32-指定Action进行跳转setAction

在MainActivity中指定要跳转的Action,

然后再AndroidManifest.xml中进行配置action,

就会跳转到指定对应Action的Activity中。

更换不同的Action跳转到不同的Activity中。

MainActivity.java

package com.example.actiontest;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 MainActivity extends Activity {public static final String TEST_ACTION = "exmp.intent.action.HELLOWORD";@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);// 获取ButtonButton button = (Button) findViewById(R.id.button);// 添加监听事件button.setOnClickListener(new OnClickListener() {public void onClick(View v) {// 创建Intent对象Intent intent = new Intent();// setActionintent.setAction(TEST_ACTION);// 启动ActivitystartActivity(intent);}});}}

ThirdActivity.java

package com.example.actiontest;import android.app.Activity;import android.os.Bundle;import android.widget.EditText;public class ThirdActivity extends Activity {@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_third);//接收控件EditText editText=(EditText)findViewById(R.id.third);//设置内容String action=getIntent().getAction();editText.setText(action);}}

SecondActivity.java

package com.example.actiontest;import android.app.Activity;import android.os.Bundle;import android.widget.EditText;public class SecondActivity extends Activity {@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_second);// 获取EditTextEditText editText = (EditText) findViewById(R.id.editText);String action = getIntent().getAction();// 设置内容editText.setText(action);}}

AndroidManifest.xml

<manifest xmlns:android="http://schemas.android.com/apk/res/android"    package="com.example.actiontest"    android:versionCode="1"    android:versionName="1.0" >    <uses-sdk        android:minSdkVersion="8"        android:targetSdkVersion="15" />    <application        android:icon="@drawable/ic_launcher"        android:label="@string/app_name"        android:theme="@style/AppTheme" >        <activity            android:name=".MainActivity"            android:label="@string/title_activity_main" >            <intent-filter>                <action android:name="android.intent.action.MAIN" />                <category android:name="android.intent.category.LAUNCHER" />            </intent-filter>        </activity>        <activity            android:name=".SecondActivity"            android:label="@string/title_activity_second" >            <intent-filter>                <!-- 指定该Activity能响应Action为指定字符串的Intent -->                <action android:name="exmp.intent.action.TEST_ACTION" />                <!-- 指定该Action能响应Action属性为HelloWord的Intent -->                <category android:name="android.intent.category.LAUNCHER" />                <!-- 指定该Action能响应Category属性为指定字符串的Intent -->                <category android:name="android.intent.category.DEFAULT" />            </intent-filter>        </activity>        <activity            android:name=".ThirdActivity"            android:label="@string/title_activity_third" >            <intent-filter>                <action android:name="exmp.intent.action.HELLOWORD" />                <category android:name="android.intent.category.DEFAULT" />            </intent-filter>        </activity>    </application></manifest>

activity_main.xml

    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"        android:layout_width="fill_parent"        android:layout_height="fill_parent" ><Button    android:id="@+id/button"    android:layout_width="fill_parent"    android:layout_height="wrap_content"    android:text="跳转到指定的Action"    />    </LinearLayout>

activity_second.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="fill_parent"    android:layout_height="fill_parent" >    <EditText        android:id="@+id/editText"        android:layout_width="fill_parent"        android:layout_height="wrap_content" /></LinearLayout>

activity_third.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" >    <EditText        android:id="@+id/third"        android:layout_width="fill_parent"        android:layout_height="wrap_content" /></RelativeLayout>