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Fragment，androidfragment
首先FragmentActivity类及布局；
public abstract class SingleFragmentActivity extends FragmentActivity {
protected abstract Fragment createFragment();
@Override
public void onCreate(Bundle savedInstanceState ) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_fragment);
FragmentManager fragmentManager = getSupportFragmentManager();
Fragment fragment = fragmentManager.findFragmentById(R.id.fragmentContainer);
if (fragment == null){
fragment = createFragment();
fragmentManager.beginTransaction().add(R.id.fragmentContainer, fragment)
.commit();
}
}
}
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/fragmentContainer"
tools:context="com.zps.criminalintent.CrimeActivity">
</FrameLayout>
其次fragment类及布局；
public class CrimeFragment extends Fragment{
public static final String EXTRA_CRIME_ID = "criminalintent.CRIME_ID";
private Crime mCrime;
private EditText mTitleField;
private Button mDateButton;
private CheckBox mSolvedCheckBox;
public static CrimeFragment newInstance(UUID crimeId) {
Bundle args = new Bundle();
args.putSerializable(EXTRA_CRIME_ID,crimeId);
CrimeFragment fragment = new CrimeFragment();
fragment.setArguments(args);
return fragment;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//mCrime = new Crime();
UUID crimeId = (UUID)getArguments().getSerializable(EXTRA_CRIME_ID);
mCrime = CrimeLab.get(getActivity()).getCrime(crimeId);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.fragment_crime, container, false);
mDateButton = (Button) v.findViewById(R.id.crime_date);
mDateButton.setText(mCrime.getDate().toString());
mDateButton.setEnabled(false);
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);
}
});
return v;
}
}
<?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:orientation="vertical">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/crime_title_label"
style="?android:listSeparatorTextViewStyle"/>
</LinearLayout>
最后activity类继承父类，实例化CrimeFragment；
public class CrimeActivity extends SingleFragmentActivity {
@Override
protected Fragment createFragment() {
UUID crimeId = (UUID) getIntent()
.getSerializableExtra(CrimeFragment.EXTRA_CRIME_ID);
return CrimeFragment.newInstance(crimeId);
}
}