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Android是一种基于Linux的自由及开放源代码的操作系统,主要使用于移动设备,如智能手机和平板电脑,由Google公司和开放手机联盟领导及开发。尚未有统一中文名称,中国大陆地区较多人使用“安卓”或“安致”。
这篇文章主要介绍了Android横竖屏切换小结的相关资料,需要的朋友可以参考下
Android手机或平板都会存在横竖屏切换的功能,通常是由物理重力感应触发的,但是有时候也不尽然,通常在设置里面我们可以对手机的横竖屏切换进行关闭。
AndroidManifest.xml
- <activity
- android:name="com.google.android.gms.ads.AdActivity"
- android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|uiMode|screenSize|smallestScreenSize"
- android:theme="@android:style/Theme.Translucent" />
- <?xml version="1.0" encoding="utf-8"?>
- <manifest xmlns:android="http://schemas.android.com/apk/res/android"
- package="com.example.yanlei.yl7" >
- <!-- Include required permissions for Google Mobile Ads to run. -->
- <uses-permission android:name="android.permission.INTERNET" />
- <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
- <uses-permission android:name="android.permission.CHANGE_CONFIGURATION"/>
- <application
- android:allowBackup="true"
- android:icon="@mipmap/ic_launcher"
- android:label="@string/app_name"
- android:theme="@style/AppTheme" >
- <!-- This meta-data tag is required to use Google Play Services. -->
- <meta-data
- android:name="com.google.android.gms.version"
- android:value="@integer/google_play_services_version" />
- <activity
- android:name=".MainActivity"
- android:label="@string/app_name" >
- <intent-filter>
- <action android:name="android.intent.action.MAIN" />
- <category android:name="android.intent.category.LAUNCHER" />
- </intent-filter>
- </activity> <!-- Include the AdActivity configChanges and theme. -->
- <activity
- android:name="com.google.android.gms.ads.AdActivity"
- android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|uiMode|screenSize|smallestScreenSize"
- android:theme="@android:style/Theme.Translucent" />
- </application>
- </manifest>
activity_main.xml
- <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"
- >
- <Button
- android:id="@+id/button"
- android:layout_width="wrap_content"
- android:layout_height="wrap_content"
- android:text="获取Configuration信息"
- android:textSize="25sp"
- android:layout_marginTop="80dip"
- android:layout_centerHorizontal="true"
- />
- <TextView
- android:layout_width="wrap_content"
- android:layout_height="wrap_content"
- android:text="测试ConfigurationChange"
- android:textSize="25sp"
- android:layout_centerInParent="true"
- android:id="@+id/mytext" />
- </RelativeLayout>
MainActivity.java
- package com.example.yanlei.yl7;
- import android.content.res.Configuration;
- import android.os.Bundle;
- import android.support.v7.app.AppCompatActivity;
- import android.view.Menu;
- import android.view.MenuItem;
- import android.view.View;
- import android.view.View.OnClickListener;
- import android.widget.Button;
- import android.widget.TextView;
- import android.widget.Toast;
- public class MainActivity extends AppCompatActivity {
- private Button mButton;
- private TextView pTextView;
- @Override
- protected void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- setContentView(R.layout.activity_main);
- pTextView=(TextView)this.findViewById(R.id.mytext);
- System.out.println("---> onCreate()");
- init();
- }
- private void init() {
- mButton = (Button) findViewById(R.id.button);
- mButton.setOnClickListener(new ClickListenerImpl());
- }
- private class ClickListenerImpl implements OnClickListener {
- @Override
- public void onClick(View v) {
- getConfigurationInfo();
- }
- }
- private void getConfigurationInfo() {
- Configuration configuration = getResources().getConfiguration();
- //获取屏幕方向
- int l = configuration.ORIENTATION_LANDSCAPE;
- int p = configuration.ORIENTATION_PORTRAIT;
- if (configuration.orientation == l) {
- pTextView.setText("现在是横屏====");
- System.out.println("现在是横屏");
- }
- if (configuration.orientation == p) {
- pTextView.setText("现在是竖屏===");
- System.out.println("现在是竖屏");
- }
- }
- @Override
- public void onConfigurationChanged(Configuration newConfig) {
- super.onConfigurationChanged(newConfig);
- //newConfig.orientation获得当前屏幕状态是横向或者竖向
- //Configuration.ORIENTATION_PORTRAIT 表示竖向
- //Configuration.ORIENTATION_LANDSCAPE 表示横屏
- if(newConfig.orientation==Configuration.ORIENTATION_PORTRAIT){
- pTextView.setText("现在是竖屏");
- Toast.makeText(MainActivity.this, "现在是竖屏", Toast.LENGTH_SHORT).show();
- }
- if(newConfig.orientation==Configuration.ORIENTATION_LANDSCAPE){
- pTextView.setText("现在是横屏");
- Toast.makeText(MainActivity.this, "现在是横屏", Toast.LENGTH_SHORT).show();
- }
- }
- @Override
- protected void onSaveInstanceState(Bundle outState) {
- super.onSaveInstanceState(outState);
- outState.putString("name", "zxx");
- outState.putInt("id", 9527);
- System.out.println("---> onSaveInstanceState()");
- }
- @Override
- protected void onRestoreInstanceState(Bundle savedInstanceState) {
- super.onRestoreInstanceState(savedInstanceState);
- String name = savedInstanceState.getString("name");
- int id = savedInstanceState.getInt("id");
- System.out.println("---> onRestoreInstanceState()");
- System.out.println("名字=" + name + ",编号=" + id);
- }
- @Override
- public boolean onCreateOptionsMenu(Menu menu) {
- // Inflate the menu; this adds items to the action bar if it is present.
- getMenuInflater().inflate(R.menu.menu_main, menu);
- return true;
- }
- @Override
- public boolean onOptionsItemSelected(MenuItem item) {
- // Handle action bar item clicks here. The action bar will
- // automatically handle clicks on the Home/Up button, so long
- // as you specify a parent activity in AndroidManifest.xml.
- int id = item.getItemId();
- if (id == R.id.action_settings) {
- return true;
- }
- return super.onOptionsItemSelected(item);
- }
- }
以上内容给大家介绍了Android横竖屏切换小结的相关知识,希望对大家有所帮助!
来源: http://www.phperz.com/article/17/0916/348960.html