fragment学两个demo就会用（一）

fragment学两个demo就会用（一）

http://blog.csdn.net/djun100/article/details/10004385(转)

MainActivity

[java] view
plaincopy

package com.example.demo;



import android.content.Intent;

import android.os.Bundle;

import android.support.v4.app.FragmentActivity;

import android.support.v4.app.FragmentTransaction;

import android.view.View;



public class MainActivity extends FragmentActivity {

public static String temp="weesdf";

public static String getTemp() {

return temp;

}

public static void setTemp(String temp) {

MainActivity.temp = temp;

}

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);



// Intent intent=new Intent(MainActivity.this,);

FragmentTransaction ft = getSupportFragmentManager().beginTransaction();

FirstFragment first = new FirstFragment();

//如果用add()的话会出现不完全覆盖效果

ft.replace(R.id.container, first);

ft.commit();

}

//切换到第二个fragment

public void onClick_btn(View v){

FragmentTransaction ft = getSupportFragmentManager().beginTransaction();

SecondFragment second = new SecondFragment();

ft.replace(R.id.container, second);

ft.commit();

}

}

Activity_Second

[java] view
plaincopy

package com.example.demo;



import android.os.Bundle;

import android.support.v4.app.FragmentActivity;

import android.support.v4.app.FragmentTransaction;



public class Activity_Second extends FragmentActivity {



public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_second);



}

}

FirstFragment

[java] view
plaincopy

package com.example.demo;



import android.content.Intent;

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;



public class FirstFragment extends Fragment {



public View onCreateView(LayoutInflater inflater, ViewGroup container,

Bundle savedInstanceState) {

View view = inflater.inflate(R.layout.fragment_first, container, false);

Button bt_first = (Button) view.findViewById(R.id.bt_first);

bt_first.setText(MainActivity.temp);

bt_first.setOnClickListener(new OnClickListener() {



public void onClick(View v) {

Intent intent=new Intent(getActivity(),Activity_Second.class);

startActivity(intent);

}

});

return view;

}

}

SecondFragment

[java] view
plaincopy

package com.example.demo;



import android.os.Bundle;

import android.support.v4.app.Fragment;

import android.support.v4.app.FragmentTransaction;

import android.view.LayoutInflater;

import android.view.View;

import android.view.ViewGroup;

import android.view.View.OnClickListener;

import android.widget.Button;



public class SecondFragment extends Fragment {



public View onCreateView(LayoutInflater inflater, ViewGroup container,

Bundle savedInstanceState) {

View view = inflater

.inflate(R.layout.fragment_second, container, false);

Button bt_second = (Button) view.findViewById(R.id.bt_second);

bt_second.setOnClickListener(new OnClickListener() {



public void onClick(View v) {



FragmentTransaction ft = getFragmentManager().beginTransaction();

ft.setCustomAnimations(R.animator.move_in, R.animator.move_out);

FirstFragment first = new FirstFragment();

ft.replace(R.id.container, first);

ft.commit();

}

});

return view;

}

}

activity_main.xml

[html] view
plaincopy

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

xmlns:tools="http://schemas.android.com/tools"

android:layout_width="fill_parent"

android:layout_height="match_parent"

android:orientation="vertical" >



<Button

android:id="@+id/btn"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:onClick="onClick_btn"

android:text="@string/app_name" />



<RelativeLayout

android:id="@+id/container"

android:layout_width="fill_parent"

android:layout_height="200dp" />



</LinearLayout>

fragmentfirst.xml

[html] view
plaincopy

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

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

android:layout_width="fill_parent"

android:layout_height="match_parent"

android:orientation="vertical"

android:background="#cba" >



<TextView

android:id="@+id/tv_first"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_gravity="center_horizontal"

android:text="这是第一个Fragment"

android:textAppearance="?android:attr/textAppearanceLarge" />



<Button

android:id="@+id/bt_first"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_gravity="center_horizontal"

android:text="点我进入下一个" />



</LinearLayout>

fragmentsecond.xml

[html] view
plaincopy

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

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

android:layout_width="fill_parent"

android:layout_height="match_parent"

android:background="#abc"

android:orientation="vertical" >



<TextView

android:id="@+id/tv_second"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_gravity="center_horizontal"

android:text="这是第二个Fragment"

android:textAppearance="?android:attr/textAppearanceLarge" />



<Button

android:id="@+id/bt_second"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_gravity="center_horizontal"

android:text="点我回到第一个" />



</LinearLayout>

已在资源中上传demo源码http://download.csdn.net/detail/djun100/5974251