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75 lines
2.4 KiB
75 lines
2.4 KiB
package com.gyf.csams
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import android.app.Application
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import androidx.compose.ui.graphics.ImageBitmap
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import androidx.compose.ui.graphics.asImageBitmap
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import coil.ImageLoader
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import coil.ImageLoaderFactory
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import coil.imageLoader
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import coil.memory.MemoryCache
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import coil.request.ImageRequest
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import coil.util.CoilUtils
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import com.gyf.csams.uikit.BackgroundImage
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import com.gyf.csams.util.ImageUtil
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import com.orhanobut.logger.AndroidLogAdapter
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import com.orhanobut.logger.DiskLogAdapter
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import com.orhanobut.logger.Logger
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import okhttp3.OkHttpClient
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class APP : Application(), ImageLoaderFactory {
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private val backgroundImage = mutableMapOf<BackgroundImage, MemoryCache.Key?>()
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suspend fun getImage(image: BackgroundImage): ImageBitmap? {
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val key = backgroundImage[image]
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if (key != null) {
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return applicationContext.imageLoader.memoryCache[key]?.asImageBitmap()
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?: ImageUtil.getImage(applicationContext, image.id)
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} else {
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throw IllegalArgumentException("无法从${key}获取背景图！")
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}
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}
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override fun newImageLoader(): ImageLoader {
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return ImageLoader.Builder(applicationContext)
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.crossfade(true)
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.okHttpClient {
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OkHttpClient.Builder()
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.cache(CoilUtils.createDefaultCache(applicationContext))
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.build()
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}
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.build()
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}
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/**
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* 预加载背景图
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*
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*/
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private fun preloadImage() {
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BackgroundImage.values().forEach {
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Logger.i("预加载背景图:${it.name}")
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val request = ImageRequest.Builder(applicationContext)
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.data(it.id)
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// Optional, but setting a ViewSizeResolver will conserve memory by limiting the size the image should be preloaded into memory at.
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.size(800, 600)
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.listener { _, metadata ->
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Logger.i("metadata.memoryCacheKey=${metadata.memoryCacheKey}")
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backgroundImage[it] = metadata.memoryCacheKey
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}
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.build()
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applicationContext.imageLoader.enqueue(request = request)
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}
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}
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override fun onCreate() {
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super.onCreate()
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//初始化日志
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Logger.addLogAdapter(AndroidLogAdapter())
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Logger.addLogAdapter(DiskLogAdapter())
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Logger.i("${BuildConfig.foreground_app_name}启动")
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preloadImage()
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}
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} |