Ionic 2: Get size cache directory and clear it

Question

I know the path of the cache directory, here is my code:

this.file.resolveDirectoryUrl(this.file.cacheDirectory).then(data => {
    console.log(JSON.stringify(data)) ;
});

Is it possible in Ionic to know a directory's size and clear all files in it?

score 3 · Answer 1 · answered Aug 10 '17 at 05:51

My solution:

this.file.listDir(this.file.cacheDirectory,'').then((result)=>{
    for(let file of result){
        if(file.isFile == true){

            if(deleteFiles == 1) this.file.removeFile(this.file.cacheDirectory, file.name) ;
            else {
                file.getMetadata(function (metadata) {
                    let name = file.name ;
                    let size = metadata.size ;
                    console.log('Name: ' + name + ' / Size: ' + size) ;
                    sizes += size ;
                    }) ;
                }
        }
    }
}) ;

score 1 · Answer 2 · answered Aug 09 '17 at 15:50

1

Yes, you can.You have to use below methods.

getFreeDiskSpace() - Get free disk space in Bytes

Returns: Promise Returns a promise that resolves with the remaining free disk space in Bytes

removeRecursively(path, dirName) - Removes all files and the directory from a desired location.

path string Base FileSystem. Please refer to the iOS and Android filesystems above

dirName string Name of directory

Returns: Promise Returns a Promise that resolves with a RemoveResult or rejects with an error.

Official doc is here.

answered Aug 09 '17 at 15:50

Sampath

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I need to know size `cacheDirectory` – wstudiokiwi Aug 09 '17 at 15:53
You can get the free disk space and according to that, you have to adjust your requirement. – Sampath Aug 09 '17 at 15:56
I have a question, if i erase the cacheDirectory this erase the sqlite database ? – Jorge Mejia Nov 15 '17 at 22:55
Where you installed it? @JorgeMejia – Sampath Nov 16 '17 at 00:44
Well I use cordova-sqlite-storage plugin for Android but the documentation not specify where is installed the database. – Jorge Mejia Nov 16 '17 at 21:30
OK, then it stores in `/data/data/[packagename]/databases` android.You can see more here.https://stackoverflow.com/questions/9227110/android-where-is-sqlite-database-stored @JorgeMejia – Sampath Nov 16 '17 at 23:45
In other words, you need to uninstall the app to remove SQLite. @JorgeMejia – Sampath Nov 17 '17 at 00:04

Ionic 2: Get size cache directory and clear it

2 Answers2