我有这个主要活动
public class MainActivity extends FragmentActivity {
SectionsPagerAdapter mSectionsPagerAdapter;
ViewPager mViewPager;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Create the adapter that will return a fragment for each of the three
// primary sections of the app
mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager());
// Set up the ViewPager with the sections adapter.
mViewPager = (ViewPager) findViewById(R.id.pager);
mViewPager.setAdapter(mSectionsPagerAdapter);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.activity_main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle item selection
switch (item.getItemId()) {
case R.id.menu_settings4:
mainactivity();
return true;
case R.id.menu_settings1:
ipallilos();
return true;
case R.id.menu_settings2:
rithmisi();
return true;
case R.id.menu_settings3:
sxetika();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
private void mainactivity() {
Toast.makeText(MainActivity.this, "Επιστροφή στην Αρχική Σελίδα",
Toast.LENGTH_SHORT).show();
}
private void rithmisi() {
setContentView(R.layout.rithmisis);
Toast.makeText(MainActivity.this, "Loading Settings",
Toast.LENGTH_SHORT).show();
}
private void ipallilos() {
setContentView(R.layout.ipallilos);
Toast.makeText(MainActivity.this, "Loading Staff",
Toast.LENGTH_SHORT).show();
}
private void sxetika() {
//anoigma menou efarmogis
setContentView(R.layout.sxetikame);
Toast.makeText(MainActivity.this, "Loading about Software",
Toast.LENGTH_SHORT).show();
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if ((keyCode == KeyEvent.KEYCODE_BACK)) {
//moveTaskToBack(true);
super.onBackPressed();
return true;
}
return super.onKeyDown(keyCode, event);
}
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 DummySectionFragment (defined as a static inner class
// below) with the page number as its lone argument.
Fragment fragment = new DummySectionFragment();
Bundle args = new Bundle();
args.putInt(DummySectionFragment.ARG_SECTION_NUMBER, position + 1);
fragment.setArguments(args);
return fragment;
}
@Override
public int getCount() {
// Show 3 total pages.
return 2;
}
@Override
public CharSequence getPageTitle(int position) {
switch (position) {
case 0:
return getString(R.string.title_section1).toUpperCase();
// case 1:
// return getString(R.string.title_section2).toUpperCase();
case 1:
return getString(R.string.title_section3).toUpperCase();
}
return null;
}
}
public static class DummySectionFragment extends Fragment {
public DummySectionFragment() {
}
public static final String ARG_SECTION_NUMBER = "section_number";
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
Bundle args = getArguments();
switch (args.getInt(ARG_SECTION_NUMBER)){
case 1:
return inflater.inflate(R.layout.paraggeleialayout, container, false);
case 2:
return inflater.inflate(R.layout.trapezia, container, false);
}
return getView();
}
}
}
我在 .paraggeleiallayout 有一些按钮。我尝试将 setOnClickListener 添加到我的按钮以打开其他类，但它不起作用。这是我的 paraggeleia 课。
public class paraggeleia extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.paraggeleialayout);
TextView text = (TextView) findViewById(R.id.TextView1);
Button bTutorial = (Button) findViewById(R.id.button51);
text.setText(R.string.paraggeleia);
bTutorial.setOnClickListener(new View.OnClickListener() {
public void onClick(View v){
finish();
}
});
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if ((keyCode == KeyEvent.KEYCODE_BACK)) {
super.onBackPressed();
return true;
}
return super.onKeyDown(keyCode, event);
}
}