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CrimeListFragment.java
21.04.2017
11:45
Раздел: Android - books - AndroidProgramming2e - 11 ViewPager
CrimeListFragment.java
package com.bignerdranch.android.criminalintent; 
 
import android.content.Intent; 
import android.os.Bundle; 
import android.support.v4.app.Fragment; 
import android.support.v7.widget.LinearLayoutManager; 
import android.support.v7.widget.RecyclerView; 
import android.view.LayoutInflater; 
import android.view.View; 
import android.view.ViewGroup; 
import android.widget.CheckBox; 
import android.widget.TextView; 
 
import java.util.List; 
 
public class CrimeListFragment extends Fragment { 
 
    private RecyclerView mCrimeRecyclerView; 
    private CrimeAdapter mAdapter; 
 
    @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())); 
 
        updateUI(); 
 
        return view; 
    } 
 
    @Override 
    public void onResume() { 
        super.onResume(); 
        updateUI(); 
    } 
 
    private void updateUI() { 
        CrimeLab crimeLab = CrimeLab.get(getActivity()); 
        List<Crime> crimes = crimeLab.getCrimes(); 
 
        if (mAdapter == null) { 
            mAdapter = new CrimeAdapter(crimes); 
            mCrimeRecyclerView.setAdapter(mAdapter); 
        } else { 
            mAdapter.notifyDataSetChanged(); 
        } 
    } 
 
    private class CrimeHolder extends RecyclerView.ViewHolder  
            implements View.OnClickListener { 
 
        private TextView mTitleTextView; 
        private TextView mDateTextView; 
        private CheckBox mSolvedCheckBox; 
 
        private Crime mCrime; 
 
        public CrimeHolder(View itemView) { 
            super(itemView); 
            itemView.setOnClickListener(this); 
 
            mTitleTextView = (TextView) itemView.findViewById(R.id.list_item_crime_title_text_view); 
            mDateTextView = (TextView) itemView.findViewById(R.id.list_item_crime_date_text_view); 
            mSolvedCheckBox = (CheckBox) itemView.findViewById(R.id.list_item_crime_solved_check_box); 
        } 
 
        public void bindCrime(Crime crime) { 
            mCrime = crime; 
            mTitleTextView.setText(mCrime.getTitle()); 
            mDateTextView.setText(mCrime.getDate().toString()); 
            mSolvedCheckBox.setChecked(mCrime.isSolved()); 
        } 
 
        @Override 
        public void onClick(View v) { 
            Intent intent = CrimePagerActivity.newIntent(getActivity(), mCrime.getId()); 
            startActivity(intent); 
        } 
    } 
 
    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()); 
            View view = layoutInflater.inflate(R.layout.list_item_crime, parent, false); 
            return new CrimeHolder(view); 
        } 
 
        @Override 
        public void onBindViewHolder(CrimeHolder holder, int position) { 
            Crime crime = mCrimes.get(position); 
            holder.bindCrime(crime); 
        } 
 
        @Override 
        public int getItemCount() { 
            return mCrimes.size(); 
        } 
    } 
} 

 
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