Android——Activity跳转

Activity_main.xml

<?xmlversion="1.0"encoding="utf-8"?>
<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"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.example.chenshuai.excise.MainActivity">

<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="HelloWorld!首页"
android:textSize="40dp"
android:id="@+id/textView"/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/textView"
android:layout_alignParentStart="true"
android:layout_marginTop="65dp"
android:text="跳转至下一页"
android:textSize="40dp"
android:id="@+id/clickec"
android:onClick="clickec"/>

</RelativeLayout>

MainActivity.java

packagecom.example.chenshuai.excise;

importandroid.app.Activity;
importandroid.content.Intent;
importandroid.os.Bundle;
importandroid.view.View;

publicclassMainActivityextendsActivity{

@Override
protectedvoidonCreate(BundlesavedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}

publicvoidclickec(Viewv)
{
//先创建意图Intent
//第一个参数来源实例，就是当前Activity实例
//第二个参数目标类，目标Activity的class
Intentin=newIntent(this,excise1.class);
//发动意图
startActivity(in);

}

}

<?xmlversion="1.0"encoding="utf-8"?>
<LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">

<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Excise1第二页"
android:textSize="40dp"
/>

<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="40dp"
/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="150dp"
android:text="返回"
android:textSize="40dp"
android:id="@+id/clickec1"
android:onClick="clickec1"/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="300px"
android:text="跳转至第三页"
android:textSize="40dp"
android:id="@+id/clickec2"
android:onClick="clickec2"/>

</LinearLayout>

packagecom.example.chenshuai.excise;

importandroid.app.Activity;
importandroid.content.Intent;
importandroid.os.Bundle;
importandroid.util.Log;
importandroid.view.View;

/**
*Createdbychenshuaion2016/3/20.
*/
publicclassexcise1extendsActivity{
@Override
protectedvoidonCreate(BundlesavedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.excise1);
Log.e("tag","创建");
}

/*@Override
protectedvoidonStart(){
super.onStart();
Log.e("tag","启动");
}

@Override
protectedvoidonResume(){
super.onResume();
Log.e("tag","显示");
}

@Override
protectedvoidonPause(){
super.onPause();
Log.e("tag","暂停");
}

@Override
protectedvoidonStop(){
super.onStop();
Log.e("tag","停止");
}

@Override
protectedvoidonRestart(){
super.onRestart();
Log.e("tag","重新启动");
}

@Override
protectedvoidonDestroy(){
super.onDestroy();
Log.e("tag","销毁");
}*/
publicvoidclickec1(Viewv)
{

Intentin=newIntent(this,MainActivity.class);
startActivity(in);
}
publicvoidclickec2(Viewv)
{
Intentin1=newIntent(this,excise2.class);
startActivity(in1);
}
}

<?xmlversion="1.0"encoding="utf-8"?>
<LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">

<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="excise2第三页"
android:textSize="40dp"
/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="150dp"
android:text="返回"
android:textSize="40dp"
android:id="@+id/clickec3"
android:onClick="clickec3"
/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="250px"
android:text="关闭"
android:textSize="40dp"
android:id="@+id/clickec4"
android:onClick="clickec4"/>

</LinearLayout>

packagecom.example.chenshuai.excise;

importandroid.app.Activity;
importandroid.content.Intent;
importandroid.os.Bundle;
importandroid.view.View;

/**
*Createdbychenshuaion2016/3/20.
*/
publicclassexcise2extendsActivity{
@Override
protectedvoidonCreate(BundlesavedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.excise2);
}
publicvoidclickec3(Viewv)
{
Intentin=newIntent(this,excise1.class);
startActivity(in);
}
publicvoidclickec4(Viewv)
{
//关闭
finish();
}

}

<?xmlversion="1.0"encoding="utf-8"?>
<manifestxmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.chenshuai.excise">

<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activityandroid:name=".excise2">
<intent-filter>
<actionandroid:name="android.intent.action.VIEW"/>

<categoryandroid:name="android.intent.category.DEFAULT"/>
</intent-filter>
</activity>

<activityandroid:name=".excise1">
<intent-filter>
<actionandroid:name="android.intent.action.VIEW"/>

<categoryandroid:name="android.intent.category.DEFAULT"/>
</intent-filter>
</activity>

<activityandroid:name=".MainActivity">
<intent-filter>
<actionandroid:name="android.intent.action.MAIN"/>

<categoryandroid:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>

</application>

</manifest>