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저는 현재 Android Studio를 사용하는 프로젝트에 참여하고 있습니다.Android Studio 액션 바 탭 - 의도를 startActivity에 보내는 방법?
상황 : 현재 레이아웃 응용 프로그램을 만들기 :
짧은 긴 이야기 만들기 위해은 ListView에 3 개 목록 항목을 포함 MainActivity를 (A, B, C). 각 항목은 스위치/케이스에 연결되어 Intent를 사용하여 클릭 한 다음 ListView로 이동합니다.문제 : 나는 (내가 사용하기 위해 노력하고있어 현재의 방법은 더 이상 사용되지 않기 때문에) 탭 레이아웃을 생성 할 결정했습니다 그래서 레이아웃이 탭에서 갔다 -> ListView에을 대신 의 ListView의 -> ListView. ListView에서 Tabs로 변환하는 동안 실행 한 문제는 탭 아래에 스위치/대/소문자를 배치 할 위치 또는 다른 클래스를 표시 할 의도를 설정하는 방법을 잘 모르겠다는 것입니다. 어떤 도움이라도 대단히 감사하겠습니다! 여기
내 MainActivity입니다 :public class MainActivity extends Activity {
ListView listView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// setContentView(R.layout.activity_main);
ActionBar bar = getActionBar();
bar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
for (int i = 0; i < 3; i++) {
ActionBar.Tab tab = bar.newTab();
tab.setText("Tab " + i);
tab.setTabListener(this);
bar.addTab(tab);
}
// Get ListView object from XML
listView = (ListView)findViewById(R.id.MainMenuList);
// Defined Array values to show in ListView
String[] values = new String[]{
"A",
"B",
"C"
};
// Define a new List Adapter
// First parameter - Context
// Second parameter - Layout for the row
// Third parameter - ID of the TextView to which the data is written
// Fourth - the Array of data
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
R.layout.centered_list_text_view, android.R.id.text1, values);
// Assign the adapter to ListView
listView.setAdapter(adapter);
// ListView item click Listener
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
// ListView clicked item index
int itemPosition = position;
// ListView clicked item value
String itemValue = (String) listView.getItemAtPosition(position);
switch (itemPosition) {
case 0: // A
Intent intentA = new Intent(getApplicationContext(), A.class);
startActivity(intentA);
break;
case 1: // B
Intent intentB = new Intent(getApplicationContext(), B.class);
startActivity(intentB);
break;
case 2: // C
Intent intentC = new Intent(getApplicationContext(), C.class);
startActivity(intentC);
break;
}
}
});
}
그리고 여기에 내가 원하는 레이아웃 안드로이드 스튜디오에서 자동 생성 된 코드입니다 : 그것으로 살펴본 후
public class MainActivity extends ActionBarActivity implements ActionBar.TabListener {
/**
* The {@link android.support.v4.view.PagerAdapter} that will provide
* fragments for each of the sections. We use a
* {@link FragmentPagerAdapter} derivative, which will keep every
* loaded fragment in memory. If this becomes too memory intensive, it
* may be best to switch to a
* {@link android.support.v4.app.FragmentStatePagerAdapter}.
*/
SectionsPagerAdapter mSectionsPagerAdapter;
/**
* The {@link ViewPager} that will host the section contents.
*/
ViewPager mViewPager;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Set up the action bar.
final ActionBar actionBar = getSupportActionBar();
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
// Create the adapter that will return a fragment for each of the three
// primary sections of the activity.
mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager());
// Set up the ViewPager with the sections adapter.
mViewPager = (ViewPager) findViewById(R.id.pager);
mViewPager.setAdapter(mSectionsPagerAdapter);
// When swiping between different sections, select the corresponding
// tab. We can also use ActionBar.Tab#select() to do this if we have
// a reference to the Tab.
mViewPager.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
@Override
public void onPageSelected(int position) {
actionBar.setSelectedNavigationItem(position);
}
});
// For each of the sections in the app, add a tab to the action bar.
for (int i = 0; i < mSectionsPagerAdapter.getCount(); i++) {
// Create a tab with text corresponding to the page title defined by
// the adapter. Also specify this Activity object, which implements
// the TabListener interface, as the callback (listener) for when
// this tab is selected.
actionBar.addTab(
actionBar.newTab()
.setText(mSectionsPagerAdapter.getPageTitle(i))
.setTabListener(this));
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
@Override
public void onTabSelected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) {
// When the given tab is selected, switch to the corresponding page in
// the ViewPager.
mViewPager.setCurrentItem(tab.getPosition());
}
@Override
public void onTabUnselected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) {
}
@Override
public void onTabReselected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) {
}
/**
* A {@link FragmentPagerAdapter} that returns a fragment corresponding to
* one of the sections/tabs/pages.
*/
public class SectionsPagerAdapter extends FragmentPagerAdapter {
public SectionsPagerAdapter(FragmentManager fm) {
super(fm);
}
@Override
public Fragment getItem(int position) {
// getItem is called to instantiate the fragment for the given page.
// Return a PlaceholderFragment (defined as a static inner class below).
return PlaceholderFragment.newInstance(position + 1);
}
@Override
public int getCount() {
// Show 3 total pages.
return 3;
}
@Override
public CharSequence getPageTitle(int position) {
Locale l = Locale.getDefault();
switch (position) {
case 0:
return getString(R.string.title_section1).toUpperCase(l);
case 1:
return getString(R.string.title_section2).toUpperCase(l);
case 2:
return getString(R.string.title_section3).toUpperCase(l);
}
return null;
}
}
/**
* A placeholder fragment containing a simple view.
*/
public static class PlaceholderFragment extends Fragment {
/**
* The fragment argument representing the section number for this
* fragment.
*/
private static final String ARG_SECTION_NUMBER = "section_number";
/**
* Returns a new instance of this fragment for the given section
* number.
*/
public static PlaceholderFragment newInstance(int sectionNumber) {
PlaceholderFragment fragment = new PlaceholderFragment();
Bundle args = new Bundle();
args.putInt(ARG_SECTION_NUMBER, sectionNumber);
fragment.setArguments(args);
// would the switch/case go here? if so, what switch to use?
return fragment;
}
public PlaceholderFragment() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main, container, false);
return rootView;
}
}
}