在Tablayout實踐中,我遵循link的這段代碼。但問題是,雖然我目前的標籤上顯示的下一個標籤麪包和Log-cat.Here是我的代碼在當前選項卡位置的Android Tablayout顯示下一個選項卡Toast and Logs
ScrollableTabsActivity.java
package info.androidhive.materialtabs.activity;
import android.os.Bundle;
import android.support.design.widget.TabLayout;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import java.util.ArrayList;
import java.util.List;
import info.androidhive.materialtabs.R;
import info.androidhive.materialtabs.fragments.EightFragment;
import info.androidhive.materialtabs.fragments.FiveFragment;
import info.androidhive.materialtabs.fragments.FourFragment;
import info.androidhive.materialtabs.fragments.NineFragment;
import info.androidhive.materialtabs.fragments.OneFragment;
import info.androidhive.materialtabs.fragments.SevenFragment;
import info.androidhive.materialtabs.fragments.SixFragment;
import info.androidhive.materialtabs.fragments.TenFragment;
import info.androidhive.materialtabs.fragments.ThreeFragment;
import info.androidhive.materialtabs.fragments.TwoFragment;
public class ScrollableTabsActivity extends AppCompatActivity {
private Toolbar toolbar;
private TabLayout tabLayout;
private ViewPager viewPager;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_scrollable_tabs);
toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
viewPager = (ViewPager) findViewById(R.id.viewpager);
setupViewPager(viewPager);
tabLayout = (TabLayout) findViewById(R.id.tabs);
tabLayout.setupWithViewPager(viewPager);
}
private void setupViewPager(ViewPager viewPager) {
ViewPagerAdapter adapter = new
ViewPagerAdapter(getSupportFragmentManager());
adapter.addFrag(new OneFragment(), "ONE");
adapter.addFrag(new TwoFragment(), "TWO");
adapter.addFrag(new ThreeFragment(), "THREE");
adapter.addFrag(new FourFragment(), "FOUR");
adapter.addFrag(new FiveFragment(), "FIVE");
adapter.addFrag(new SixFragment(), "SIX");
adapter.addFrag(new SevenFragment(), "SEVEN");
adapter.addFrag(new EightFragment(), "EIGHT");
adapter.addFrag(new NineFragment(), "NINE");
adapter.addFrag(new TenFragment(), "TEN");
viewPager.setAdapter(adapter);
}
private class ViewPagerAdapter extends FragmentPagerAdapter {
private final List<Fragment> mFragmentList = new ArrayList<>();
private final List<String> mFragmentTitleList = new ArrayList<>();
public ViewPagerAdapter(FragmentManager manager) {
super(manager);
}
@Override
public Fragment getItem(int position) {
return mFragmentList.get(position);
}
@Override
public int getCount() {
return mFragmentList.size();
}
public void addFrag(Fragment fragment, String title) {
mFragmentList.add(fragment);
mFragmentTitleList.add(title);
}
@Override
public CharSequence getPageTitle(int position) {
return mFragmentTitleList.get(position);
}
}
}
activity_scrollable_tabs.xml
<android.support.design.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:layout_scrollFlags="scroll|enterAlways"
app:popupTheme="@style/ThemeOverlay.AppCompat.Light" />
<android.support.design.widget.TabLayout
android:id="@+id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:tabMode="scrollable"/>
</android.support.design.widget.AppBarLayout>
<android.support.v4.view.ViewPager
android:id="@+id/viewpager"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior" />
</android.support.design.widget.CoordinatorLayout>
OneFragment.java
package info.androidhive.materialtabs.fragments;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import info.androidhive.materialtabs.R;
public class OneFragment extends Fragment{
public OneFragment() {
// Required empty public constructor
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.fragment_one, container, false);
}
}
fragment_one.xml
<RelativeLayout 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"
tools:context="info.androidhive.materialtabs.fragments.OneFragment">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/one"
android:textSize="40dp"
android:textStyle="bold"
android:layout_centerInParent="true"/>
</RelativeLayout>
第二和第三片段代碼與提及的第一代碼相同。我只是在第三個選項卡的代碼添加以下代碼onCreateView
方法
Toast.makeText(getContext(), "3 fragment", Toast.LENGTH_SHORT).show();
Log.d(TAG, "onCreateView: 3 fragment ");
我得到下面的輸出
,你可以展示片段3吐司來在第二個片段我也注意到第三個片段對數貓也來第二個片段。我不知道發生了什麼錯,但我注意到我在當前Tab位置即將到來的Tab Toast和登錄貓 顯示,並且它會在tablayout選項卡上的任何位置發生。我也嘗試其他教程和其他方法來創建可滾動的Tablayout,但在所有實踐中,我都會遇到同樣類型的問題。請幫我解決問題,我只是想我的即將到來的片段不能開始進行,直到我訪問。最後抱歉牀格式我是新手。
第二和第三片段的代碼是一樣的提製表1碼。我只是在第三個標籤代碼添加以下代碼onCreateView方法 吐司。makeText(getContext(),「3 fragment」,Toast.LENGTH_SHORT).show(); Log.d(TAG,「onCreateView:3 fragment」); – Basit
試試這個https://stackoverflow.com/a/19027096/6834114 – Omi