如何滑過按鈕上的標籤點擊

Question

如何通過按鈕點擊事件上的標籤滑動？

即即使按下了一個計算按鈕，用戶也會被移動到選項卡式活動中的另一個頁面上，從而爲他們提供結果。

public class MainActivity extends ActionBarActivity implements 
android.support.v7.app.ActionBar.TabListener { 

private ViewPager mViewPager; 

//TODO: Find alternatives to deprecated methods 
@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 

    final ActionBar actionBar = getSupportActionBar(); 
    actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS); 

    SectionsPagerAdapter mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager()); 

    mViewPager = (ViewPager) findViewById(R.id.pager); 
    mViewPager.setAdapter(mSectionsPagerAdapter); 

    mViewPager.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() { 
     @Override 
     public void onPageSelected(int position) { 
      actionBar.setSelectedNavigationItem(position); 
     } 
    }); 

    for (int i = 0; i < mSectionsPagerAdapter.getCount(); i++) { 
     actionBar.addTab(actionBar.newTab().setText(mSectionsPagerAdapter.getPageTitle(i)).setTabListener(this)); 
    } 
} 

public void onClick(View view){ 
    EditText weight_entry = (EditText) findViewById(R.id.weight_entry); 
    EditText height_entry = (EditText) findViewById(R.id.height_entry); 
    String weight = weight_entry.getText().toString(); 
    String height = height_entry.getText().toString(); 
    TextView calc_label = (TextView) findViewById(R.id.calc_label); 

    if (weight.matches("")|| height.matches("")){ 
     return; 
    } else { 
     float t; 
     float w = Float.parseFloat(weight); 
     float h = Float.parseFloat(height); 

     //TODO: check this 
     t = (float)((double)Math.round(10D * (double)(w/(h * h)))/10D); 

     calc_label.setText("Your BMI is: " + Float.toString(t)); 
    } 


    InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE); 
    imm.hideSoftInputFromWindow(weight_entry.getWindowToken(), 0); 
    imm.hideSoftInputFromWindow(height_entry.getWindowToken(), 0); 
} 

public class SectionsPagerAdapter extends FragmentPagerAdapter { 

    public SectionsPagerAdapter(FragmentManager fm) { 
     super(fm); 
    } 

    @Override 
    public Fragment getItem(int position) { 
     switch (position){ 
      case 0: 
       return new InputFragment(); 
      case 1: 
       return new ResultFragment(); 
      case 2: 
       return new HistoryFragment(); 
     } 
     return null; 
    } 

    @Override 
    public int getCount() { 
     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; 
    } 
} 

Answer 1

你能發表一些你的代碼嗎？

無論如何，嘗試做：

mTabHost.setCurrentTab(idx);

UPDATE：

好吧，顯然你有ViewPager，而不是一個標籤;）

試試這個在您的onClickmViewPager.setCurrentItem(idx);

已被idx，the index of the您想要顯示的頁面。我想你的情況將是1.