Android Intent读取文件大全 转http://blog.csdn.net/chaod5659/article/details/16844907
import java.io.File;
import android.content.Intent;
import android.net.Uri;
/**
*
* @author dingchao
* @version 1.0.0
*
*/
/*
一定要在Manifest.xml中声明权限：
<!-- 在SDCard中创建与删除文件权限 -->
<uses-permissionandroid:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS" />
<!-- 往SDCard写入数据权限-->
<uses-permissionandroid:name="android.permission.WRITE_EXTERNAL_STORAGE" />
*/
public class IntentUtil {
/**
* android获取一个用于打开HTML文件的intent
*
* @filename filename
* @return
*/
public static Intent getHtmlFileIntent(String filename)
{
Uri uri = Uri.parse(filename).buildUpon()
.encodedAuthority("com.android.htmlfileprovider")
.scheme("content").encodedPath(filename).build();
Intent intent = new Intent("android.intent.action.VIEW");
intent.setDataAndType(uri, "text/html");
return intent;
}
/**
* android获取一个用于打开图片文件的intent
*
* @filename filename
* @return
*/
public static Intent getImageFileIntent(String filename)
{
Intent intent = new Intent("android.intent.action.VIEW");
intent.addCategory("android.intent.category.DEFAULT");
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
Uri uri = Uri.fromFile(new File(filename));
intent.setDataAndType(uri, "image/*");
return intent;
}
/**
* android获取一个用于打开PDF文件的intent
* @filename filename
* @return
*/
public static Intent getPdfFileIntent(String filename)
{
Intent intent = new Intent("android.intent.action.VIEW");
intent.addCategory("android.intent.category.DEFAULT");
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
Uri uri = Uri.fromFile(new File(filename));
intent.setDataAndType(uri, "application/pdf");
return intent;
}
/**
* android获取一个用于打开文本文件的intent
* @filename filename
* @filename filenameBoolean
* @return
*/
public static Intent getTextFileIntent(String filename, boolean filenameBoolean)
{
Intent intent = new Intent("android.intent.action.VIEW");
intent.addCategory("android.intent.category.DEFAULT");
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
if (filenameBoolean)
{
Uri uri1 = Uri.parse(filename);
intent.setDataAndType(uri1, "text/plain");
}
else
{
Uri uri2 = Uri.fromFile(new File(filename));
intent.setDataAndType(uri2, "text/plain");
}
return intent;
}
/**
* android获取一个用于打开音频文件的intent
* @filename filename
* @return
*/
public static Intent getAudioFileIntent(String filename)
{
Intent intent = new Intent("android.intent.action.VIEW");
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
intent.putExtra("oneshot", 0);
intent.putExtra("configchange", 0);
Uri uri = Uri.fromFile(new File(filename));
intent.setDataAndType(uri, "audio/*");
return intent;
}
/**
* android获取一个用于打开视频文件的intent
* @filename filename
* @return
*/
public static Intent getVideoFileIntent(String filename)
{
Intent intent = new Intent("android.intent.action.VIEW");
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
intent.putExtra("oneshot", 0);
intent.putExtra("configchange", 0);
Uri uri = Uri.fromFile(new File(filename));
intent.setDataAndType(uri, "video/*");
return intent;
}
/**
* android获取一个用于打开CHM文件的intent
* @filename filename
* @return
*/
public static Intent getChmFileIntent(String filename)
{
Intent intent = new Intent("android.intent.action.VIEW");
intent.addCategory("android.intent.category.DEFAULT");
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
Uri uri = Uri.fromFile(new File(filename));
intent.setDataAndType(uri, "application/x-chm");
return intent;
}
/**
* android获取一个用于打开Word文件的intent
* @filename filename
* @return
*/
public static Intent getWordFileIntent(String filename)
{
Intent intent = new Intent("android.intent.action.VIEW");
intent.addCategory("android.intent.category.DEFAULT");
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
Uri uri = Uri.fromFile(new File(filename));
intent.setDataAndType(uri, "application/msword");
return intent;
}
/**
* android获取一个用于打开Excel文件的intent
* @filename filename
* @return
*/
public static Intent getExcelFileIntent(String filename)
{
Intent intent = new Intent("android.intent.action.VIEW");
intent.addCategory("android.intent.category.DEFAULT");
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
Uri uri = Uri.fromFile(new File(filename));
intent.setDataAndType(uri, "application/vnd.ms-excel");
return intent;
}
/**
* android获取一个用于打开PPT文件的intent
* @filename filename
* @return
*/
public static Intent getPptFileIntent(String filename)
{
Intent intent = new Intent("android.intent.action.VIEW");
intent.addCategory("android.intent.category.DEFAULT");
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
Uri uri = Uri.fromFile(new File(filename));
intent.setDataAndType(uri, "application/vnd.ms-powerpoint");
return intent;
}
/**
* 使用举例
*/
public static void Test()
{
//Intent mIntent = getHtmlFileIntent("/mnt/sdcard/tutorial.html");//SD卡主目录
//Intent mIntent = getHtmlFileIntent("/sdcard/tutorial.html");//SD卡主目录,这样也可以
//Intent mIntent= getHtmlFileIntent("/system/etc/tutorial.html");//系统内部的etc目录
//Intent mIntent = getPdfFileIntent("/system/etc/helphelp.pdf");
//Intent mIntent = getWordFileIntent("/system/etc/help.doc");
//Intent mIntent = getExcelFileIntent("/mnt/sdcard/Book1.xls")
//Intent mIntent = getPptFileIntent("/mnt/sdcard/download/Android_PPT.ppt");//SD卡的download目录下
//Intent mIntent = getVideoFileIntent("/mnt/sdcard/ice.avi");
//Intent mIntent = getAudioFileIntent("/mnt/sdcard/ren.mp3");
//Intent mIntent = getImageFileIntent("/mnt/sdcard/images/001041580.jpg");
//Intent mIntent = getTextFileIntent("/mnt/sdcard/hello.txt",false);
//startActivity(mIntent);
}
}
