Java 文本视图阻止底部导航
我正在开发的Android应用程序中有一个问题，如果文本太长，则包含Java 文本视图阻止底部导航,java,android,xml,Java,Android,Xml,我正在开发的Android应用程序中有一个问题，如果文本太长，则包含TextView的片段中的文本会覆盖底部导航。问题是这样的： TextView阻止底部导航 下面是片段的代码： package com.example.xxxxxx.loremipsum; import android.annotation.SuppressLint; import android.content.Context; import android.content.res.Resources; import an
TextViewTextViewpackage com.example.xxxxxx.loremipsum;
import android.annotation.SuppressLint;
import android.content.Context;
import android.content.res.Resources;
import android.net.Uri;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.constraint.ConstraintLayout;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
/**
* A simple {@link Fragment} subclass.
* Activities that contain this fragment must implement the
* {@link LessonFragment.OnFragmentInteractionListener} interface
* to handle interaction events.
* Use the {@link LessonFragment#newInstance} factory method to
* create an instance of this fragment.
*/
public class LessonFragment extends Fragment
{
private String lessonContent;
private OnFragmentInteractionListener mListener;
TextView lesson;
private int lessonID;
private boolean culture;
public LessonFragment()
{
}
@SuppressLint("ValidFragment")
public LessonFragment(int lessonID)
{
this.lessonID = lessonID;
culture = false;
}
@SuppressLint("ValidFragment")
public LessonFragment(int lessonID, int i)
{
this.lessonID = lessonID;
culture = true;
}
/**
* Use this factory method to create a new instance of
* this fragment using the provided parameters.
*
* @param param1 Parameter 1.
* @param param2 Parameter 2.
* @return A new instance of fragment LessonFragment.
*/
public static LessonFragment newInstance(String param1, String param2)
{
return null;
}
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
if (getArguments() != null)
{
}
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState)
{
View view = inflater.inflate(R.layout.fragment_lesson, container, false);
ConstraintLayout.LayoutParams layoutParams = new ConstraintLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);
view.setLayoutParams(layoutParams);
Button button = (Button) view.findViewById(R.id.backButton);
button.setOnClickListener(new View.OnClickListener()
{
@Override
public void onClick(View view)
{
if(!culture)
{
FragmentManager fragmentManager = getActivity().getSupportFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
GrammarFragment GF = new GrammarFragment();
fragmentTransaction.replace(R.id.container, GF);
fragmentTransaction.commit();
}
else
{
FragmentManager fragmentManager = getActivity().getSupportFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
CultureFragment CF = new CultureFragment();
fragmentTransaction.replace(R.id.container, CF);
fragmentTransaction.commit();
}
}
});
lesson = (TextView) view.findViewById(R.id.grammarContent);
String[] lessons;
if(!culture)
lessons = getActivity().getResources().getStringArray(R.array.lessons);
else
lessons = getActivity().getResources().getStringArray(R.array.cultureLessons);
lessonContent = lessons[lessonID];
lesson.setText(lessonContent);
return view;
}
@Override
public void onAttach(Context context)
{
super.onAttach(context);
if (context instanceof OnFragmentInteractionListener)
{
mListener = (OnFragmentInteractionListener) context;
}
else
{
throw new RuntimeException(context.toString()
+ " must implement OnFragmentInteractionListener");
}
}
@Override
public void onDetach()
{
super.onDetach();
mListener = null;
}
/**
* This interface must be implemented by activities that contain this
* fragment to allow an interaction in this fragment to be communicated
* to the activity and potentially other fragments contained in that
* activity.
* <p>
* See the Android Training lesson <a href=
* "http://developer.android.com/training/basics/fragments/communicating.html"
* >Communicating with Other Fragments</a> for more information.
*/
public interface OnFragmentInteractionListener
{
void onBackClickCulture();
}
}
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content"
tools:context="com.example.xxxxxx.loremipsum.LessonFragment">
<ScrollView
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/grammarContent"
android:textSize="18sp"
/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Back"
android:id="@+id/backButton"
tools:ignore="OnClick" />
</LinearLayout>
</ScrollView>
package com.example.xxxxxx.loremipsum；
导入android.annotation.SuppressLint；
导入android.content.Context；
导入android.content.res.Resources；
导入android.net.Uri；
导入android.os.Bundle；
导入android.support.annotation.Nullable；
导入android.support.constraint.ConstraintLayout；
导入android.support.v4.app.Fragment；
导入android.support.v4.app.FragmentManager；
导入android.support.v4.app.FragmentTransaction；
导入android.util.Log；
导入android.view.LayoutInflater；
导入android.view.view；
导入android.view.ViewGroup；
导入android.widget.Button；
导入android.widget.TextView；
导入android.widget.Toast；
/**
*一个简单的{@link Fragment}子类。
*包含此片段的活动必须实现
*{@link LessonFragment.OnFragmentInteractionListener}接口
*处理交互事件。
*使用{@link LessonFragment#newInstance}工厂方法
*创建此片段的实例。
*/
公共类LessonFragment扩展了片段
{
私密的弦乐内容；
私有OnFragmentInteractionListener mListener；
文本视图课程；
莱索尼德私人酒店；
私有布尔文化；
公共课
{
}
@SuppressLint（“有效碎片”）
公共莱索尼德（内莱索尼德）
{
this.lessonID=lessonID；
文化=假；
}
@SuppressLint（“有效碎片”）
公共LessonFragment（内莱索尼德，内莱索尼德）
{
this.lessonID=lessonID；
文化=真实；
}
/**
*使用此工厂方法创建的新实例
*使用提供的参数创建此片段。
*
*@param param1参数1。
*@param param2参数2。
*@return一个fragment LessonFragment的新实例。
*/
公共静态LessonFragment newInstance（字符串param1，字符串param2）
{
返回null；
}
@凌驾
创建时的公共void（Bundle savedInstanceState）
{
super.onCreate（savedInstanceState）；
如果（getArguments（）！=null）
{
}
}
@凌驾
创建视图上的公共视图（布局、充气机、视图组容器、，
Bundle savedInstanceState）
{
视图=充气机。充气（R.layout.fragment\u课程，容器，错误）；
ConstraintLayout.LayoutParams LayoutParams=新的ConstraintLayout.LayoutParams（ViewGroup.LayoutParams.MATCH_父级，ViewGroup.LayoutParams.WRAP_内容）；
view.setLayoutParams（layoutParams）；
Button Button=（Button）view.findViewById（R.id.backButton）；
setOnClickListener（新视图.OnClickListener（）
{
@凌驾
公共void onClick（视图）
{
如果（！文化）
{
FragmentManager FragmentManager=getActivity（）.getSupportFragmentManager（）；
FragmentTransaction FragmentTransaction=fragmentManager.beginTransaction（）；
GrammarFragment GF=新的GrammarFragment（）；
碎片事务。替换（R.id.container，GF）；
fragmentTransaction.commit（）；
}
其他的
{
FragmentManager FragmentManager=getActivity（）.getSupportFragmentManager（）；
FragmentTransaction FragmentTransaction=fragmentManager.beginTransaction（）；
CultureFragment CF=新的CultureFragment（）；
fragmentTransaction.replace（R.id.container，CF）；
fragmentTransaction.commit（）；
}
}
});
lesson=（TextView）view.findViewById（R.id.grammarContent）；
字符串[]课程；
如果（！文化）
课程=getActivity（）.getResources（）.getStringArray（R.array.lessons）；
其他的
课程=getActivity（）.getResources（）.getStringArray（R.array.CultureResons）；
lessonContent=课程[莱索尼德]；
lesson.setText（第二课内容）；
返回视图；
}
@凌驾
公共void-onAttach（上下文）
{
super.onAttach（上下文）；
if（OnFragmentInteractionListener的上下文实例）
{
mListener=（OnFragmentInteractionListener）上下文；
}
其他的
{
抛出新的RuntimeException（context.toString（）
+“必须实现OnFragmentInteractionListener”）；
}
}
@凌驾
公共无效连接（）
{
super.onDetach（）；
mListener=null；
}
/**
*此接口必须由包含以下内容的活动实现
*片段，以允许通信此片段中的交互
*该活动以及其中可能包含的其他片段
*活动。
*
*有关更多信息，请参阅Android培训课程。
*/
FragmentInteractionListener上的公共接口
{
在BackClickCulture（）上无效；
}
}
package com.example.xxxxxx.loremipsum;
import android.annotation.SuppressLint;
import android.content.Context;
import android.content.res.Resources;
import android.net.Uri;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.constraint.ConstraintLayout;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
/**
* A simple {@link Fragment} subclass.
* Activities that contain this fragment must implement the
* {@link LessonFragment.OnFragmentInteractionListener} interface
* to handle interaction events.
* Use the {@link LessonFragment#newInstance} factory method to
* create an instance of this fragment.
*/
public class LessonFragment extends Fragment
{
private String lessonContent;
private OnFragmentInteractionListener mListener;
TextView lesson;
private int lessonID;
private boolean culture;
public LessonFragment()
{
}
@SuppressLint("ValidFragment")
public LessonFragment(int lessonID)
{
this.lessonID = lessonID;
culture = false;
}
@SuppressLint("ValidFragment")
public LessonFragment(int lessonID, int i)
{
this.lessonID = lessonID;
culture = true;
}
/**
* Use this factory method to create a new instance of
* this fragment using the provided parameters.
*
* @param param1 Parameter 1.
* @param param2 Parameter 2.
* @return A new instance of fragment LessonFragment.
*/
public static LessonFragment newInstance(String param1, String param2)
{
return null;
}
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
if (getArguments() != null)
{
}
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState)
{
View view = inflater.inflate(R.layout.fragment_lesson, container, false);
ConstraintLayout.LayoutParams layoutParams = new ConstraintLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);
view.setLayoutParams(layoutParams);
Button button = (Button) view.findViewById(R.id.backButton);
button.setOnClickListener(new View.OnClickListener()
{
@Override
public void onClick(View view)
{
if(!culture)
{
FragmentManager fragmentManager = getActivity().getSupportFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
GrammarFragment GF = new GrammarFragment();
fragmentTransaction.replace(R.id.container, GF);
fragmentTransaction.commit();
}
else
{
FragmentManager fragmentManager = getActivity().getSupportFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
CultureFragment CF = new CultureFragment();
fragmentTransaction.replace(R.id.container, CF);
fragmentTransaction.commit();
}
}
});
lesson = (TextView) view.findViewById(R.id.grammarContent);
String[] lessons;
if(!culture)
lessons = getActivity().getResources().getStringArray(R.array.lessons);
else
lessons = getActivity().getResources().getStringArray(R.array.cultureLessons);
lessonContent = lessons[lessonID];
lesson.setText(lessonContent);
return view;
}
@Override
public void onAttach(Context context)
{
super.onAttach(context);
if (context instanceof OnFragmentInteractionListener)
{
mListener = (OnFragmentInteractionListener) context;
}
else
{
throw new RuntimeException(context.toString()
+ " must implement OnFragmentInteractionListener");
}
}
@Override
public void onDetach()
{
super.onDetach();
mListener = null;
}
/**
* This interface must be implemented by activities that contain this
* fragment to allow an interaction in this fragment to be communicated
* to the activity and potentially other fragments contained in that
* activity.
* <p>
* See the Android Training lesson <a href=
* "http://developer.android.com/training/basics/fragments/communicating.html"
* >Communicating with Other Fragments</a> for more information.
*/
public interface OnFragmentInteractionListener
{
void onBackClickCulture();
}
}
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content"
tools:context="com.example.xxxxxx.loremipsum.LessonFragment">
<ScrollView
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/grammarContent"
android:textSize="18sp"
/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Back"
android:id="@+id/backButton"
tools:ignore="OnClick" />
</LinearLayout>
</ScrollView>
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.xxxxxx.loremipsum.MainActivity">
<android.support.design.widget.BottomNavigationView
android:id="@+id/navigation"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginEnd="0dp"
android:layout_marginStart="0dp"
android:background="?android:attr/windowBackground"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:menu="@menu/navigation" />
</android.support.constraint.ConstraintLayout>
请在MainActivity
xml部分再添加一个布局。您还可以使用R.id.container
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.buttonnavifragment.MainActivity">
<FrameLayout
android:id="@+id/fl_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginLeft="@dimen/activity_horizontal_margin"
android:layout_marginStart="@dimen/activity_horizontal_margin"
android:layout_marginTop="@dimen/activity_vertical_margin"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<android.support.design.widget.BottomNavigationView
android:id="@+id/navigation"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginEnd="0dp"
android:layout_marginStart="0dp"
android:background="?android:attr/windowBackground"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:menu="@menu/navigation" />
</android.support.constraint.ConstraintLayout>
- 您的容器应该是一个视图，该视图应该位于
BottomNavigationView
之上。这就是为什么你会有这些冲突。因为您只需在父视图上附加片段
- 始终将背景设置为
Fragmen