Android Activity之间的跳转

来源：互联网发布：淘宝我的积分查询编辑：程序博客网时间：2024/05/21 06:36

一、显示启动

1、在应用中增加一个Activity，这需要修改AndroidManifest.xml文件

 <application        android:allowBackup="true"        android:icon="@drawable/ic_launcher"        android:label="@string/app_name"        android:theme="@style/AppTheme" >        <activity            android:name="com.example.test.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>        <activity            android:name="com.example.test.NextActivity">        </activity>    </application>

2、在layout文件夹中新建两个.xml文件 activity_main.xml 和 activity_next.xml，并在xml中定义相应的跳转按钮。

3、new class MainActivity.java

package com.example.asd;import android.os.Bundle;import android.app.Activity;import android.content.Intent;import android.view.Menu;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;public class MainActivity extends Activity {private Button fistButton;@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);fistButton = (Button) findViewById(R.id.fistButton);fistButton.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {Intent it = new Intent();it.setClass(MainActivity.this, NextActivity.class);startActivity(it);MainActivity.this.finish();}});}}

new class NextActivity.java

package com.example.asd;import android.app.Activity;import android.content.Intent;import android.os.Bundle;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;public class NextActivity extends Activity {private Button nextButton;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_next);nextButton = (Button) findViewById(R.id.nextButton);nextButton.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {Intent intent = new Intent();intent.setClass(NextActivity.this, MainActivity.class);startActivity(intent);NextActivity.this.finish();}});}}

二、隐式启动

1、在应用中增加一个Activity，这需要修改AndroidManifest.xml文件，与显示的不同在于，添加了<intent-filter></intent-filter>

<activity            android:name="com.example.test.NextActivity">          <intent-filter  >              <action android:name="qwe"/>              <category android:name="android.intent.category.DEFAULT" />          </intent-filter>        </activity>

2、鼠标响应

next.setOnClickListener(new OnClickListener() {            @Override            public void onClick(View v) {               /* Intent intent = new Intent();                intent.setClass(MainActivity.this,NextActivity.class);*/            Intent intent=new Intent("qwe");                startActivity(intent);                MainActivity.this.finish();            }        });

0 0