代码语言：javascript复制
data() {
return {
fileSizeString: "", // 缓存总数
}
}, methods: {
// 计算缓存
getStorageSize() {
console.log(123)
let that = this;
plus.cache.calculate(function(size) {
let sizeCache = parseInt(size);
if (sizeCache == 0) {
that.fileSizeString = "0B";
} else if (sizeCache < 1024) {
that.fileSizeString = sizeCache "B";
} else if (sizeCache < 1048576) {
that.fileSizeString = (sizeCache / 1024).toFixed(2) "K";
} else if (sizeCache < 1073741824) {
that.fileSizeString = (sizeCache / 1048576).toFixed(2) "M";
} else {
that.fileSizeString = (sizeCache / 1073741824).toFixed(2) "G";
}
});
},
// 清理缓存
clearStorage() {
let that = this;
let os = plus.os.name;
if (os == 'Android') {
let main = plus.android.runtimeMainActivity();
let sdRoot = main.getCacheDir();
let files = plus.android.invoke(sdRoot, "listFiles");
let len = files.length;
for (let i = 0; i < len; i ) {
let filePath = '' files[i]; // 没有找到合适的方法获取路径，这样写可以转成文件路径
plus.io.resolveLocalFileSystemURL(filePath, function(entry) {
if (entry.isDirectory) {
entry.removeRecursively(function(entry) { //递归删除其下的所有文件及子目录
uni.showToast({
title: '缓存清理完成',
duration: 2000
});
that.getStorageSize(); // 重新计算缓存
}, function(e) {
console.log(e.message)
});
} else {
entry.remove();
}
}, function(e) {
console.log('文件路径读取失败')
});
}
} else { // ios
plus.cache.clear(function() {
uni.showToast({
title: '缓存清理完成',
duration: 2000
});
that.getStorageSize();
});
}
},
}
