无法取代/导航片段 [英] unable to replace/navigate fragments
问题描述
我tryng导航从一个片段到另一个。这两个片段是100%的不同,有否 ViewPager
或类似的东西,将它们连接起来。这里是code。
I am tryng to navigate from one fragment to another. These 2 fragments are 100% different, there is no ViewPager
or something like that to connect them. Here is the code.
fragment_view1.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:id="@+id/firstView">
<TextView
android:id="@+id/viewOneText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginLeft="92dp"
android:layout_marginTop="182dp"
android:text="First View"
android:textAppearance="?android:attr/textAppearanceLarge" />
<Button
android:id="@+id/viewOneBtn"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignRight="@+id/viewOneText"
android:layout_below="@+id/viewOneText"
android:layout_marginTop="17dp"
android:text="Click Here" />
<include layout = "@layout/drop_down"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="15dp"
android:layout_alignParentBottom="true"/>
<FrameLayout
android:id="@+id/fragment_view"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</RelativeLayout>
custom_view.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:id="@+id/customFragment" >
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="174dp"
android:text="Custom Fragment"
android:textAppearance="?android:attr/textAppearanceLarge" />
</RelativeLayout>
FirstView.java (使用fragment_view1.xml)
FirstView.java (uses fragment_view1.xml)
package com.example.fragmenttest;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.TextView;
public class FirstView extends DropDownMenu
{
private TextView firstText;
private Button btn;
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
{
View view = inflater.inflate(R.layout.fragment_view1,container,false);
firstText = (TextView)view.findViewById(R.id.viewOneText);
btn = (Button)view.findViewById(R.id.viewOneBtn);
btn.setOnClickListener(new ButtonEvent());
return view;
}
private class ButtonEvent implements OnClickListener
{
@Override
public void onClick(View v)
{
// Create new fragment and transaction
Fragment newFragment = new CustomView();
FragmentTransaction transaction = getFragmentManager().beginTransaction();
// Replace whatever is in the fragment_container view with this fragment,
// and add the transaction to the back stack
transaction.replace(R.id.fragment_view, newFragment);
transaction.addToBackStack(null);
// Commit the transaction
transaction.commit();
}
}
}
CustomView.java(使用custom_view.xml)
CustomView.java (uses custom_view.xml)
package com.example.fragmenttest;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.TextView;
public class CustomView extends Fragment
{
private TextView secondText;
private Button secondViewBtn;
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
{
View view = inflater.inflate(R.layout.custom_view,container,false);
return view;
}
}
在 FirstView.java
,当我按一下按钮,我需要移动到片段 CustomView
。但是,而不是移动,它只是取代了的firstView
上方一切 CustomView
。下面的图片将更好地解释它。
In FirstView.java
, when I click on the button, I need to move to the Fragment CustomView
. But instead moving, it simply replaces everything in CustomView
on top of FirstView
. Below images will explain it better.
的firstView
单独的
CustomView
单独的
按钮打开时的firstView
点击的
为什么会发生这样?请帮忙
Why it is happening like this? Please help
推荐答案
正在试图取代的firstView
新片段,但的firstView
不是一个片段,它的'一个 RelativeLayout的
。
You are trying to replace firstView
with the new fragment, but firstView
is not a fragment, its' a RelativeLayout
.
您不能替换的布局文件静态定义的一个片段。您只能替换您通过动态添加一个片段 FragmentTransaction
。
You cannot replace a fragment defined statically in the layout file. You can only replace fragments that you added dynamically via a FragmentTransaction
.
没有你的布局包含布局片段。
None of your Layout contains fragment in layout.
<fragment
android:id="@+id/fragment1"
android:layout_width="march_parent"
android:layout_height="match_parent"></fragment>
一个新片段将取代现有的片段,这是previously添加到容器中。
A new Fragment will replace an existing Fragment that was previously added to the container.
您或许对这。
这篇关于无法取代/导航片段的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!