Bootstrap 4标签没有包装

时间：2017-03-16 20:09:10

标签： css twitter-bootstrap twitter-bootstrap-4

问题发生在alpha 6但不是alpha 5

在bootstrap中，3个标签会换行到下一行，这样就可以在较小的屏幕尺寸上使用它们。

在Bootstrap 4中，他们不会包裹并从屏幕的一侧捅掉。这是Bootstrap 4文档中的示例。

如何在bootstrap 3中进行包装？

＆＃13;
＆＃13; 
#viewport
{
  width: 200px;
  border: 1px solid #000;
}
＆＃13; 
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/css/bootstrap.min.css" integrity="sha384-rwoIResjU2yc3z8GV/NPeZWAv56rSmLldC3R/AZzGRnGxQQKnKkoFVhFQhNUwEyJ" crossorigin="anonymous">

<script src="https://code.jquery.com/jquery-3.1.1.slim.min.js" integrity="sha384-A7FZj7v+d/sdmMqp/nOQwliLvUsJfDHW+k9Omg/a/EheAdgtzNs3hpfag6Ed950n" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/tether/1.4.0/js/tether.min.js" integrity="sha384-DztdAPBWPRXSA/3eYEEUWrWCy7G5KFbe8fFjk5JAIxUYHKkDx6Qin1DkWx51bBrb" crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/js/bootstrap.min.js" integrity="sha384-vBWWzlZJ8ea9aCX4pEW3rVHjgjt7zpkNpZk+02D9phzyeVkE+jo0ieGizqPLForn" crossorigin="anonymous"></script>

<div id="viewport">
<!-- Nav tabs -->
<ul class="nav nav-tabs" role="tablist">
  <li class="nav-item">
    <a class="nav-link active" data-toggle="tab" href="#home" role="tab">Home</a>
  </li>
  <li class="nav-item">
    <a class="nav-link" data-toggle="tab" href="#profile" role="tab">Profile</a>
  </li>
  <li class="nav-item">
    <a class="nav-link" data-toggle="tab" href="#messages" role="tab">Messages</a>
  </li>
  <li class="nav-item">
    <a class="nav-link" data-toggle="tab" href="#settings" role="tab">Settings</a>
  </li>
</ul>

<!-- Tab panes -->
<div class="tab-content">
  <div class="tab-pane active" id="home" role="tabpanel">...</div>
  <div class="tab-pane" id="profile" role="tabpanel">...</div>
  <div class="tab-pane" id="messages" role="tabpanel">...</div>
  <div class="tab-pane" id="settings" role="tabpanel">...</div>
</div>

</div>
＆＃13;
＆＃13;
＆＃13;

（黑色轮廓显示小视口。在之前的版本中，标签将换行到新行，因此所有内容都在黑线内可见）

4 个答案:

答案 0 :(得分：5)

Nav选项卡，与其他组件一样，现在是flexbox。只需使用flex-wrap。

<ul class="nav nav-tabs flex-wrap" role="tablist">
        <li class="nav-item">
            <a class="nav-link active" data-toggle="tab" href="#home" role="tab">Home</a>
        </li>
        <li class="nav-item">
            <a class="nav-link" data-toggle="tab" href="#profile" role="tab">Profile</a>
        </li>
        ...
</ul>

http://www.codeply.com/go/hGPyyOv76W

我不认为这是一个问题＆＃34;而是＆＃34;设计＆＃34;。

另一种可能更具响应性的方法是使用flex-column，但仅限于xs宽度。这种方式是垂直堆叠而不是包装。

<ul class="nav nav-tabs flex-column flex-md-row" role="tablist">
         <li class="nav-item">
                    <a class="nav-link active" data-toggle="tab" href="#home" role="tab">Home</a>
         </li>
         <li class="nav-item">
                    <a class="nav-link" data-toggle="tab" href="#profile" role="tab">Profile</a>
         </li>
         ...
</ul>

Demo

答案 1 :(得分：0)

似乎是您正在使用的Bootstrap 4版本的特定问题：

#viewport
{
  width: 200px;
  border: 1px solid #000;
}
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha/css/bootstrap.min.css" crossorigin="anonymous">

<script src="https://code.jquery.com/jquery-3.1.1.slim.min.js" integrity="sha384-A7FZj7v+d/sdmMqp/nOQwliLvUsJfDHW+k9Omg/a/EheAdgtzNs3hpfag6Ed950n" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/tether/1.4.0/js/tether.min.js" integrity="sha384-DztdAPBWPRXSA/3eYEEUWrWCy7G5KFbe8fFjk5JAIxUYHKkDx6Qin1DkWx51bBrb" crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha/js/bootstrap.min.js" crossorigin="anonymous"></script>

<div id="viewport">
<!-- Nav tabs -->
<ul class="nav nav-tabs" role="tablist">
  <li class="nav-item">
    <a class="nav-link active" data-toggle="tab" href="#home">Home</a>
  </li>
  <li class="nav-item">
    <a class="nav-link" data-toggle="tab" href="#profile">Profile</a>
  </li>
  <li class="nav-item">
    <a class="nav-link" data-toggle="tab" href="#messages">Messages</a>
  </li>
  <li class="nav-item">
    <a class="nav-link" data-toggle="tab" href="#settings">Settings</a>
  </li>
</ul>

<!-- Tab panes -->
<div class="tab-content">
  <div class="tab-pane active" id="home" role="tabpanel">...</div>
  <div class="tab-pane" id="profile" role="tabpanel">...</div>
  <div class="tab-pane" id="messages" role="tabpanel">...</div>
  <div class="tab-pane" id="settings" role="tabpanel">...</div>
</div>

</div>

答案 2 :(得分：0)

对于Bootstart 4.1.3，不要忘记包含popper.js例如。

import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.support.v7.app.ActionBar;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.ImageView;
import android.widget.TextView;

import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;
import com.google.firebase.database.ServerValue;
import com.squareup.picasso.Picasso;

import java.text.SimpleDateFormat;
import java.util.HashMap;
import java.util.Map;


public class PostDetailActivity extends AppCompatActivity {

    TextView mTitleTv, mDetailTv, mCategoryTv, mCallTv, rdmTxt;

    ImageView mImageIv;

    private static final String TAG = "PostDetailActivity";

    String user;

    String location;
    DatabaseReference mRef;

    String contact;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_post_detail);

        //Action Bar
        ActionBar actionBar = getSupportActionBar();

        // ActionBar title
        actionBar.setTitle("Coupon Details");

        // Set Back Button
        actionBar.setDisplayHomeAsUpEnabled(true);
        actionBar.setDisplayShowHomeEnabled(true);

        // Initialise
        mTitleTv = findViewById(R.id.titleTv);
        mDetailTv = findViewById(R.id.descriptionTv);
        mImageIv = findViewById(R.id.imageView);
        mCategoryTv = findViewById(R.id.categoryTv);

        rdmTxt = findViewById(R.id.rdmTxt);

        mCallTv = findViewById(R.id.callTv);

        // get data from intent
        String image = getIntent().getStringExtra("image");
        String title = getIntent().getStringExtra("title");
        String desc = getIntent().getStringExtra("description");
        String cate = getIntent().getStringExtra("category");

        location = title;

        String call = getIntent().getStringExtra("contact");

        contact = call;

        // Set Data to views
        mTitleTv.setText(title);
        mDetailTv.setText(desc);
        mCategoryTv.setText(cate);

        mCallTv.setText(call);

        Picasso.get().load(image).into(mImageIv);
    }

    @Override
    public boolean onSupportNavigateUp() {
        onBackPressed();
        return true;
    }



    public void redeem(View view) {

        new AlertDialog.Builder(this)
                .setMessage("Are you sure you want to redeem the voucher?")
                .setCancelable(false)
                .setPositiveButton("Yes", new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int id) {

                        long date = System.currentTimeMillis();
                        SimpleDateFormat sdf = new SimpleDateFormat("MMM MM dd, yyyy h:mm a");
                        String dateString = sdf.format(date);


                        mRef = FirebaseDatabase.getInstance().getReference("/User/" + FirebaseAuth.getInstance().getCurrentUser().getUid());
                        String key = mRef.push().getKey(); // this will create a new unique key
                        Map<String, Object> value = new HashMap<>();
                        value.put("location", location);
                        value.put("uid", FirebaseAuth.getInstance().getCurrentUser().getUid());
                        value.put("email", FirebaseAuth.getInstance().getCurrentUser().getEmail());
                        value.put("timestamp", ServerValue.TIMESTAMP);
                        value.put("time", dateString);
                        mRef.child(key).setValue(value);

//                        DatabaseReference mMasterRef = FirebaseDatabase.getInstance().getReference("/User/" + FirebaseAuth.getInstance().getCurrentUser().getUid() + "/" + key + "/time");

//                        Log.d("mRef", mMasterRef.toString());


                    }
                })
                .setNegativeButton("No", null)
                .show();
    }

}

目前，W3school example缺少咏叹调控件。这个例子对我有用：

<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js"></script>

答案 3 :(得分：0)

如果将popper.js，id和aria-controls添加为documented，它似乎可以正常工作：

#viewport
{
  width: 200px;
  border: 1px solid #000;
}
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/css/bootstrap.min.css" integrity="sha384-rwoIResjU2yc3z8GV/NPeZWAv56rSmLldC3R/AZzGRnGxQQKnKkoFVhFQhNUwEyJ" crossorigin="anonymous">

<script src="https://code.jquery.com/jquery-3.1.1.slim.min.js" integrity="sha384-A7FZj7v+d/sdmMqp/nOQwliLvUsJfDHW+k9Omg/a/EheAdgtzNs3hpfag6Ed950n" crossorigin="anonymous"></script>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/tether/1.4.0/js/tether.min.js" integrity="sha384-DztdAPBWPRXSA/3eYEEUWrWCy7G5KFbe8fFjk5JAIxUYHKkDx6Qin1DkWx51bBrb" crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/js/bootstrap.min.js" integrity="sha384-vBWWzlZJ8ea9aCX4pEW3rVHjgjt7zpkNpZk+02D9phzyeVkE+jo0ieGizqPLForn" crossorigin="anonymous"></script>

<div id="viewport">
<!-- Nav tabs -->
<ul class="nav nav-tabs" role="tablist">
  <li class="nav-item">
    <a class="nav-link active" id="home-tab" data-toggle="tab" href="#home" role="tab" aria-controls="home" aria-selected="true">Home</a>
  </li>
  <li class="nav-item">
    <a class="nav-link" id="profiles-tab" data-toggle="tab" href="#profile" role="tab" aria-controls="profile" aria-selected="false">Profile</a>
  </li>
  <li class="nav-item">
    <a class="nav-link" id="messages-tab" data-toggle="tab" href="#messages" role="tab" aria-controls="messages" aria-selected="false">Messages</a>
  </li>
  <li class="nav-item">
    <a class="nav-link" id="settings-tab" data-toggle="tab" href="#settings" role="tab" aria-controls="settings" aria-selected="false">Settings</a>
  </li>
</ul>

<!-- Tab panes -->
<div class="tab-content">
  <div class="tab-pane active" id="home" role="tabpanel" aria-labelledby="home-tab">home</div>
  <div class="tab-pane" id="profile" role="tabpanel" aria-labelledby="profile-tab">profile</div>
  <div class="tab-pane" id="messages" role="tabpanel" aria-labelledby="messages-tab">messages</div>
  <div class="tab-pane" id="settings" role="tabpanel" aria-labelledby="settings-tab">settings</div>
</div>

</div>

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