Android中简单活动窗口的切换--Android

【Android中简单活动窗口的切换--Android】少年辛苦终身事,莫向光阴惰寸功。这篇文章主要讲述Android中简单活动窗口的切换--Android相关的知识,希望能为你提供帮助。
本例实现android中简单Activity窗口切换:借助intent(意图)对应用操作(这里用按钮监听)等的描述,Android根据描述负责找对应的组件,完成组件的调用来实现活动的切换… … 案例比较简单直接附上代码了哈。
1、建两个Activity类,分别为MainActivity.java和GuideActivity.java… …
MainActivity.java(核心文件): package livetelecast.thonlon.example.cn.thonlonlivetelecast;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
public class MainActivity extends AppCompatActivity {
private Button btn_oprnActivity;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btn_oprnActivity=(Button) findViewById(R.id.btn_openActivity);
btn_oprnActivity.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent intent=new Intent();
intent.setClass(MainActivity.this,GuidActivity.class);
startActivity(intent);
}
});
}
}
GuideActivity.java: package livetelecast.thonlon.example.cn.thonlonlivetelecast;
import android.app.Activity;
import android.os.Bundle;
/**
* Created by NIUXINLONG on 2018/4/29.
*/
public class GuidActivity extends Activity{
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_guide);
}
}
2、分别建立与Activity对应的布局文件activity_main.xml、activity_guide.xml:
activity_main.xml:
< ?xml version="1.0" encoding="utf-8"?>
< RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent" android:layout_height="match_parent">
< Button
android:id="@+id/btn_openActivity"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/btn_open"/>
< /RelativeLayout> activity_guide.xml: < ?xml version="1.0" encoding="utf-8"?>
< FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent" android:layout_height="match_parent">
< android.support.v4.view.ViewPager
android:layout_width="match_parent"
android:layout_height="match_parent">
< /android.support.v4.view.ViewPager>
< LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|center_horizontal">
< ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="https://www.songbingjia.com/android/@drawable/point_select"
android:padding="15dp"/>
< ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="https://www.songbingjia.com/android/@drawable/point_normal"
android:padding="15dp"/>
< /LinearLayout>
< /FrameLayout> 3、配AndroidMenifest.xml:(重点是添加两activity)
< ?xml version="1.0" encoding="utf-8"?>
< manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="livetelecast.thonlon.example.cn.thonlonlivetelecast">
< application
android:allowBackup="false"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
< activity android:name=".MainActivity">
< intent-filter>
< action android:name="android.intent.action.MAIN" />
< category android:name="android.intent.category.LAUNCHER" />
< /intent-filter>
< /activity>
< activity android:name=".GuidActivity"/>
< /application>
< /manifest>  

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