android 动态横竖屏,Android实现动态切换横竖屏，保存横竖屏数据（用Preference存储）...

怼烎@ 2022-10-17 11:20 273阅读 0赞

package com.test;

import android.app.Activity;

import android.content.pm.ActivityInfo;

import android.os.Bundle;

import android.view.View;

import android.view.View.OnLongClickListener;

import android.view.Window;

import android.view.WindowManager;

import android.widget.TextView;

import android.widget.Toast;

/\*\*

\* class name：TestAndroid\_BasicActivity

\* class description：动态设置横竖屏哦

\* PS：既然要实现横竖屏的变更，所以设置的记录就必须持久化存储 你可以用数据库，这里用的是简单一点的Preference

\* @version 1.00 2011/09/21

\* @author CODYY)peijiangping

\*/

public class TestAndroid\_BasicActivity extends Activity implements

OnLongClickListener \{

// 设置默认为横屏SCREEN\_ORIENTATION\_LANDSCAPE,竖屏SCREEN\_ORIENTATION\_PORTRAIT

private int ORIENTATION = ActivityInfo.SCREEN\_ORIENTATION\_LANDSCAPE;

private TextView textview;

private MyPreference mpf;

@Override

public void onCreate(Bundle savedInstanceState) \{

super.onCreate(savedInstanceState);

mpf = new MyPreference(this, "love");

try \{

ORIENTATION = mpf.read("model");

\} catch (Exception e) \{

System.out.println("first");

requestWindowFeature(Window.FEATURE\_NO\_TITLE);// 去掉标题栏

getWindow().setFlags(WindowManager.LayoutParams.FLAG\_FULLSCREEN,

WindowManager.LayoutParams.FLAG\_FULLSCREEN);// 设置全屏

// 设置横竖屏

setRequestedOrientation(ORIENTATION);

setContentView(R.layout.main);

init();

private void init() \{

textview = (TextView) this.findViewById(R.id.textview);

textview.setText("Loveing");

textview.setOnLongClickListener(this);// 实现长按事件监听

@Override

public boolean onLongClick(View v) \{

// 如果当前为横屏

if (ORIENTATION == ActivityInfo.SCREEN\_ORIENTATION\_LANDSCAPE) \{

// 将竖屏保存进MyPreference

mpf.write("model", ActivityInfo.SCREEN\_ORIENTATION\_PORTRAIT);

// 显示一个toast提示

Toast toast = Toast.makeText(this, "横屏已经切换成竖屏，请重新进入应用查看",

Toast.LENGTH\_SHORT);

toast.show();

// 如果当前为竖屏

\} else if (ORIENTATION == ActivityInfo.SCREEN\_ORIENTATION\_PORTRAIT) \{

// 将横屏保存进MyPreference

mpf.write("model", ActivityInfo.SCREEN\_ORIENTATION\_LANDSCAPE);

// 显示一个toast提示

Toast toast = Toast.makeText(this, "竖屏已经切换成横屏，请重新进入应用查看",

Toast.LENGTH\_SHORT);

toast.show();

return false;

package com.test;

import android.content.Context;

import android.content.SharedPreferences;

import android.content.pm.ActivityInfo;

public class MyPreference \{

private SharedPreferences preference;

private String file\_name;

private int value\_int;

//设置默认为横屏

private int defultint = ActivityInfo.SCREEN\_ORIENTATION\_LANDSCAPE;;

public MyPreference(Context context, String str) \{

file\_name = str;

value\_int = 0;

preference = context.getSharedPreferences(file\_name, 0);

public int read(String name) \{

value\_int = preference.getInt(name, defultint);

return value\_int;

public void write(String name, int value) \{

SharedPreferences.Editor editor = preference.edit();

editor.putInt(name, value);

editor.commit();

android 动态横竖屏,Android实现动态切换横竖屏，保存横竖屏数据（用Preference存储）...

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