我有一个需要在活动上显示的片段,但活动中的按钮一直显示在片段上.我需要片段与活动完全重叠.
活动的xml.
<LinearLayout 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:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="@color/colorPrimary"
android:minHeight="?attr/actionBarSize"
app:navigationIcon="@drawable/ic_close_black_24dp"
app:popupTheme="@style/Theme.AppCompat.NoActionBar"
app:titleTextColor="@color/toolbarTextColor" />
<android.support.design.widget.TextInputLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<EditText
android:layout_width="match_parent"
android:layout_height="match_parent"
android:inputType="textMultiLine"
android:lines="3"
android:maxLines="10"
android:scrollbars="vertical" />
</android.support.design.widget.TextInputLayout>
</LinearLayout>
片段
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
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.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="@color/colorPrimary"
android:minHeight="?attr/actionBarSize"
app:navigationIcon="@drawable/ic_close_black_24dp"
app:popupTheme="@style/Theme.AppCompat.NoActionBar"
app:titleTextColor="@color/toolbarTextColor" />
<TextView
android:id="@+id/firstnameTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="@dimen/activity_horizontal_margin"
/>
<TextView
android:id="@+id/lastnameTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="@dimen/activity_horizontal_margin"
/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Chat" />
<fragment
android:id="@+id/fragment_chat"
android:name="user.InitiateChat_Fragment"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</FrameLayout>
private void init() {
final FragmentManager fragmentManager = getSupportFragmentManager();
fragment = fragmentManager.findFragmentById(R.id.fragment_chat);
final FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction();
fragmentTransaction.hide(fragment);
fragmentTransaction.commit();
}
public void showChatForm() {
showHideFragment(fragment);
}
private void showHideFragment(final Fragment fragment) {
final FragmentTransaction fragTransaction = getSupportFragmentManager().beginTransaction();
fragTransaction.setCustomAnimations(R.anim.fragment_slide_from_bottom, R.anim.fragment_slide_to_bottom);
if (fragment.isHidden()) {
fragTransaction.show(fragment);
} else {
fragTransaction.hide(fragment);
}
fragTransaction.commit();
}
在活动create.Fragment上调用init代码是一个全局变量.
最佳答案 试试这个:
<fragment
android:id="@+id/fragment_chat"
android:name="user.InitiateChat_Fragment"
android:layout_width="match_parent"
android:background="?android:attr/colorBackground" //add this
android:layout_height="match_parent" />
第二道路
在片段中创建一个布局,并在显示片段时隐藏它的可见性
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout 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:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="@color/colorPrimary"
android:minHeight="?attr/actionBarSize"
app:navigationIcon="@drawable/ic_close_black_24dp"
app:popupTheme="@style/Theme.AppCompat.NoActionBar"
app:titleTextColor="@color/toolbarTextColor" />
<LinearLayout
android:id="@+id/activity_button"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:id="@+id/firstnameTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="@dimen/activity_horizontal_margin" />
<TextView
android:id="@+id/lastnameTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="@dimen/activity_horizontal_margin" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Chat" />
</LinearLayout>
<fragment
android:id="@+id/fragment_chat"
android:name="user.InitiateChat_Fragment"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</FrameLayout>
现在在您的代码中:
private void showHideFragment(final Fragment fragment) {
final FragmentTransaction fragTransaction = getSupportFragmentManager().beginTransaction();
fragTransaction.setCustomAnimations(R.anim.fragment_slide_from_bottom, R.anim.fragment_slide_to_bottom);
if (fragment.isHidden()) {
fragTransaction.show(fragment); //show fragment
layout.setVisibility(View.GONE); //hide Linearlayout
} else {
fragTransaction.hide(fragment);
}
fragTransaction.commit();
}
其中LinearLayout layout =(LinearLayout)findViewById(R.id.activity_button);