android 编程4.2.1
本帖最后由 alltolove 于 2017-10-2 10:25 编辑学习碎片必须要先安装个平板电脑的模拟器，就在genmotion开始画面新建一个tablet就行了，如图：
重新建个项目，新建两个layout文件，left_fragment.xml<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/colorPrimary">
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/button"
android:layout_gravity="center_horizontal"
android:text="button"/>
</LinearLayout>
right_fragment.xml<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#00ff00">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/text_view"
android:textSize="20sp"
android:layout_gravity="center_horizontal"
android:text="This is right fragment"/>
</LinearLayout>
在主文件mainactivity.java边上新建两个java文件，LeftFragment.javapackage com.example.xinwei.fragmentactivity;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
/**
* Created by xinwei on 2017/10/2.
*/
public class LeftFragment extends Fragment {
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.left_fragment,container,false);
return view;
}
}
RightFragment.javapackage com.example.xinwei.fragmentactivity;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
/**
* Created by xinwei on 2017/10/2.
*/
public class RightFragment extends Fragment {
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.right_fragment,container,false);
return view;
}
}
修改activity_main.xml文件<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal" android:layout_width="match_parent"
android:layout_height="match_parent">
<fragment
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:id="@+id/left_fragment"
android:name="com.example.xinwei.fragmentactivity.LeftFragment" />
<fragment
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:id="@+id/right_fragment"
android:name="com.example.xinwei.fragmentactivity.RightFragment" />
</LinearLayout>
效果图为：
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