Android复习(二)

Activity和Intent

 

Activity02

package org.wp.activity;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

public class Activity02 extends Activity {
	private Button myButton;

	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);
		myButton = (Button) findViewById(R.id.myButton);
		myButton.setText("Next");
		myButton.setOnClickListener(new View.OnClickListener() {
			public void onClick(View arg0) {
				Intent intent = new Intent();
				intent.putExtra("name", "张三");
				intent.setClass(Activity02.this, OtherActivity.class);
				startActivity(intent);
			}
		});
	}
}

 

OtherActivity

package org.wp.activity;

import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

public class OtherActivity extends Activity {
	private TextView myTextView;
	private Button otherButton;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.other);
		Intent intent = getIntent();
		String value = intent.getStringExtra("name");
		myTextView = (TextView) findViewById(R.id.myTextView);
		otherButton = (Button) findViewById(R.id.otherButton);
		myTextView.setText(value);
		otherButton.setOnClickListener(new View.OnClickListener() {
			public void onClick(View arg0) {
				Uri uri = Uri.parse("smsto://080000123");
				Intent intent = new Intent(Intent.ACTION_SENDTO, uri);
				intent.putExtra("sms_body", "The SMS Text");
				startActivity(intent);
			}
		});
	}
}

 

main.xml

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

 

other.xml

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

 

strings.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
	<string name="hello">Hello World, Activity02!</string>
	<string name="app_name">Activity02</string>
	<string name="other">OtherActivity</string>
	<string name="otherButton">发送短信</string>
</resources>

 

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
	package="org.wp.activity" android:versionCode="1" android:versionName="1.0">
	<application android:icon="@drawable/icon" android:label="@string/app_name">
		<activity android:name=".Activity02" 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=".OtherActivity" android:label="@string/other" />
	</application>
	<uses-sdk android:minSdkVersion="4" />
</manifest>