CriminalIntent项目开发笔记(二)

1.升级Crime类

package com.criminalintent;

import java.util.UUID;
import java.util.Date;

public class Crime {
    private UUID uuid;
    private String title;
    //新增date  solved  两个字段
    private Date date;
    private boolean solved;

    public Crime(){
        uuid=UUID.randomUUID();
        date=new Date();  //新增date
    }

    public UUID getUuid() {
        return uuid;
    }

    public String getTitle() {

        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }
    //以下是新增加的
    public Date getDate() {
        return date;
    }

    public void setDate(Date date) {
        this.date = date;
    }

    public boolean isSolved() {
        return solved;
    }

    public void setSolved(boolean solved) {
        this.solved = solved;
    }
}

2.更新fragment_crime.xml 视图

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="match_parent">
    <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:layout_marginLeft="16dp"
        android:layout_marginRight="16dp"
        android:hint="@string/crime_title_hint"/>
    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="@string/crime_details_label"
        style="?android:listSeparatorTextViewStyle"/>
    <Button
        android:id="@+id/crime_date"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginLeft="16dp"
        android:layout_marginRight="16dp"/>
    <CheckBox
        android:id="@+id/crime_solved"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginLeft="16dp"
        android:layout_marginRight="16dp"
        android:text="@string/crime_solved_label"/>

</LinearLayout>

3.更新CrimeFragment.java类文件

package com.criminalintent;

import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
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.TextView;

public class CrimeFragment extends Fragment {
    private Crime crime;
    private TextView titleFiled;
    //新增 dateButton  solvedCheckBox字段
    private Button dateButton;
    private CheckBox solvedCheckBox;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        crime=new Crime();
    }

    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View view=inflater.inflate(R.layout.fragment_crime,container,false);
        titleFiled= (TextView) view.findViewById(R.id.crime_title);
        titleFiled.addTextChangedListener(new TextWatcher() {
            @Override
            public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {

            }

            @Override
            public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {
                crime.setTitle(charSequence.toString());

            }

            @Override
            public void afterTextChanged(Editable editable) {

            }
        });
        //新增控制button   checkbox 的代码
        dateButton= (Button) view.findViewById(R.id.crime_date);
        dateButton.setText(crime.getDate().toString());
        dateButton.setEnabled(false);

        solvedCheckBox= (CheckBox) view.findViewById(R.id.crime_solved);
        solvedCheckBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(CompoundButton compoundButton, boolean isSolved) {
                crime.setSolved(isSolved);
            }
        });
        return view;
    }
}

最后运行效果图如下：