Android初学第23天 _Android

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android初学第23天【Android初学第23天】10_FragmentArguments
代码 CrimeLab.java

package com.bignerdranch.android.criminalintent; import android.content.Context; import java.util.ArrayList; import java.util.List; import java.util.UUID; public class CrimeLab { private static CrimeLab sCrimeLab; private List< Crime> mCrimes; public static CrimeLab get(Context context) { if (sCrimeLab == null) { sCrimeLab = new CrimeLab(context); }return sCrimeLab; }private CrimeLab(Context context) { mCrimes = new ArrayList< > (); for (int i = 0; i < 100; i++) { Crime crime = new Crime(); crime.setTitle("Crime #" + i); crime.setSolved(i % 2 == 0); mCrimes.add(crime); } }public List< Crime> getCrimes() { return mCrimes; }public Crime getCrime(UUID id) { for (Crime crime : mCrimes) { if (crime.getId().equals(id)) { return crime; } }return null; } }

CrimeListActivity.java

package com.bignerdranch.android.criminalintent; import android.support.v4.app.Fragment; public class CrimeListActivity extends SingleFragmentActivity {@Override protected Fragment createFragment() { return new CrimeListFragment(); } }