本文实例讲述了Android实现打开各种文件的intent方法。分享给大家供大家参考，具体如下：

import android.app.Activity; import Android.content.Intent; import android.net.Uri; import android.net.Uri.Builder; import Java.io.File; import android.content.Intent; //自定义android Intent类， //可用于获取打开以下文件的intent //PDF,PPT,WORD,EXCEL,CHM,HTML,TEXT,AUDIO,VIDEO

示例:

//这个不行，可能是因为PDF.apk程序没有权限访问其它APK里的asset资源文件,又或者是路径写错? //Intent it = getPdfFileIntent("file:///android_asset/helphelp.pdf"); //下面这些都OK //Intent it = getHtmlFileIntent("/mnt/sdcard/tutorial.html");//SD卡主目录 //Intent it = getHtmlFileIntent("/sdcard/tutorial.html");//SD卡主目录,这样也可以 Intent it = getHtmlFileIntent("/system/etc/tutorial.html");//系统内部的etc目录 //Intent it = getPdfFileIntent("/system/etc/helphelp.pdf"); //Intent it = getWordFileIntent("/system/etc/help.doc"); //Intent it = getExcelFileIntent("/mnt/sdcard/Book1.xls") //Intent it = getPptFileIntent("/mnt/sdcard/download/Android_PPT.ppt");//SD卡的download目录下 //Intent it = getVideoFileIntent("/mnt/sdcard/ice.avi"); //Intent it = getAudioFileIntent("/mnt/sdcard/ren.mp3"); //Intent it = getImageFileIntent("/mnt/sdcard/images/001041580.jpg"); //Intent it = getTextFileIntent("/mnt/sdcard/hello.txt",false); startActivity( it ); public class MyIntent { //android获取一个用于打开HTML文件的intent public static Intent getHtmlFileIntent( String param ) { Uri uri = Uri.parse(param ).buildUpon().encodedAuthority("com.android.htmlfileprovider").scheme("content").encodedPath(param ).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 public static Intent getImageFileIntent( String param ) { 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(param )); intent.setDataAndType(uri, "image/*"); return intent; } //android获取一个用于打开PDF文件的intent public static Intent getPdfFileIntent( String param ) { 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(param )); intent.setDataAndType(uri, "application/pdf"); return intent; } //android获取一个用于打开文本文件的intent public static Intent getTextFileIntent( String param, boolean paramBoolean) { Intent intent = new Intent("android.intent.action.VIEW"); intent.addCategory("android.intent.category.DEFAULT"); intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); if (paramBoolean) { Uri uri1 = Uri.parse(param ); intent.setDataAndType(uri1, "text/plain"); } else { Uri uri2 = Uri.fromFile(new File(param )); intent.setDataAndType(uri2, "text/plain"); } return intent; } //android获取一个用于打开音频文件的intent public static Intent getAudioFileIntent( String param ) { 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(param )); intent.setDataAndType(uri, "audio/*"); return intent; } //android获取一个用于打开视频文件的intent public static Intent getVideoFileIntent( String param ) { 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(param )); intent.setDataAndType(uri, "video/*"); return intent; } //android获取一个用于打开CHM文件的intent public static Intent getChmFileIntent( String param ) { 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(param )); intent.setDataAndType(uri, "application/x-chm"); return intent; } //android获取一个用于打开Word文件的intent public static Intent getWordFileIntent( String param ) { 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(param )); intent.setDataAndType(uri, "application/msword"); return intent; } //android获取一个用于打开Excel文件的intent public static Intent getExcelFileIntent( String param ) { 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(param )); intent.setDataAndType(uri, "application/vnd.ms-excel"); return intent; } //android获取一个用于打开PPT文件的intent public static Intent getPptFileIntent( String param ) { 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(param )); intent.setDataAndType(uri, "application/vnd.ms-powerpoint"); return intent; } }

希望本文所述对大家Android程序设计有所帮助。