非常简单的横竖屏切换，两个按钮来实现

里面所展示的MainActivity.class和activity_main.xml是无用的：

<?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" >

    <Button
        android:id="@+id/but_landscape"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="切换成横屏" />

    <Button
        android:id="@+id/but_portrait"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="切换成竖屏" />

</LinearLayout>

HomeActivity.class:

package com.example.vedio_project_heng_shu;

import android.app.Activity;
import android.content.pm.ActivityInfo;
import android.content.res.Configuration;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;

public class HomeActivity extends Activity implements OnClickListener {

    private Button mBtnLandscape;

    private Button mBtnPortrait;

   

   

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.home);

        mBtnLandscape = (Button) findViewById(R.id.but_landscape);

        mBtnPortrait = (Button) findViewById(R.id.but_portrait);

        mBtnLandscape.setOnClickListener(this);

        mBtnPortrait.setOnClickListener(this);

    }



   

    public void onClick(View v) {

                // TODO Auto-generated method stub

                if(v == mBtnLandscape){

                            setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);

                }else{

                            setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);

                }

    }

   

  

    public void onConfigurationChanged(Configuration newConfig) {

        super.onConfigurationChanged(newConfig);

        String message=newConfig.orientation==Configuration.ORIENTATION_LANDSCAPE ? "屏幕设置为：横屏" : "屏幕设置为：竖屏";

        Toast.makeText(this, message, Toast.LENGTH_LONG).show();

    }



    
}

效果图：