CrimeBaseHelper.java
package com.example.aster.criminalintent.database.CrimeDbSchema;
import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import com.example.aster.criminalintent.Crime;
import com.example.aster.criminalintent.database.CrimeDbSchema.CrimeDbSchema.CrimeTable;
public class CrimeBaseHelper extends SQLiteOpenHelper {
private static final int VERSION = 1;
private static final String DATABASE_NAME = "crimeBase.db";
public CrimeBaseHelper(Context context) {
super(context, DATABASE_NAME, null, VERSION);
}
@Override
public void onCreate(SQLiteDatabase db) {
db.execSQL("create table " + CrimeTable.NAME + "(" +
" _id integer primary key autoincrement, " +
CrimeTable.Cols.UUID + "," +
CrimeTable.Cols.TITLE + "," +
CrimeTable.Cols.DATE + "," +
CrimeTable.Cols.SOLVED +
")"
);
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
}
}
CrimeCursorWrapper.java
package com.example.aster.criminalintent.database.CrimeDbSchema
import android.database.Cursor
import android.database.CursorWrapper
import com.example.aster.criminalintent.Crime
import java.util.Date
import java.util.UUID
import static com.example.aster.criminalintent.database.CrimeDbSchema.CrimeDbSchema.*
public class CrimeCursorWrapper extends CursorWrapper {
public CrimeCursorWrapper(Cursor cursor) {
super(cursor)
}
public Crime getCrime() {
String uuidString = getString(getColumnIndex(CrimeTable.Cols.UUID))
String title = getString(getColumnIndex(CrimeTable.Cols.TITLE))
long date = getLong(getColumnIndex(CrimeTable.Cols.DATE))
int isSolved = getInt(getColumnIndex(CrimeTable.Cols.SOLVED))
Crime crime = new Crime(UUID.fromString(uuidString))
crime.setTitle(title)
crime.setDate(new Date(date))
crime.setSolved(isSolved != 0)
return crime
}
}
CrimeDbSchema
package com.example.aster.criminalintent.database.CrimeDbSchema;
public class CrimeDbSchema {
public static final class CrimeTable {
public static final String NAME = "crimes";
public static final class Cols {
public static final String UUID = "uuid";
public static final String TITLE = "title";
public static final String DATE = "date";
public static final String SOLVED = "solved";
}
}
}
Crime.java
package com.example.aster.criminalintent;
import java.util.Date;
import java.util.UUID;
public class Crime {
private UUID mId;
private String mTitle;
private Date mDate;
private boolean mSolved;
private String mSuspect;
public Crime() {
this(UUID.randomUUID());
}
public Crime(UUID id) {
mId = id;
mDate = new Date();
}
public UUID getId() {
return mId;
}
public String getTitle() {
return mTitle;
}
public void setTitle(String title) {
mTitle = title;
}
public Date getDate() {
return mDate;
}
public void setDate(Date date) {
mDate = date;
}
public boolean isSolved() {
return mSolved;
}
public void setSolved(boolean solved) {
mSolved = solved;
}
public String getSuspect() {
return mSuspect;
}
public void setSuspect(String suspect) {
mSuspect = suspect;
}
public String getPhotoFilename() {
return "IMG_" + getId().toString() + ".jpg";
}
}
CrimeFragment.java
package com.example.aster.criminalintent;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.net.Uri;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.provider.MediaStore;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.content.FileProvider;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.ImageView;
import java.io.File;
import java.text.DateFormat;
import java.util.Date;
import java.util.List;
import java.util.UUID;
import static android.widget.CompoundButton.*;
public class CrimeFragment extends Fragment {
private static final String ARG_CRIME_ID = "crime_id";
private static final String DIALOG_DATE = "DialogDate";
private static final int REQUEST_DATE = 0;
private static final int REQUEST_CONTACT = 1;
private static final int REQUEST_PHOTO = 2;
private Crime mCrime;
private File mPhotoFile;
private EditText mTitleField;
private Button mDateButton;
private CheckBox mSolvedCheckBox;
private Button mSuspectButton;
private Button mReportButton;
private ImageButton mPhotoButton;
private ImageView mPhotoView;
private Callbacks mCallbacks;
/**
* Required interface for hosting activities
*/
public interface Callbacks {
void onCrimeUpdated(Crime crime);
}
public static CrimeFragment newInstance(UUID crimeId) {
Bundle args = new Bundle();
args.putSerializable(ARG_CRIME_ID, crimeId);
CrimeFragment fragment = new CrimeFragment();
fragment.setArguments(args);
return fragment;
}
@Override
public void onAttach(Context context) {
super.onAttach(context);
mCallbacks = (Callbacks) context;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
UUID crimeId = (UUID) getArguments().getSerializable(ARG_CRIME_ID);
mCrime = CrimeLab.get(getActivity()).getCrime(crimeId);
mPhotoFile = CrimeLab.get(getActivity()).getPhotoFile(mCrime);
}
@Override
public void onPause() {
super.onPause();
CrimeLab.get(getActivity())
.updateCrime(mCrime);
}
@Override
public void onDetach() {
super.onDetach();
mCallbacks = null;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.fragment_crime, container, false);
mTitleField = (EditText) v.findViewById(R.id.crime_title);
mTitleField.setText(mCrime.getTitle());
mTitleField.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
mCrime.setTitle(s.toString());
updateCrime();
}
@Override
public void afterTextChanged(Editable s) {
}
});
mDateButton = (Button) v.findViewById(R.id.crime_date);
updateDate();
mDateButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
FragmentManager manager = getFragmentManager();
DatePickerFragment dialog = DatePickerFragment
.newInstance(mCrime.getDate());
dialog.setTargetFragment(CrimeFragment.this, REQUEST_DATE);
dialog.show(manager, DIALOG_DATE);
}
});
mSolvedCheckBox = (CheckBox) v.findViewById(R.id.crime_solved);
mSolvedCheckBox.setChecked(mCrime.isSolved());
mSolvedCheckBox.setOnCheckedChangeListener(new OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
mCrime.setSolved(isChecked);
updateCrime();
}
});
mReportButton = (Button) v.findViewById(R.id.crime_report);
mReportButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Intent i = new Intent(Intent.ACTION_SEND);
i.setType("text/plain");
i.putExtra(Intent.EXTRA_TEXT, getCrimeReport());
i.putExtra(Intent.EXTRA_SUBJECT,
getString(R.string.crime_report_subject));
i = Intent.createChooser(i, getString(R.string.send_report));
startActivity(i);
}
});
final Intent pickContact = new Intent(Intent.ACTION_PICK,
ContactsContract.Contacts.CONTENT_URI);
mSuspectButton = (Button) v.findViewById(R.id.crime_suspect);
mSuspectButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
startActivityForResult(pickContact, REQUEST_CONTACT);
}
});
if (mCrime.getSuspect() != null) {
mSuspectButton.setText(mCrime.getSuspect());
}
PackageManager packageManager = getActivity().getPackageManager();
if (packageManager.resolveActivity(pickContact,
PackageManager.MATCH_DEFAULT_ONLY) == null) {
mSuspectButton.setEnabled(false);
}
mPhotoButton = (ImageButton) v.findViewById(R.id.crime_camera);
final Intent captureImage = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
boolean canTakePhoto = mPhotoFile != null &&
captureImage.resolveActivity(packageManager) != null;
mPhotoButton.setEnabled(canTakePhoto);
mPhotoButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Uri uri = FileProvider.getUriForFile(getActivity(),
"com.example.aster.criminalintent.fileprovider", mPhotoFile);
captureImage.putExtra(MediaStore.EXTRA_OUTPUT, uri);
List<ResolveInfo> cameraActivities = getActivity()
.getPackageManager().queryIntentActivities(captureImage,
PackageManager.MATCH_DEFAULT_ONLY);
for (ResolveInfo activity : cameraActivities) {
getActivity().grantUriPermission(activity.activityInfo.packageName,
uri, Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
}
startActivityForResult(captureImage, REQUEST_PHOTO);
}
});
mPhotoView = (ImageView) v.findViewById(R.id.crime_photo);
updatePhotoView();
return v;
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode != Activity.RESULT_OK) {
return;
}
if (requestCode == REQUEST_DATE) {
Date date = (Date) data
.getSerializableExtra(DatePickerFragment.EXTRA_DATE);
mCrime.setDate(date);
updateCrime();
updateDate();
} else if (requestCode == REQUEST_CONTACT && data != null) {
Uri contactUri = data.getData();
String[] queryFields = new String[] {
ContactsContract.Contacts.DISPLAY_NAME
};
Cursor c = getActivity().getContentResolver()
.query(contactUri, queryFields, null, null, null);
try {
if (c.getCount() == 0) {
return;
}
c.moveToFirst();
String suspect = c.getString(0);
mCrime.setSuspect(suspect);
updateCrime();
mSuspectButton.setText(suspect);
} finally {
c.close();
}
} else if (requestCode == REQUEST_PHOTO) {
Uri uri = FileProvider.getUriForFile(getActivity(),
"com.example.aster.criminalintent.fileprovider",
mPhotoFile);
getActivity().revokeUriPermission(uri, Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
updateCrime();
updatePhotoView();
}
}
private void updateCrime() {
CrimeLab.get(getActivity()).updateCrime(mCrime);
mCallbacks.onCrimeUpdated(mCrime);
}
private void updateDate() {
mDateButton.setText(mCrime.getDate().toString());
}
private String getCrimeReport() {
String solvedString = null;
if (mCrime.isSolved()) {
solvedString = getString(R.string.crime_report_solved);
} else {
solvedString = getString(R.string.crime_report_unsolved);
}
String dateFormat = "EEE, MMM dd";
String dateString = android.text.format.DateFormat.format(dateFormat, mCrime.getDate()).toString();
String suspect = mCrime.getSuspect();
if (suspect == null) {
suspect = getString(R.string.crime_report_no_suspect);
} else {
suspect = getString(R.string.crime_report_suspect, suspect);
}
String report = getString(R.string.crime_report,
mCrime.getTitle(), dateString, solvedString, suspect);
return report;
}
private void updatePhotoView() {
if (mPhotoFile == null || !mPhotoFile.exists()) {
mPhotoView.setImageDrawable(null);
} else {
Bitmap bitmap = PictureUtils.getScaledBitmap(mPhotoFile.getPath(), getActivity());
mPhotoView.setImageBitmap(bitmap);
}
}
}
CrimeLab.java
package com.example.aster.criminalintent
import android.content.ContentValues
import android.content.Context
import android.database.Cursor
import android.database.sqlite.SQLiteDatabase
import com.example.aster.criminalintent.database.CrimeDbSchema.CrimeBaseHelper
import com.example.aster.criminalintent.database.CrimeDbSchema.CrimeCursorWrapper
import com.example.aster.criminalintent.database.CrimeDbSchema.CrimeDbSchema
import java.io.File
import java.util.ArrayList
import java.util.List
import java.util.UUID
import static com.example.aster.criminalintent.database.CrimeDbSchema.CrimeDbSchema.*
public class CrimeLab {
private static CrimeLab sCrimeLab
private Context mContext
private SQLiteDatabase mDatabase
public static CrimeLab get(Context context) {
if (sCrimeLab == null) {
sCrimeLab = new CrimeLab(context)
}
return sCrimeLab
}
private CrimeLab(Context context) {
mContext = context.getApplicationContext()
mDatabase = new CrimeBaseHelper(mContext)
.getWritableDatabase()
}
public void addCrime(Crime c) {
ContentValues values = getContentValues(c)
mDatabase.insert(CrimeTable.NAME, null, values)
}
public List<Crime> getCrimes() {
List<Crime> crimes = new ArrayList<>()
CrimeCursorWrapper cursor = queryCrimes(null, null)
try {
cursor.moveToFirst()
while (!cursor.isAfterLast()) {
crimes.add(cursor.getCrime())
cursor.moveToNext()
}
} finally {
cursor.close()
}
return crimes
}
public Crime getCrime(UUID id) {
CrimeCursorWrapper cursor = queryCrimes(
CrimeTable.Cols.UUID + " = ?",
new String[] { id.toString() }
)
try {
if (cursor.getCount() == 0) {
return null
}
cursor.moveToFirst()
return cursor.getCrime()
} finally {
cursor.close()
}
}
public File getPhotoFile(Crime crime) {
File filesDir = mContext.getFilesDir()
return new File(filesDir, crime.getPhotoFilename())
}
public void updateCrime(Crime crime) {
String uuidString = crime.getId().toString()
ContentValues values = getContentValues(crime)
mDatabase.update(CrimeTable.NAME, values,
CrimeTable.Cols.UUID + " = ?",
new String[] { uuidString })
}
private CrimeCursorWrapper queryCrimes(String whereClause, String[] whereArgs) {
Cursor cursor = mDatabase.query(
CrimeTable.NAME,
null, // Columns - null selects all columns
whereClause,
whereArgs,
null, // groupBy
null, // having
null // orderBy
)
return new CrimeCursorWrapper(cursor)
}
private static ContentValues getContentValues(Crime crime) {
ContentValues values = new ContentValues()
values.put(CrimeTable.Cols.UUID, crime.getId().toString())
values.put(CrimeTable.Cols.TITLE, crime.getTitle())
values.put(CrimeTable.Cols.DATE, crime.getDate().getTime())
values.put(CrimeTable.Cols.SOLVED, crime.isSolved() ? 1 : 0)
values.put(CrimeTable.Cols.SUSPECT, crime.getSuspect())
return values
}
}
CrimeListActivity.java
package com.example.aster.criminalintent;
import android.content.Intent;
import android.support.v4.app.Fragment;
public class CrimeListActivity extends SingleFragmentActivity
implements CrimeListFragment.Callbacks, CrimeFragment.Callbacks {
@Override
protected Fragment createFragment() {
return new CrimeListFragment();
}
@Override
protected int getLayoutResId() {
return R.layout.activity_masterdetail;
}
@Override
public void onCrimeSelected(Crime crime) {
if (findViewById(R.id.detail_fragment_container) == null) {
Intent intent = CrimePagerActivity.newIntent(this, crime.getId());
startActivity(intent);
} else {
Fragment newDetail = CrimeFragment.newInstance(crime.getId());
getSupportFragmentManager().beginTransaction()
.replace(R.id.detail_fragment_container, newDetail)
.commit();
}
}
public void onCrimeUpdated(Crime crime) {
CrimeListFragment listFragment = (CrimeListFragment)
getSupportFragmentManager()
.findFragmentById(R.id.fragment_container);
listFragment.updateUI();
}
}
CrimeListFragment.java
package com.example.aster.criminalintent;
import android.app.Activity;
import android.app.LoaderManager;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.v4.app.Fragment;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
import java.util.List;
public class CrimeListFragment extends Fragment {
private static final String SAVED_SUBTITLE_VISIBLE = "subtitle";
private RecyclerView mCrimeRecyclerView;
private CrimeAdapter mAdapter;
private boolean mSubtitleVisible;
private Callbacks mCallbacks;
public interface Callbacks {
void onCrimeSelected(Crime crime);
}
@Override
public void onAttach(Context context) {
super.onAttach(context);
mCallbacks = (Callbacks) context;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setHasOptionsMenu(true);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_crime_list, container, false);
mCrimeRecyclerView = (RecyclerView) view.findViewById(R.id.crime_recycler_view);
mCrimeRecyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
if (savedInstanceState != null) {
mSubtitleVisible = savedInstanceState.getBoolean(SAVED_SUBTITLE_VISIBLE);
}
updateUI();
return view;
}
@Override
public void onResume() {
super.onResume();
updateUI();
}
@Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putBoolean(SAVED_SUBTITLE_VISIBLE, mSubtitleVisible);
}
@Override
public void onDetach() {
super.onDetach();
mCallbacks = null;
}
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
super.onCreateOptionsMenu(menu, inflater);
inflater.inflate(R.menu.fragment_crime_list, menu);
MenuItem subtitleItem = menu.findItem(R.id.show_subtitle);
if (mSubtitleVisible) {
subtitleItem.setTitle(R.string.hide_subtitle);
} else {
subtitleItem.setTitle(R.string.show_subtitle);
}
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.new_crime:
Crime crime = new Crime();
CrimeLab.get(getActivity()).addCrime(crime);
updateUI();
mCallbacks.onCrimeSelected(crime);
return true;
case R.id.show_subtitle:
mSubtitleVisible = !mSubtitleVisible;
getActivity().invalidateOptionsMenu();
updateSubtitle();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
private void updateSubtitle() {
CrimeLab crimeLab = CrimeLab.get(getActivity());
int crimeCount = crimeLab.getCrimes().size();
String subtitle = getString(R.string.subtitle_format, crimeCount);
if (!mSubtitleVisible) {
subtitle = null;
}
AppCompatActivity activity = (AppCompatActivity) getActivity();
activity.getSupportActionBar().setSubtitle(subtitle);
}
public void updateUI() {
CrimeLab crimeLab = CrimeLab.get(getActivity());
List<Crime> crimes = crimeLab.getCrimes();
if (mAdapter == null) {
mAdapter = new CrimeAdapter(crimes);
mCrimeRecyclerView.setAdapter(mAdapter);
} else {
mAdapter.setCrimes(crimes);
mAdapter.notifyDataSetChanged();
}
updateSubtitle();
}
private class CrimeHolder extends RecyclerView.ViewHolder
implements View.OnClickListener {
private Crime mCrime;
private TextView mTitleTextView;
private TextView mDateTextView;
private ImageView mSolvedImageView;
public CrimeHolder(LayoutInflater inflater, ViewGroup parent) {
super(inflater.inflate(R.layout.list_item_crime, parent, false));
itemView.setOnClickListener(this);
mTitleTextView = (TextView) itemView.findViewById(R.id.crime_title);
mDateTextView = (TextView) itemView.findViewById(R.id.crime_date);
mSolvedImageView = (ImageView) itemView.findViewById(R.id.crime_solved);
}
public void bind(Crime crime) {
mCrime = crime;
mTitleTextView.setText(mCrime.getTitle());
mDateTextView.setText(mCrime.getDate().toString());
mSolvedImageView.setVisibility(crime.isSolved() ? View.VISIBLE : View.GONE);
}
@Override
public void onClick(View view) {
mCallbacks.onCrimeSelected(mCrime);
}
}
private class CrimeAdapter extends RecyclerView.Adapter<CrimeHolder> {
private List<Crime> mCrimes;
public CrimeAdapter(List<Crime> crimes) {
mCrimes = crimes;
}
@Override
public CrimeHolder onCreateViewHolder(ViewGroup parent, int viewType) {
LayoutInflater layoutInflater = LayoutInflater.from(getActivity());
return new CrimeHolder(layoutInflater, parent);
}
@Override
public void onBindViewHolder(CrimeHolder holder, int position) {
Crime crime = mCrimes.get(position);
holder.bind(crime);
}
@Override
public int getItemCount() {
return mCrimes.size();
}
public void setCrimes(List<Crime> crimes) {
mCrimes = crimes;
}
}
}
package com.example.aster.criminalintent;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentStatePagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import java.util.List;
import java.util.UUID;
public class CrimePagerActivity extends AppCompatActivity
implements CrimeFragment.Callbacks {
private static final String EXTRA_CRIME_ID =
"com.example.aster.criminalintent.crime_id";
private ViewPager mViewPager;
private List<Crime> mCrimes;
public static Intent newIntent(Context packageContext, UUID crimeId) {
Intent intent = new Intent(packageContext, CrimePagerActivity.class);
intent.putExtra(EXTRA_CRIME_ID, crimeId);
return intent;
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_crime_pager);
UUID crimeId = (UUID) getIntent()
.getSerializableExtra(EXTRA_CRIME_ID);
mViewPager = (ViewPager) findViewById(R.id.crime_view_pager);
mCrimes = CrimeLab.get(this).getCrimes();
FragmentManager fragmentManager = getSupportFragmentManager();
mViewPager.setAdapter(new FragmentStatePagerAdapter(fragmentManager) {
@Override
public Fragment getItem(int position) {
Crime crime = mCrimes.get(position);
return CrimeFragment.newInstance(crime.getId());
}
@Override
public int getCount() {
return mCrimes.size();
}
});
for (int i = 0; i < mCrimes.size(); i++) {
if (mCrimes.get(i).getId().equals(crimeId)) {
mViewPager.setCurrentItem(i);
break;
}
}
}
@Override
public void onCrimeUpdated(Crime crime) {
}
}
DatePickerFragment.java
package com.example.aster.criminalintent;
import android.app.Activity;
import android.app.Dialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.DialogFragment;
import android.support.v7.app.AlertDialog;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.DatePicker;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
public class DatePickerFragment extends DialogFragment {
public static final String EXTRA_DATE =
"com.example.aster.criminalintent.date";
private static final String ARG_DATE = "date";
private DatePicker mDatePicker;
public static DatePickerFragment newInstance(Date date) {
Bundle args = new Bundle();
args.putSerializable(ARG_DATE, date);
DatePickerFragment fragment = new DatePickerFragment();
fragment.setArguments(args);
return fragment;
}
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
Date date = (Date) getArguments().getSerializable(ARG_DATE);
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
int year = calendar.get(Calendar.YEAR);
int month = calendar.get(Calendar.MONTH);
int day = calendar.get(Calendar.DAY_OF_MONTH);
View v = LayoutInflater.from(getActivity())
.inflate(R.layout.dialog_date, null);
mDatePicker = (DatePicker) v.findViewById(R.id.dialog_date_picker);
mDatePicker.init(year, month, day, null);
return new AlertDialog.Builder(getActivity())
.setView(v)
.setTitle(R.string.date_picker_title)
.setPositiveButton(android.R.string.ok,
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
int year = mDatePicker.getYear();
int month = mDatePicker.getMonth();
int day = mDatePicker.getDayOfMonth();
Date date = new GregorianCalendar(year, month, day).getTime();
sendResult(Activity.RESULT_OK, date);
}
})
.create();
}
private void sendResult(int resultCode, Date date) {
if (getTargetFragment() == null) {
return;
}
Intent intent = new Intent();
intent.putExtra(EXTRA_DATE, date);
getTargetFragment()
.onActivityResult(getTargetRequestCode(), resultCode, intent);
}
}
PictureUtils.java
package com.example.aster.criminalintent;
import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Point;
public class PictureUtils {
public static Bitmap getScaledBitmap(String path, Activity activity) {
Point size = new Point();
activity.getWindowManager().getDefaultDisplay().getSize(size);
return getScaledBitmap(path, size.x, size.y);
}
public static Bitmap getScaledBitmap(String path, int destWidth, int destHeight) {
BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
BitmapFactory.decodeFile(path, options);
float srcWidth = options.outWidth;
float srcHeight = options.outHeight;
int inSampleSize = 1;
if (srcHeight > destHeight || srcWidth > destWidth) {
float heightScale = srcHeight / destHeight;
float widthScale = srcWidth / destWidth;
inSampleSize = Math.round(heightScale > widthScale ? heightScale : widthScale);
}
options = new BitmapFactory.Options();
options.inSampleSize = inSampleSize;
return BitmapFactory.decodeFile(path, options);
}
}
SingleFragmentActivity.java
package com.example.aster.criminalintent;
import android.os.Bundle;
import android.support.annotation.LayoutRes;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v7.app.AppCompatActivity;
public abstract class SingleFragmentActivity extends AppCompatActivity {
protected abstract Fragment createFragment();
@LayoutRes
protected int getLayoutResId() {
return R.layout.activity_fragment;
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(getLayoutResId());
FragmentManager fm = getSupportFragmentManager();
Fragment fragment = fm.findFragmentById(R.id.fragment_container);
if (fragment == null) {
fragment = createFragment();
fm.beginTransaction().add(R.id.fragment_container, fragment).commit();
}
}
}
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.aster.criminalintent">
<uses-feature android:name="android.hardware.camera"
android:required="false"
/>
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".CrimeListActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".CrimePagerActivity"
android:parentActivityName=".CrimeListActivity">
</activity>
<provider
android:name="android.support.v4.content.FileProvider"
android:authorities="com.example.aster.criminalintent.fileprovider"
android:exported="false"
android:grantUriPermissions="true">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="@xml/files" />
</provider>
</application>
</manifest>
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.view.ViewPager
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/crime_view_pager"
android:layout_width="match_parent"
android:layout_height="match_parent">
</android.support.v4.view.ViewPager>
activity_fragment.xml
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/fragment_container"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
activity_twopane.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:divider="?android:attr/dividerHorizontal"
android:showDividers="middle"
android:orientation="horizontal">
<FrameLayout
android:id="@+id/fragment_container"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1">
</FrameLayout>
<FrameLayout
android:id="@+id/detail_fragment_container"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="3">
</FrameLayout>
</LinearLayout>
dialog_date.xml
<?xml version="1.0" encoding="utf-8"?>
<DatePicker
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/dialog_date_picker"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:calendarViewShown="false">
</DatePicker>
fragment_crime.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="16dp"
android:orientation="vertical">
<LinearLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="16dp"
android:layout_marginTop="16dp">
<LinearLayout
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<ImageView
android:id="@+id/crime_photo"
android:layout_width="80dp"
android:layout_height="80dp"
android:scaleType="centerInside"
android:cropToPadding="true"
android:background="@android:color/darker_gray" />
<ImageButton
android:id="@+id/crime_camera"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:src="@android:drawable/ic_menu_camera" />
</LinearLayout>
<LinearLayout
android:orientation="vertical"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/crime_title_label"
style="?android:listSeparatorTextViewStyle" />
<EditText
android:id="@+id/crime_title"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="@string/crime_title_hint" />
</LinearLayout>
</LinearLayout>
<TextView
style="?android:listSeparatorTextViewStyle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/crime_details_label" />
<Button
android:id="@+id/crime_date"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<CheckBox
android:id="@+id/crime_solved"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/crime_solved_label" />
<Button
android:id="@+id/crime_suspect"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/crime_suspect_text" />
<Button
android:id="@+id/crime_report"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/crime_report_text" />
</LinearLayout>
fragment_crime_list.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.RecyclerView
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/crime_recycler_view"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">
<item
android:id="@+id/new_crime"
android:icon="@drawable/ic_menu_add"
android:title="@string/new_crime"
app:showAsAction="ifRoom|withText"/>
<item
android:id="@+id/show_subtitle"
android:title="@string/show_subtitle"
app:showAsAction="ifRoom"/>
</menu>
list_item_crime.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/linearLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
tools:layout_editor_absoluteY="81dp">
<TextView
android:id="@+id/crime_title"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginStart="16dp"
android:layout_marginTop="16dp"
android:text="Crime Title"
app:layout_constraintEnd_toStartOf="@+id/crime_solved"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/crime_date"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginStart="16dp"
android:layout_marginTop="8dp"
android:text="Crime Date"
app:layout_constraintEnd_toStartOf="@+id/crime_solved"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/crime_title" />
<ImageView
android:id="@+id/crime_solved"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="16dp"
android:layout_marginEnd="16dp"
android:layout_marginTop="16dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="@drawable/ic_solved" />
</android.support.constraint.ConstraintLayout>
strings.xml
<resources>
<string name="app_name">CriminalIntent</string>
<string name="crime_title_hint">Enter a title for the crime.</string>
<string name="crime_title_label">Title</string>
<string name="crime_details_label">Details</string>
<string name="crime_solved_label">Solved</string>
<string name="date_picker_title">Date of crime:</string>
<string name="new_crime">New Crime</string>
<string name="show_subtitle">Show Subtitle</string>
<string name="hide_subtitle">Hide Subtitle</string>
<string name="subtitle_format">%1$d crimes</string>
<string name="crime_suspect_text">Choose Suspect</string>
<string name="crime_report_text">Send Crime Report</string>
<string name="crime_report">%1$s!
The crime was discovered on %2$s. %3$s, %4$s</string>
<string name="crime_report_solved">The case is solved</string>
<string name="crime_report_unsolved">The case is not solved</string>
<string name="crime_report_no_suspect">there is no suspect.</string>
<string name="crime_report_suspect">the suspect is %s.</string>
<string name="crime_report_subject">CriminalIntent Crime Report</string>
<string name="send_report">Send crime report via</string>
</resources>
xml/files.xml
<?xml version="1.0" encoding="utf-8"?>
<paths>
<files-path
name="crime_photos"
path="." />
</paths>
zh/strings.xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="app_name">CriminalIntent</string>
<string name="crime_title_hint">crime简短描述</string>
<string name="crime_title_label">标题</string>
<string name="crime_details_label">明细</string>
<string name="crime_solved_label">是否解决</string>
<string name="date_picker_title">crime发生日期</string>
<string name="new_crime">新增Crime记录</string>
<string name="show_subtitle">显示子标题</string>
<string name="hide_subtitle">隐藏子标题</string>
<string name="subtitle_format">%1$d crimes</string>
<string name="crime_suspect_text">嫌疑人联系方式</string>
<string name="crime_report_text">抗议或投诉</string>
<string name="crime_report">%1$s!
crime发生于 %2$s. %3$s, %4$s</string>
<string name="crime_report_solved">问题已解决</string>
<string name="crime_report_unsolved">问题未解决</string>
<string name="crime_report_no_suspect">没找到嫌疑人</string>
<string name="crime_report_suspect">嫌疑人是 %s</string>
<string name="crime_report_subject">crime处理情况报告</string>
<string name="send_report">投诉方式</string>
</resources>
w600dp/strings.xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="crime_title_hint">
Enter a meaningful, memorable title for the crime.
</string>
</resources>
zh-w600dp/strings.xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="crime_title_hint">
请输入简短、好记的crime描述
</string>
</resources>