#码力全开·技术π对#Play Asset Delivery纹理压缩格式不兼容导致安装失败如何修复？

android {
    // 设置主格式为ASTC，但提供ETC2和ETC1作为回退
    assetPacks = [":assetpack1"]
    textureCompressionFormat = ["ASTC", "ETC2", "ETC1"]
}

delivery:
  install-time:
    texture-compression:
      - format: ASTC
      - format: ETC2
      - format: ETC1

public String getBestSupportedTextureFormat() {
    // 按优先级检查支持的格式
    if (isFormatSupported("ASTC")) {
        return "ASTC";
    } else if (isFormatSupported("ETC2")) {
        return "ETC2";
    } else {
        return "ETC1"; // 最低兼容格式
    }
}

private boolean isFormatSupported(String format) {
    // 实际实现中需要检查设备能力
    // 这里简化示例
    switch (format) {
        case "ASTC":
            return Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP 
                   && isASTCSupportedByGPU();
        case "ETC2":
            return Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1;
        case "ETC1":
            return true; // 几乎所有设备都支持
        default:
            return false;
    }
}

String format = getBestSupportedTextureFormat();
String texturePath = "textures/" + format + "/my_texture.ktx";

try (AssetFileDescriptor afd = getAssets().openFd(texturePath)) {
    // 加载纹理...
} catch (IOException e) {
    Log.e("TextureLoad", "Failed to load texture: " + texturePath, e);
}

delivery:
  on-demand:
    texture-compression:
      - format: ASTC
        device-feature:
          name: "android.hardware.opengles.aep"
          version: 1
      - format: ETC2
        device-feature:
          name: "android.hardware.opengles.version"
          version: 0x30000
      - format: ETC1