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| <template>
<view>
<view class="cont-wrap">
<view class="listItem" @click="clern">
<view class="itemLeft">
<text>清除缓存</text>
</view>
<view class="itemRight">
<text class="rtext">{{fileSizeString}}</text>
</view>
</view>
</view>
</view>
</template>
<script>
export default {
data() {
return {
fileSizeString: ""
}
},
onLoad() {
this.formatSize();
},
methods: {
// 获取缓存
formatSize() {
let that = this;
// #ifdef APP-PLUS
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) + "KB";
} else if (sizeCache < 1073741824) {
that.fileSizeString = (sizeCache / 1048576).toFixed(2) + "MB";
} else {
that.fileSizeString = (sizeCache / 1073741824).toFixed(2) + "GB";
}
});
// #endif
},
// 清除缓存
clern() {
let that = this
// #ifdef APP-PLUS
uni.showModal({
title: '清除缓存',
content: '您确定要清除缓存吗？',
success: function(res) {
if (res.confirm) {
console.log('用户点击确定');
that.clearCache()
} else if (res.cancel) {
console.log('用户点击取消');
}
}
});
// #endif
},
// 清理缓存
clearCache() {
let that = this;
uni.showLoading({
mask: true,
title: "清除中..."
})
// #ifdef APP-PLUS
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.hideLoading();
uni.showToast({
title: '缓存清理完成',
duration: 2000
});
that.formatSize(); // 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.formatSize();
});
}
// #endif
}
}
}
</script>
|