Android 文件打开方式

Android打开文件，具体还是看代码吧，代码最能说明问题。

AndroidFileUtil.java

public static Intent openFile(String filePath){ File file = new File(filePath); if(!file.exists()) return null; /* 取得扩展名 */ String end=file.getName().substring(file.getName().lastIndexOf(".") + 1,file.getName().length()).toLowerCase(); /* 依扩展名的类型决定MimeType */ if(end.equals("m4a")||end.equals("mp3")||end.equals("mid")|| end.equals("xmf")||end.equals("ogg")||end.equals("wav")){ return getAudioFileIntent(filePath); }else if(end.equals("3gp")||end.equals("mp4")){ return getAudioFileIntent(filePath); }else if(end.equals("jpg")||end.equals("gif")||end.equals("png")|| end.equals("jpeg")||end.equals("bmp")){ return getImageFileIntent(filePath); }else if(end.equals("apk")){ return getApkFileIntent(filePath); }else if(end.equals("ppt")){ return getPptFileIntent(filePath); }else if(end.equals("xls")){ return getExcelFileIntent(filePath); }else if(end.equals("doc")){ return getWordFileIntent(filePath); }else if(end.equals("pdf")){ return getPdfFileIntent(filePath); }else if(end.equals("chm")){ return getChmFileIntent(filePath); }else if(end.equals("txt")){ return getTextFileIntent(filePath,false); }else{ return getAllIntent(filePath); } } //Android获取一个用于打开APK文件的intent public static Intent getAllIntent( String param ) { Intent intent = new Intent(); intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); intent.setAction(android.content.Intent.ACTION_VIEW); Uri uri = Uri.fromFile(new File(param )); intent.setDataAndType(uri,"*/*"); return intent; } //Android获取一个用于打开APK文件的intent public static Intent getApkFileIntent( String param ) { Intent intent = new Intent(); intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); intent.setAction(android.content.Intent.ACTION_VIEW); Uri uri = Uri.fromFile(new File(param )); intent.setDataAndType(uri,"application/vnd.android.package-archive"); return intent; } //Android获取一个用于打开VIDEO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AUDIO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; } //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; }