Android FragmentTransactionExtended：使Fragment以多种样式动画切换

有多种fragment之间切换的效果,效果是这样的：



Demo的实现是很简单的。

在res/values中，新建一个arrays.xml文件，存放Fragment动画效果的名称，在spinner中使用：

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<?xml version="1.0" encoding="utf-8"?>

<resources>

<string-array name="array_spinner">

<item>SCALEX</item>

<item>SCALEY</item>

<item>SCALEXY</item>

<item>FADE</item>

<item>FLIP_HORIZONTAL</item>

<item>FLIP_VERTICAL</item>

<item>SLIDE_VERTICAL</item>

<item>SLIDE_HORIZONTAL</item>

<item>SLIDE_HORIZONTAL_PUSH_TOP</item>

<item>SLIDE_VERTICAL_PUSH_LEFT</item>

<item>GLIDE</item>

<item>SLIDING</item>

<item>STACK</item>

<item>CUBE</item>

<item>ROTATE_DOWN</item>

<item>ROTATE_UP</item>

<item>ACCORDION</item>

<item>TABLE_HORIZONTAL</item>

<item>TABLE_VERTICAL</item>

<item>ZOOM_FROM_LEFT_CORNER</item>

<item>ZOOM_FROM_RIGHT_CORNER</item>

<item>ZOOM_SLIDE_HORIZONTAL</item>

<item>ZOOM_SLIDE_VERTICAL</item>

</string-array>

</resources>

两个空的fragment的布局（都有一样）：

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<?xml version="1.0" encoding="utf-8"?>

<com.desarrollodroide.libraryfragmenttransactionextended.SlidingRelativeLayout

xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:background="@drawable/back1" >

<TextView

android:layout_centerInParent="true"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="Fragment1"

android:textColor="#FF009922"

android:textSize="20dp"/>

</com.desarrollodroide.libraryfragmenttransactionextended.SlidingRelativeLayout>

主部局：

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<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:orientation="vertical">

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:orientation="horizontal">

<Spinner

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_weight="1"

android:id="@+id/spinner" />

<Button

android:id="@+id/button"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:onClick="addTransition"

android:text="Push" />

</LinearLayout>

<com.desarrollodroide.libraryfragmenttransactionextended.SlidingRelativeLayout

android:id="@+id/fragment_place"

android:layout_marginLeft="10dp"

android:layout_marginRight="10dp"

android:layout_marginBottom="10dp"

android:layout_marginTop="20dp"

android:layout_width="match_parent"

android:layout_height="match_parent">

</com.desarrollodroide.libraryfragmenttransactionextended.SlidingRelativeLayout>

</LinearLayout>

MAinActivity：

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package com.example.scxh.testfragmenttransaction;

import android.app.FragmentManager;

import android.app.FragmentTransaction;

import android.os.Bundle;

import android.support.v7.app.AppCompatActivity;

import android.view.View;

import android.widget.AdapterView;

import android.widget.ArrayAdapter;

import android.widget.Button;

import android.widget.Spinner;

import com.desarrollodroide.libraryfragmenttransactionextended.FragmentTransactionExtended;

public class MainActivity extends AppCompatActivity implements AdapterView.OnItemSelectedListener {

private int optionSelected = 0;

private BlankFragment mFirstFragment;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

Spinner spinner = (Spinner) findViewById(R.id.spinner);

ArrayAdapter adapter=ArrayAdapter.createFromResource(this,R.array.array_spinner,android.R.layout.simple_spinner_item);

adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);

spinner.setAdapter(adapter);

spinner.setOnItemSelectedListener(this);

mFirstFragment=new BlankFragment();

getFragmentManager().beginTransaction()

.add(R.id.fragment_place,mFirstFragment).commit();

}

public void addTransition(View view) {

Button button = (Button) findViewById(R.id.button);

if (getFragmentManager().getBackStackEntryCount() == 0) {

BlankFragment2 fragment2 = new BlankFragment2();

FragmentManager manager = getFragmentManager();

FragmentTransaction transaction=manager.beginTransaction();

FragmentTransactionExtended fragmentTransactionExtended = new FragmentTransactionExtended(this, transaction, mFirstFragment, fragment2, R.id.fragment_place);

fragmentTransactionExtended.addTransition(optionSelected);

fragmentTransactionExtended.commit();

button.setText("Back");

}else{

getFragmentManager().popBackStack();

button.setText("Push");

}

}

@Override

public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {

optionSelected = position;

}

@Override

public void onNothingSelected(AdapterView<?> parent) {

}

@Override

public void onBackPressed(){

Button button = (Button) findViewById(R.id.button);

button.setText("Push");

super.onBackPressed();

}

}