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
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<activityandroid: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"/><applicationandroid: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-dataandroid:name="com.google.android.gms.version"android:value="@integer/google_play_services_version" /><activityandroid: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. --><activityandroid: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
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<RelativeLayoutxmlns: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"><Buttonandroid: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"/><TextViewandroid: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
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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;@Overrideprotected 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 {@Overridepublic 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");}}@Overridepublic 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();}}@Overrideprotected void onSaveInstanceState(Bundle outState) {super.onSaveInstanceState(outState);outState.putString("name", "zxx");outState.putInt("id", 9527);System.out.println("---> onSaveInstanceState()");}@Overrideprotected 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);}@Overridepublic 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;}@Overridepublic 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！
