铃声设置项目 ------ android应用开发揭秘

Activity01.java

package com.yarin.android.Examples_07_08;

import java.io.File;

import android.app.Activity;

import android.content.Intent;

import android.media.RingtoneManager;

import android.net.Uri;

import android.os.Bundle;

import android.view.View;

import android.widget.Button;

public class Activity01 extends Activity

{

/* 3个按钮 */

private Button mButtonRingtone;

private Button mButtonAlarm;

private Button mButtonNotification;

/* 自定义的类型 */

public static final int ButtonRingtone= 0;

public static final int ButtonAlarm= 1;

public static final int ButtonNotification= 2;

/* 铃声文件夹 */

private String strRingtoneFolder = "/sdcard/music/ringtones";

private String strAlarmFolder = "/sdcard/music/alarms";

private String strNotificationFolder = "/sdcard/music/notifications";

/** Called when the activity is first created. */

@Override

public void onCreate(Bundle savedInstanceState)

{

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

mButtonRingtone = (Button) findViewById(R.id.ButtonRingtone);

mButtonAlarm = (Button) findViewById(R.id.ButtonAlarm);

mButtonNotification = (Button) findViewById(R.id.ButtonNotification);

/* 设置来电铃声 */

mButtonRingtone.setOnClickListener(new Button.OnClickListener()

{

@Override

public void onClick(View arg0)

{

if (bFolder(strRingtoneFolder))

{

//打开系统铃声设置

Intent intent = new Intent(RingtoneManager.ACTION_RINGTONE_PICKER);

//类型为来电RINGTONE

intent.putExtra(RingtoneManager.EXTRA_RINGTONE_TYPE, RingtoneManager.TYPE_RINGTONE);

//设置显示的title

intent.putExtra(RingtoneManager.EXTRA_RINGTONE_TITLE, "设置来电铃声");

//当设置完成之后返回到当前的Activity

startActivityForResult(intent, ButtonRingtone);

}

}

});

/* 设置闹钟铃声 */

mButtonAlarm.setOnClickListener(new Button.OnClickListener()

{

@Override

public void onClick(View arg0)

{

if (bFolder(strAlarmFolder))

{

//打开系统铃声设置

Intent intent = new Intent(RingtoneManager.ACTION_RINGTONE_PICKER);

//设置铃声类型和title

intent.putExtra(RingtoneManager.EXTRA_RINGTONE_TYPE, RingtoneManager.TYPE_ALARM);

intent.putExtra(RingtoneManager.EXTRA_RINGTONE_TITLE, "设置闹铃铃声");

//当设置完成之后返回到当前的Activity

startActivityForResult(intent, ButtonAlarm);

}

}

});

/* 设置通知铃声 */

mButtonNotification.setOnClickListener(new Button.OnClickListener()

{

@Override

public void onClick(View arg0)

{

if (bFolder(strNotificationFolder))

{

//打开系统铃声设置

Intent intent = new Intent(RingtoneManager.ACTION_RINGTONE_PICKER);

//设置铃声类型和title

intent.putExtra(RingtoneManager.EXTRA_RINGTONE_TYPE, RingtoneManager.TYPE_NOTIFICATION);

intent.putExtra(RingtoneManager.EXTRA_RINGTONE_TITLE, "设置通知铃声");

//当设置完成之后返回到当前的Activity

startActivityForResult(intent, ButtonNotification);

}

}

});

}

/* 当设置铃声之后的回调函数 */

@Override

protected void onActivityResult(int requestCode, int resultCode, Intent data)

{

// TODO Auto-generated method stub

if (resultCode != RESULT_OK)

{

return;

}

switch (requestCode)

{

case ButtonRingtone:

try

{

//得到我们选择的铃声

Uri pickedUri = data.getParcelableExtra(RingtoneManager.EXTRA_RINGTONE_PICKED_URI);

//将我们选择的铃声设置成为默认

if (pickedUri != null)

{

RingtoneManager.setActualDefaultRingtoneUri(Activity01.this, RingtoneManager.TYPE_RINGTONE, pickedUri);

}

}

catch (Exception e)

{

}

break;

case ButtonAlarm:

try

{

//得到我们选择的铃声

Uri pickedUri = data.getParcelableExtra(RingtoneManager.EXTRA_RINGTONE_PICKED_URI);

//将我们选择的铃声设置成为默认

if (pickedUri != null)

{

RingtoneManager.setActualDefaultRingtoneUri(Activity01.this, RingtoneManager.TYPE_ALARM, pickedUri);

}

}

catch (Exception e)

{

}

break;

case ButtonNotification:

try

{

//得到我们选择的铃声

Uri pickedUri = data.getParcelableExtra(RingtoneManager.EXTRA_RINGTONE_PICKED_URI);

//将我们选择的铃声设置成为默认

if (pickedUri != null)

{

RingtoneManager.setActualDefaultRingtoneUri(Activity01.this, RingtoneManager.TYPE_NOTIFICATION, pickedUri);

}

}

catch (Exception e)

{

}

break;

}

super.onActivityResult(requestCode, resultCode, data);

}

//检测是否存在指定的文件夹

//如果不存在则创建

private boolean bFolder(String strFolder)

{

boolean btmp = false;

File f = new File(strFolder);

if (!f.exists())

{

if (f.mkdirs())

{

btmp = true;

}

else

{

btmp = false;

}

}

else

{

btmp = true;

}

return btmp;

}

}

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"

>

<TextView

android:id="@+id/TextView01"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:text="选择下面按钮来设置铃声"

/>

<Button

android:id="@+id/ButtonRingtone"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:text="设置来电铃声"

/>

<Button

android:id="@+id/ButtonAlarm"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:text="设置闹钟铃声"

/>

<Button

android:id="@+id/ButtonNotification"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:text="设置通知铃声"

/>

</LinearLayout>