {
passwordText.setText(PasswordGenerator.INSTANCE.generate(getActivity().getApplicationContext()).get(0));
passwordText.setText(PasswordGenerator.generate(requireActivity().getApplicationContext()).get(0));
} catch (PasswordGenerator.PasswordGeneratorExeption e) {
Toast.makeText(getActivity(), e.getMessage(), Toast.LENGTH_SHORT).show();
Toast.makeText(requireActivity(), e.getMessage(), Toast.LENGTH_SHORT).show();
passwordText.setText("");
}
@ -97,9 +97,9 @@ public class PasswordGeneratorDialogFragment extends DialogFragment {
b.setOnClickListener(v -> {
setPreferences();
try {
passwordText.setText(PasswordGenerator.INSTANCE.generate(callingActivity.getApplicationContext()).get(0));
passwordText.setText(PasswordGenerator.generate(callingActivity.getApplicationContext()).get(0));
} catch (PasswordGenerator.PasswordGeneratorExeption e) {
Toast.makeText(getActivity(), e.getMessage(), Toast.LENGTH_SHORT).show();
Toast.makeText(requireActivity(), e.getMessage(), Toast.LENGTH_SHORT).show();
passwordText.setText("");
}
});
@ -131,9 +131,9 @@ public class PasswordGeneratorDialogFragment extends DialogFragment {
EditText editText = getDialog().findViewById(R.id.lengthNumber);
try {
int length = Integer.valueOf(editText.getText().toString());
PasswordGenerator.INSTANCE.setPrefs(getActivity().getApplicationContext(), preferences, length);
PasswordGenerator.setPrefs(requireActivity().getApplicationContext(), preferences, length);
} catch (NumberFormatException e) {
PasswordGenerator.INSTANCE.setPrefs(getActivity().getApplicationContext(), preferences);
PasswordGenerator.setPrefs(requireActivity().getApplicationContext(), preferences);
}
}
}

View file

@ -9,6 +9,7 @@ import android.view.ViewGroup;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.fragment.app.Fragment;
import androidx.recyclerview.widget.DividerItemDecoration;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;
import com.google.android.material.floatingactionbutton.FloatingActionButton;
@ -46,8 +47,8 @@ public class SelectFolderFragment extends Fragment {
String path = getArguments().getString("Path");
pathStack = new Stack<>();
recyclerAdapter = new FolderRecyclerAdapter((SelectFolderActivity) getActivity(), mListener,
PasswordRepository.getPasswords(new File(path), PasswordRepository.getRepositoryDirectory(getActivity()), getSortOrder()));
recyclerAdapter = new FolderRecyclerAdapter((SelectFolderActivity) requireActivity(), mListener,
PasswordRepository.getPasswords(new File(path), PasswordRepository.getRepositoryDirectory(requireActivity()), getSortOrder()));
}
@Override
@ -57,10 +58,10 @@ public class SelectFolderFragment extends Fragment {
// use a linear layout manager
recyclerView = view.findViewById(R.id.pass_recycler);
recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
recyclerView.setLayoutManager(new LinearLayoutManager(requireContext()));
// use divider
recyclerView.addItemDecoration(new DividerItemDecoration(getActivity(), R.drawable.divider));
recyclerView.addItemDecoration(new DividerItemDecoration(requireContext(), DividerItemDecoration.VERTICAL));
// Set the adapter
recyclerView.setAdapter(recyclerAdapter);
@ -84,7 +85,7 @@ public class SelectFolderFragment extends Fragment {
recyclerAdapter.clear();
recyclerAdapter.addAll(PasswordRepository.getPasswords(item.getFile(), PasswordRepository.getRepositoryDirectory(context), getSortOrder()));
((AppCompatActivity) getActivity()).getSupportActionBar().setDisplayHomeAsUpEnabled(true);
((AppCompatActivity) requireActivity()).getSupportActionBar().setDisplayHomeAsUpEnabled(true);
}
};
} catch (ClassCastException e) {
@ -100,13 +101,13 @@ public class SelectFolderFragment extends Fragment {
*/
public File getCurrentDir() {
if (pathStack.isEmpty())
return PasswordRepository.getRepositoryDirectory(getActivity().getApplicationContext());
return PasswordRepository.getRepositoryDirectory(requireContext());
else
return pathStack.peek();
}
private PasswordRepository.PasswordSortOrder getSortOrder() {
return PasswordRepository.PasswordSortOrder.getSortOrder(PreferenceManager.getDefaultSharedPreferences(getActivity()));
return PasswordRepository.PasswordSortOrder.getSortOrder(PreferenceManager.getDefaultSharedPreferences(requireContext()));
}
public interface OnFragmentInteractionListener {

View file

@ -47,6 +47,7 @@ object PasswordGenerator {
* @return `false` if a numerical options is invalid,
* `true` otherwise
*/
@JvmStatic
fun setPrefs(ctx: Context, argv: ArrayList<String>, vararg numArgv: Int): Boolean {
val prefs = ctx.getSharedPreferences("PasswordGenerator", Context.MODE_PRIVATE)
val editor = prefs.edit()
@ -81,7 +82,7 @@ object PasswordGenerator {
* preferences file 'PasswordGenerator'
* @return list of generated passwords
*/
@Throws(PasswordGenerator.PasswordGeneratorExeption::class)
@JvmStatic @Throws(PasswordGenerator.PasswordGeneratorExeption::class)
fun generate(ctx: Context): ArrayList<String> {
val prefs = ctx.getSharedPreferences("PasswordGenerator", Context.MODE_PRIVATE)
@ -140,6 +141,6 @@ object PasswordGenerator {
return passwords
}
public class PasswordGeneratorExeption(string: String) : Exception(string)
class PasswordGeneratorExeption(string: String) : Exception(string)
}