Android: 如何通过单击按钮禁用 tablayout 控件之间的滑动
Android: how to disable swiping between tablayout control by button click
我的选项卡布局中有 2 个片段,我设法通过单击按钮禁用选项卡布局之间的滑动功能。如何在我的 onclick 按钮中实现禁用功能。感谢提前
MainActivity
public class MainActivity extends AppCompatActivity implements TabLayout.OnTabSelectedListener{
private TabLayout tabLayout;
private ViewPager viewPager;
int ans =2;
------FCViewPager disable;------
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
tabLayout = (TabLayout) findViewById(R.id.tabLayout);
BasePagerAdapter adapter = new BasePagerAdapter(getSupportFragmentManager());
Tab1 tab1 = new Tab1();
Tab2 tab2 = new Tab2();
adapter.addFragment(tab1, "1");
adapter.addFragment(tab2, "2");
viewPager = (ViewPager) findViewById(R.id.pager);
viewPager.setAdapter(adapter);
tabLayout.setOnTabSelectedListener(this);
tabLayout.setupWithViewPager(viewPager);
tabLayout.setTabGravity(TabLayout.GRAVITY_FILL);
tabLayout.setupWithViewPager(viewPager);
}
----- public无效测试(查看查看){
disable.setEnableSwipe(false);
}---------
@Override
public void onTabSelected(TabLayout.Tab tab) {
viewPager.setCurrentItem(tab.getPosition());
}
@Override
public void onTabUnselected(TabLayout.Tab tab) {
}
@Override
public void onTabReselected(TabLayout.Tab tab) {
}
public class BasePagerAdapter extends FragmentPagerAdapter {
private final List<Fragment> mFragmentList = new ArrayList<>();
private final List<String> mFragmentTitleList = new ArrayList<>();
public BasePagerAdapter(FragmentManager manager) {
super(manager);
}
@Override
public Fragment getItem(int position) {
return mFragmentList.get(position);
}
@Override
public int getCount() {
return mFragmentList.size();
}
@Override
public CharSequence getPageTitle(int position) {
return mFragmentTitleList.get(position);
}
public void removeFragment(int position) {
mFragmentTitleList.remove(position);
mFragmentList.remove(position);
notifyDataSetChanged();
}
public void addFragment(Fragment fragment, String title) {
mFragmentList.add(fragment);
mFragmentTitleList.add(title);
}
@Override
public int getItemPosition(Object object) {
return POSITION_NONE;
}
}
选项卡 1
public class Tab1 extends Fragment {
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View h = inflater.inflate(R.layout.tab1, container, false);
return h;
}
}
选项卡 2
public class Tab2 extends Fragment {
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View h = inflater.inflate(R.layout.tab2, container, false);
return h;
}
您可以在 ViewPager 中禁用滑动功能。如下创建自定义 ViewPager。
public class FCViewPager extends ViewPager {
private boolean enableSwipe;
public FCViewPager(Context context) {
super(context);
init();
}
public FCViewPager(Context context, AttributeSet attrs) {
super(context, attrs);
init();
}
private void init() {
enableSwipe = true;
}
@Override
public boolean onInterceptTouchEvent(MotionEvent event) {
// Never allow swiping to switch between pages
return enableSwipe && super.onInterceptTouchEvent(event);
}
@Override
public boolean onTouchEvent(MotionEvent event) {
// Never allow swiping to switch between pages
return enableSwipe && super.onTouchEvent(event);
}
public void setEnableSwipe(boolean enableSwipe) {
this.enableSwipe = enableSwipe;
}
}
在您的 MainActivity 中
//R.id.pager has to be FCViewPager not default ViewPager
viewPager = (FCViewPager) findViewById(R.id.pager);
你的按钮 onClick 函数
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
pager.setEnableSwipe(false);
}
});
默认情况下以编程方式禁用和启用滚动的用户滚动禁用 viewpager
public class ScrollDisabledViewpager extends ViewPager {
private boolean isPagingEnabled = false;
public ScrollDisabledViewpager(Context context) {
super(context);
}
public ScrollDisabledViewpager(Context context, AttributeSet attrs) {
super(context, attrs);
}
@Override
public boolean onTouchEvent(MotionEvent event) {
return this.isPagingEnabled && super.onTouchEvent(event);
}
@Override
public boolean onInterceptTouchEvent(MotionEvent event) {
return this.isPagingEnabled && super.onInterceptTouchEvent(event);
}
public void setPagingEnabled(boolean b) {
this.isPagingEnabled = b;
}
}
按钮 onClick
事件你可以设置这个 true/false 来启用/禁用滚动
viewPager.setPagingEnabled(true/ false);
我的选项卡布局中有 2 个片段,我设法通过单击按钮禁用选项卡布局之间的滑动功能。如何在我的 onclick 按钮中实现禁用功能。感谢提前
MainActivity
public class MainActivity extends AppCompatActivity implements TabLayout.OnTabSelectedListener{
private TabLayout tabLayout;
private ViewPager viewPager;
int ans =2;
------FCViewPager disable;------
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
tabLayout = (TabLayout) findViewById(R.id.tabLayout);
BasePagerAdapter adapter = new BasePagerAdapter(getSupportFragmentManager());
Tab1 tab1 = new Tab1();
Tab2 tab2 = new Tab2();
adapter.addFragment(tab1, "1");
adapter.addFragment(tab2, "2");
viewPager = (ViewPager) findViewById(R.id.pager);
viewPager.setAdapter(adapter);
tabLayout.setOnTabSelectedListener(this);
tabLayout.setupWithViewPager(viewPager);
tabLayout.setTabGravity(TabLayout.GRAVITY_FILL);
tabLayout.setupWithViewPager(viewPager);
}
----- public无效测试(查看查看){
disable.setEnableSwipe(false);
}---------
@Override
public void onTabSelected(TabLayout.Tab tab) {
viewPager.setCurrentItem(tab.getPosition());
}
@Override
public void onTabUnselected(TabLayout.Tab tab) {
}
@Override
public void onTabReselected(TabLayout.Tab tab) {
}
public class BasePagerAdapter extends FragmentPagerAdapter {
private final List<Fragment> mFragmentList = new ArrayList<>();
private final List<String> mFragmentTitleList = new ArrayList<>();
public BasePagerAdapter(FragmentManager manager) {
super(manager);
}
@Override
public Fragment getItem(int position) {
return mFragmentList.get(position);
}
@Override
public int getCount() {
return mFragmentList.size();
}
@Override
public CharSequence getPageTitle(int position) {
return mFragmentTitleList.get(position);
}
public void removeFragment(int position) {
mFragmentTitleList.remove(position);
mFragmentList.remove(position);
notifyDataSetChanged();
}
public void addFragment(Fragment fragment, String title) {
mFragmentList.add(fragment);
mFragmentTitleList.add(title);
}
@Override
public int getItemPosition(Object object) {
return POSITION_NONE;
}
}
选项卡 1
public class Tab1 extends Fragment {
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View h = inflater.inflate(R.layout.tab1, container, false);
return h;
}
}
选项卡 2
public class Tab2 extends Fragment {
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View h = inflater.inflate(R.layout.tab2, container, false);
return h;
}
您可以在 ViewPager 中禁用滑动功能。如下创建自定义 ViewPager。
public class FCViewPager extends ViewPager {
private boolean enableSwipe;
public FCViewPager(Context context) {
super(context);
init();
}
public FCViewPager(Context context, AttributeSet attrs) {
super(context, attrs);
init();
}
private void init() {
enableSwipe = true;
}
@Override
public boolean onInterceptTouchEvent(MotionEvent event) {
// Never allow swiping to switch between pages
return enableSwipe && super.onInterceptTouchEvent(event);
}
@Override
public boolean onTouchEvent(MotionEvent event) {
// Never allow swiping to switch between pages
return enableSwipe && super.onTouchEvent(event);
}
public void setEnableSwipe(boolean enableSwipe) {
this.enableSwipe = enableSwipe;
}
}
在您的 MainActivity 中
//R.id.pager has to be FCViewPager not default ViewPager
viewPager = (FCViewPager) findViewById(R.id.pager);
你的按钮 onClick 函数
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
pager.setEnableSwipe(false);
}
});
默认情况下以编程方式禁用和启用滚动的用户滚动禁用 viewpager
public class ScrollDisabledViewpager extends ViewPager {
private boolean isPagingEnabled = false;
public ScrollDisabledViewpager(Context context) {
super(context);
}
public ScrollDisabledViewpager(Context context, AttributeSet attrs) {
super(context, attrs);
}
@Override
public boolean onTouchEvent(MotionEvent event) {
return this.isPagingEnabled && super.onTouchEvent(event);
}
@Override
public boolean onInterceptTouchEvent(MotionEvent event) {
return this.isPagingEnabled && super.onInterceptTouchEvent(event);
}
public void setPagingEnabled(boolean b) {
this.isPagingEnabled = b;
}
}
按钮 onClick
事件你可以设置这个 true/false 来启用/禁用滚动
viewPager.setPagingEnabled(true/ false);