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因为地方不够了按原来的方法再新建个fragment,然后修改activity_main.xml文件:<?xml version="1.0" encoding="utf-8"?>
<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">
<LinearLayout
android:id="@+id/idlayout1"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="8"
android:orientation="vertical"/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:orientation="horizontal">
<Button
android:id="@+id/idbutton1"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="button1" />
<Button
android:id="@+id/idbutton2"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="button2" />
<Button
android:id="@+id/idbutton3"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="button3" />
</LinearLayout>
</LinearLayout>
修改MainActivity.kt文件:package com.example.xinwei.fragmentkotlin
import android.app.FragmentTransaction
import android.support.v7.app.AppCompatActivity
import android.os.Bundle
import android.view.View
import kotlinx.android.synthetic.main.activity_main.*
class MainActivity : AppCompatActivity(),View.OnClickListener {
override fun onClick(p0: View?) {
when(p0?.id){
idbutton1.id->{
var manager=fragmentManager
var transaction=manager.beginTransaction()
transaction?.replace(R.id.idlayout1,BlankFragment())
transaction?.commit()
}
idbutton2.id->{
var manager=fragmentManager
var transaction=manager.beginTransaction()
transaction?.replace(R.id.idlayout1,BlankFragment2())
transaction?.commit()
}
idbutton3.id->{
var manager=fragmentManager
var transaction=manager.beginTransaction()
transaction?.replace(R.id.idlayout1,BlankFragment3())
transaction?.commit()
}
}
}
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
idbutton1.setOnClickListener(this)
idbutton2.setOnClickListener(this)
idbutton3.setOnClickListener(this)
var manager=fragmentManager
var transaction=manager.beginTransaction()
transaction?.replace(R.id.idlayout1,BlankFragment())
transaction?.commit()
}
}
修改fragment_blank_fragment3.xml文件:<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context="com.example.xinwei.fragmentkotlin.BlankFragment3">
<TextView
android:id="@+id/idtext1"
android:layout_width="match_parent"
android:layout_height="300dp"
android:gravity="center"
android:layout_gravity="center_horizontal"
android:textColor="#00ff00"
android:textSize="50sp"
android:layout_marginBottom="100dp"
android:text="我 爱 鱼 C" />
<Button
android:id="@+id/idbuttonall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="组合动画"
android:layout_gravity="center_horizontal"/>
</LinearLayout>
修改BlankFragment3.kt文件:package com.example.xinwei.fragmentkotlin
import android.os.Bundle
import android.app.Fragment
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import android.view.animation.*
import android.widget.Button
import android.widget.TextView
/**
* A simple [Fragment] subclass.
*/
class BlankFragment3 : Fragment() {
var view1:View?=null
var button: Button?=null
var text1: TextView?=null
var text2: TextView?=null
var text3: TextView?=null
var text4: TextView?=null
override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?,
savedInstanceState: Bundle?): View? {
view1=inflater.inflate(R.layout.fragment_blank_fragment3, container, false)
text1=view1?.findViewById<TextView>(R.id.idtext1)
button=view1?.findViewById<Button>(R.id.idbuttonall)
text1?.visibility=View.INVISIBLE
groupAnimation()
return view1
}
private fun groupAnimation() {
button?.setOnClickListener {
var set=AnimationSet(false)
var scale= ScaleAnimation(0.1f,1.0f,0.1f,1.0f,0.5f,0.5f)
scale.duration=3000
var animation= AlphaAnimation(0.0f,1.0f)
animation.duration=3000
var rotate= RotateAnimation(0.0f,360.0f,400.0f,400.0f)
rotate.duration=3000
var translate= TranslateAnimation(-100.0f,0.0f,-100.0f,0.0f)
translate.duration=3000
set.addAnimation(scale)
set.addAnimation(animation)
set.addAnimation(rotate)
set.addAnimation(translate)
text1?.visibility=View.VISIBLE
text1?.startAnimation(set)
}
}
}
这里的groupAnimation() 方法就是组合动画代码,效果图为:
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