glide set cache path

The image cache downloaded by glide is saved in the app. Sometimes there may be a need to put the cache on the SD card. Of course, my phone does not have an SD card, so I can't test how to set the SD card path.

Add in build.gradle according to the tutorial

implementation 'com.github.bumptech.glide:glide:4.5.0'
annotationProcessor 'com.github.bumptech.glide:compiler:4.5.0'

Create a new class to inherit AppGlideModule

@GlideModule
public class GlideCache extends AppGlideModule {
    @Override
public void applyOptions(Context context, GlideBuilder builder) {
        super.applyOptions(context, builder);
}        

    @Override
public void registerComponents(@NonNull Context context, @NonNull Glide glide, @NonNull Registry registry) {
        super.registerComponents(context, glide, registry);
}        
}

The above @GlideModule must be added

Then modify the code inside applyOptions

@Override
public void applyOptions(Context context, GlideBuilder builder) {
    int diskCacheSizeBytes = 1024 * 1024 * 100; // 100 MB
    //手机app路径
appRootPath = context.getCacheDir().getPath();
builder.setDiskCache(
            new DiskLruCacheFactory( getStorageDirectory()+"/GlideDisk", diskCacheSizeBytes )        
    );

}
//外部路径
private String sdRootPath = Environment.getExternalStorageDirectory().getPath();
private String appRootPath = null;
private String getStorageDirectory(){
    return Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED) ?
            sdRootPath : appRootPath;
}

Determine whether there is an external path, set this path if there is, use the internal path if not

Then Build->Make Project, then you can use GlideApp in the code

GlideApp.with(this).load("http://ww4.sinaimg.cn/large/610dc034gw1f96kp6faayj20u00jywg9.jpg").into(imageView);

缓存保存到了指定路径

记得加权限，网络和文件读写权限

网上有很多glide的资料，以后用到慢慢搞

glide set cache path

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