android应用开发详解（十四）--------------Intent的Action属性（续）

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1、工程目录

2、MainActivity.java

package com.example.test_intent_action;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 myBtn;private static final String MY_ACTION = "com.example.test_intent_action.MY_ACTION";@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);myBtn = (Button) findViewById(R.id.button01);myBtn.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View arg0) {// TODO Auto-generated method stubIntent intent = new Intent();// intent.setAction(MY_ACTION);// 下面两句是一起的intent.setAction(Intent.ACTION_GET_CONTENT);intent.setType("vnd.android.cursor.item/phone");startActivity(intent);}});}@Overridepublic boolean onCreateOptionsMenu(Menu menu) {// Inflate the menu; this adds items to the action bar if it is present.getMenuInflater().inflate(R.menu.main, menu);return true;}}

MyActivity.java

package com.example.test_intent_action;import android.app.Activity;import android.content.Intent;import android.os.Bundle;import android.widget.TextView;public class MyActivity extends Activity{private TextView myText;@Overrideprotected void onCreate(Bundle savedInstanceState) {// TODO Auto-generated method stubsuper.onCreate(savedInstanceState);setContentView(R.layout.mylayout);myText=(TextView)findViewById(R.id.textview01);Intent intent = getIntent();String action = intent.getAction();myText.setText(action);}}

3、布局文件

main.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical" >    <Button         android:id="@+id/button01"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="Activity的Action属性测试"/></LinearLayout>

mylayout.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical" >    <TextView        android:id="@+id/textview01"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="" /></LinearLayout>

4、结果演示

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