• Android打开各种类型的文件方法总结


    很简单,通过调用系统的intent,我们可以打开各种文件,不熟悉的朋友可以了解下action、datatype、uri的相关知识。

    通用方法如下:

        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;     
            }  

    来自:http://blog.csdn.net/eclipsexys/article/details/39552501

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  • 原文地址:https://www.cnblogs.com/wangfeng520/p/7068698.html
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