在fragment a 輸入資料, 在 fragment b 顯示, 在tab的情況下

MyApp/java

package com.example.t072401;

import android.app.Application;

public class MyApp extends Application {

public static String value1 = "";

}

SecondFragment extends Fragment / java

package com.example.t072401;

import android.app.Fragment;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

public class SecondFragment extends Fragment {

public SecondFragment(){
Log.d("Fragment", "Fragment 2 constructor");
}

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_sec, container,
false);
Log.d("Fragment", "Fragment 2 rootView Created!");
return rootView;
}

@Override
   public void setMenuVisibility(final boolean visible) {
       super.setMenuVisibility(visible);
       if (this.getView() != null)
       {
       TextView tv = (TextView) this.getView().findViewById(R.id.textView1);
       tv.setText(MyApp.value1);
       Log.d("Fragment", "setMenuVisibility");
       }

   }

}

MainActivity/java

package com.example.t072401;

import android.app.Fragment;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

public class SecondFragment extends Fragment {

public SecondFragment(){
Log.d("Fragment", "Fragment 2 constructor");
}

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_sec, container,
false);
Log.d("Fragment", "Fragment 2 rootView Created!");
return rootView;
}

@Override
   public void setMenuVisibility(final boolean visible) {
       super.setMenuVisibility(visible);
       if (this.getView() != null)
       {
       TextView tv = (TextView) this.getView().findViewById(R.id.textView1);
       tv.setText(MyApp.value1);
       Log.d("Fragment", "setMenuVisibility");
       }

   }

}

fragment_main

<RelativeLayout 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:paddingBottom="@dimen/activity_vertical_margin"

    android:paddingLeft="@dimen/activity_horizontal_margin"

    android:paddingRight="@dimen/activity_horizontal_margin"

    android:paddingTop="@dimen/activity_vertical_margin"

    tools:context="com.example.t072401.MainActivity$PlaceholderFragment" >

    <TextView

        android:id="@+id/section_label"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content" />

    <EditText

        android:id="@+id/editText1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_alignLeft="@+id/section_label"

        android:layout_below="@+id/section_label"

        android:ems="10" >

        <requestFocus />

    </EditText>

    <Button

        android:id="@+id/button1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_alignLeft="@+id/editText1"

        android:layout_below="@+id/editText1"

        android:layout_marginTop="14dp"

        android:text="Button" />

</RelativeLayout>

fragment_sec

<?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="fill_parent"

    android:orientation="vertical" >

    <TextView

        android:id="@+id/textView1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="Large Text"

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

</LinearLayout>